#ef010b Color Information

#ef010b Color Information
Details | Shades, Tints, and Tones | Variations | Color Coordinates | Color Schemes | HTML+CSS Examples | Coding & Programming | Color Blindness | Accessibility | Related Colors

The hexadecimal value (hex value) of this color is #ef010b. In RGB, it consists of 93.7% Red, 0.4% Green, and 4.3% Blue. Likewise, in the CMYK color space, it consists of 0% Cyan, 99.6% Magenta, 95.4% Yellow, and 6.3% Black. On the color wheel, its Hue is found at 357.5°, with saturation of 99.2% and lightness of 47.1%. The decimal value for #ef010b is 15663371, and its nearest "web safe" color is #ff0000. In the RGB color space, the strongest component for #ef010b is red. In the CMYK color space, its strongest component is magenta. And in the RYB color space, its strongest component is red.
  • HexHex code for this color#ef010b Copy
  • NameThe common name of this color(Unnamed) Copy
  • RGBRed, Green, Blue composition for this color239, 1, 11 Copy
  • RGB PercentPercent Red, Green, Blue composition for this color93.7%, 0.4%, 4.3% Copy
  • CMYCyan, Magenta, Yellow composition for this color0.063, 0.996, 0.957 Copy
  • CMYKCyan, Magenta, Yellow, Black composition for this color0, 0.996, 0.954, 0.063 Copy
  • HSLHue, Saturation, Lightness combination for this color357.5°, 99.2%, 47.1% Copy
  • HSV (or HSB)Hue, Saturation, Brightness combination for this color357.5°, 99.6%, 93.7% Copy
  • XYZCIE 1931 color space XYZ coordinates for this color35.668, 18.397, 1.988 Copy
  • RYBRed, Yellow, Blue composition for this color239, 1, 11 Copy
  • DecimalDecimal representation of this color's hex code15663371 Copy
  • CIE-LABCIELAB color space coordinates for this color49.974, 76.278, 61.087 Copy
  • CIE-LCHCIE-LCH color space coordinates for this color (chroma, hue, etc.)49.974, 97.724, 38.689 Copy
  • CIE-LUVCIE-LUV color space coordinates for this color49.974, 163.328, 34.439 Copy
  • Hunter LabHunter-Lab color space coordinates for this color42.891, 73.379, 27.276 Copy
  • xyYCIE xyY color space coordinates for this color0.636, 0.328, 18.397 Copy
  • AndroidValue of this color in Android development4293853451 / 0xffef010b Copy
  • Web SafeHex code of the nearest "web safe" version of this color#ff0000 Copy
Last Updated: November 26, 2024

Shades of #ef010b

Shades are created by adding black to or removing lightness from a particular color. For #ef010b, its pure hue is 357.5° on the color wheel and its saturation is 99.2%, and its lightness is 47.1%. As the amount of black is added to this hue and we reduce its lightness, the result is increasingly darker shades tints. The palette given below provides 9 different shades of #ef010b, which — excluding black and our original color — range from #1e0001 to #d1010a.

Tints of #ef010b

Tints are created by adding white or lightness to a particular color. For #ef010b, its pure hue is 357.5° on the color wheel and its saturation is 99.2%, and its lightness is 47.1%. As the amount of white (lightness) is added to this hue, the result is increasingly lighter tints. The following palette gives 9 different tints of #ef010b, which — excluding white and our original color — range from #f1212a to #fddfe1.

Tones of #ef010b

Tones are the result of adding gray to a pure hue. In the case of #ef010b, its pure hue is 357.5° on the color wheel and its saturation is 99.2%, so we increase this saturation to create more colorful tones, and decrease the saturation to create grayer tones. The palette shown below gives 9 different tones of #ef010b, which range from #787878 (the grayest / 0% saturation) to #f0000a (the most colorful / 100% saturation).

Variations of #ef010b

There are several ways to create color variations and premutations of #ef010b! For #ef010b, there are 6 variations of the color that can be created by swapping its Red, Green, and Blue color positions, of which 5 are different from our original color. Among these six variations, there are 6 unique colors including our original color, #ef010b. Click on these colors to learn more about them, too!

