#E40708

sRGB · 228 / 7 / 8

#E40708 belongs to the red family. Its hex code tells a screen to mix 228 red, 7 green and 8 blue on a scale of 0 to 255. On the HSL wheel, hue is a position around a circle: 359.7° lands in the red region. Its 94.0% saturation makes it strong in color at this lightness. HSL lightness is 46.1% on a scale from black (0%) to white (100%). Of black and white lettering, white has the clearer light-to-dark separation on this background (4.85:1), which helps the shapes of letters stand out.

Color conversions

sRGB (8-bit): 228, 7, 8
HSL: 359.73°, 94.04%, 46.08%
HSV / HSB: 359.73°, 96.93%, 89.41%
CMYK (approx.): 0.00%, 96.93%, 96.49%, 10.59%
CIE XYZ (D65, Y = 100 for white): 32.114, 16.666, 1.756
CIELAB (D65, 2° observer): 47.837, 73.090, 59.538
WCAG relative luminance: 0.16663
24-bit decimal: 14944008

CMYK uses a profile-free approximation. Printed output depends on the press, ink and paper. Lab uses a D65 white point.

Text contrast

Contrast tells you how clearly lettering separates from #E40708 in light and dark. The ratio compares relative luminance, a measure of light weighted for human vision. Identical colors give 1:1 and black against white gives 21:1. A ratio of 2.99:1 falls just below the 3:1 AA minimum for large text. Body text needs at least 4.5:1 because its finer strokes are harder to distinguish.

Black text