Color Coordinates of #ef010b

This color, #ef010b, consists of 93.7% Red, 0.4% Green, and 4.3% Blue, resulting in color coordinates Red = 239, Green = 1, Blue = 11. Likewise, the CMYK color space composition for #ef010b is 0% Cyan, 99.6% Magenta, 95.4% Yellow, and 6.3% Black. These values are shown in the following charts and tables.

R93.7%
C0.0%
G0.4%
M99.6%
B4.3%
Y95.4%
K6.3%
Color Base R (Red) G (Green) B (Blue)
Decimal 239 1 11
Octal 357 1 13
Hexa #ef #01 #0b
Binary 11101111 00000001 00001011
Color Base C (Cyan) M (Magenta) Y (Yellow) Y (Black)
Decimal 0 99 95 6
Octal 0 143 137 6
Hexa #00 #63 #5f #06
Binary 00000000 01100011 01011111 00000110

Analogous Colors of #ef010b

Analogous colors are located 30 degrees away from a color's hue on the color wheel. For #ef010b — which has hue 357.5° — its analogous colors are located at 27.5° and 357.5° on the color wheel, with the same saturation and lightness as #ef010b.

Triadic Colors of #ef010b

Triadic colors are located 120 degrees away from a color's hue on the color wheel, which means the original color and its triadic colors are equidistant from one another on the color wheel and form a triangle. For #ef010b — which has hue 357.5° — its triadic colors are located at 117.5° and 357.5° on the color wheel, with the same saturation and lightness as #ef010b.

Complementary Color of #ef010b

A complementary color is located opposite a color on the color wheel (180 degrees away). For #ef010b — which has hue 357.5° — its complementary color is located at 177.5° on the color wheel, with the same saturation and lightness as #ef010b.

Split Complementary Colors of #ef010b

Split complementary colors are the analogs of a color's complement, which places them 210 degrees away on the color wheel from an original color. For #ef010b — which has hue 357.5° — its split complementary colors its split complementary colors are located at 147.5° and 357.5° on the color wheel, with the same saturation and lightness as #ef010b.

Tetradic Colors of #ef010b

Tetradic colors are two sets of complementary colors on either side of a color wheel from each other, forming a rectangle on the color wheel. For #ef010b — which has hue 357.5° — its tetradic colors are located at 267.5°, 357.5°, 87.5°, and 177.5° on the color wheel, with the same saturation and lightness as #ef010b.

Monochromatic Colors of #ef010b

Monochromatic colors are colors that share a common hue but that have different saturations and lightness. For #ef010b, we show 9 different monochromatic colors of it, ranging from #770106 — (which has very low saturation and very low lightness) — to #ff6970 (which has a very high saturation and very high lightness).

HTML+CSS Examples & Previews of #ef010b

We want to make getting started with #ef010b on your website fast and easy! Below are 8 examples of how to integrate #ef010b into a website using HTML+CSS. These examples include showing how #ef010b can be used to color text, backgrounds, shadows, and borders, as well as how it can be used as a solid fill or gradient fill for rectangles. These examples principally make use of <span> and <div> tags, although the CSS shown in particular can be repurposed to make use of #ef010b with other HTML elements.

#ef010b Foreground / Text Color

The color of this text is #ef010b.
<span style="color: #ef010b;">The color of this text is #ef010b.</span>

#ef010b Background Color

The background color for this text is #ef010b.
<div style="background-color: #ef010b; color:#ffffff; width:100%; height:100%; display: flex; justify-content: center; align-items: center;">The background color for this text is #ef010b.</div>

#ef010b Text Shadow Color

This color for the shadow of this text is #ef010b.
<span style="text-shadow: 3px 3px 3px #ef010b;">This color for the shadow of this text is #ef010b.</span>

#ef010b Border Color

This is a div with border color #ef010b.
<div style="border: #ef010b 4px solid;width:100%; height:100%; display: flex; justify-content: center; align-items: center;">This is a div with border color #ef010b.</div>

#ef010b Color Rectangle on a White Background

This is a rectangle of color #ef010b on a white background.
<div style="background-color: #ffffff; padding: 60px; width:100%; height: 100%;"><div style="background-color: #ef010b; color:#ffffff; width:100%; height:100%; padding: 10px; display: flex; justify-content: center; align-items: center;">This is a rectangle of color #ef010b on a white background.</div></div>

#ef010b Color Rectangle on a Black Background

This is a rectangle of color #ef010b on a black background.
<div style="background-color: #000000; padding: 60px; width:100%; height: 100%;"><div style="background-color: #ef010b; color:#ffffff; width:100%; height:100%; padding: 10px; display: flex; justify-content: center; align-items: center;">This is a rectangle of color #ef010b on a black background.</div></div>

Gradient from #ef010b to White

This is a gradient from #ef010b to white.
<div style="background: -webkit-linear-gradient(left,#ef010b,white); /* Firefox */ background: linear-gradient(to right,#ef010b,white); /* Safari */ background: -o-linear-gradient(left,#ef010b,white); /* Opera */ background: -moz-linear-gradient(left,#ef010b,white); width:100%; height:100%; display: flex; justify-content: center; align-items: center;">This is a gradient from #ef010b to white.</div>

Gradient from #ef010b to Black

This is a gradient from #ef010b to black.
<div style="background: -webkit-linear-gradient(left,#ef010b,black); /* Firefox */ background: linear-gradient(to right,#ef010b,black); /* Safari */ background: -o-linear-gradient(left,#ef010b,black); /* Opera */ background: -moz-linear-gradient(left,#ef010b,black); color: #ffffff; width:100%; height:100%; display: flex; justify-content: center; align-items: center;">This is a gradient from #ef010b to black.</div>

Coding & Programming with #ef010b

In addition to using #ef010b on the web, we know you might want to use it in your mobile and desktop apps, too. Whatever your needs, the table below shows how to access #ef010b in the language and environment of your choice. These code snippets are principally the hexadecimal representation of #ef010b, or the RGB color coordinates for the same (Red = 239, Green = 1, Blue = 11). If you need details about the color coordinates of #ef010b in other color spaces, refer to these details as provided toward the top of this page.

Language Environment Code Snippet
HTML + CSS (Hex Code) Web #ef010b
HTML + CSS (RGB Code) Web rgb(239, 1, 11)
CSS Background Color Web .myclass { background-color: #ef010b; }
CSS Foreground + Text Color Web .myclass { color: #ef010b; }
CSS Border Color Web .myclass { border: 2px solid #ef010b; }
Java (Multi-platform) new Color(239, 1, 11);
Python (Multi-platform) Color("#ef010b")
Swift iOS UIColor(red:239, green:1, blue:11, alpha:1.0000)
Objective-C (iOS) iOS [UIColor colorWithRed:239 green:1 blue:11 alpha:1.0000];
OpenGL (Graphics) glColor3f(239f, 1f, 11f);
C# / .NET Windows Color.FromArgb(239, 1, 11);
 

#ef010b Color Blindness

Not everyone can see #ef010b the same way. For those with color blindness, #ef010b might look very, very different. Here, we simulate eight examples of color blindness, and how #ef010b looks next to each one of them. In all cases, #ef010b is placed in a circle in the upper-left corner of each of the below boxes, with the color in the rest of those boxes signifying how #ef010b looks for someone with that type of color blindness. Many people will perceive close similarities between the colors in these boxes and the colors in the circles — with some noticing particular similarities. We offer this insight so that as you make choices about colors to use for your purposes, you can make an informed decision about whether #ef010b will be a good fit for everyone in your audience!

Trichromacy

Protanomaly
Affects 1 in 100 Men & 1 in 10,000 Women

Deuteranomaly
Affects 1 in 17 Men & 1 in 250 Women

Tritanomaly
Affects 1 in 10,000

Dichromacy

Protanopia
Affects 1 in 100, Mostly Men

Deuteranopia
Affects 1 in 100, Mostly Men

Tritanopia
Affects 1 in 100,000

Monochromacy

Achromatopsia
Affects 1 in 20,000

Achromatopsia
Affects 1 in 100,000

Accessibility

Not Accessibility Recommended

We analyzed whether #ef010b is an accessible color when used as a text / foreground color against a white background. This analysis is based on the Web Content Accessibility Guidelines (WCAG) 2 Level issued by W3C. Based on this analysis, we calculate a contrast ratio against white of approximately 4.5:1 against white. While there are some situations where this contrast is high enough to be considered accessible under the AA or AAA level standards, it is not high enough to be considered accessible in all cases. Details about the specific circumstances where #ef010b would and would not be an accessible foreground color are summarized below.

WCAG AA
Normal Size Text

WCAG AA
Large Size Text

WCAG AAA
Normal Size Text

WCAG AAA
Large Size Text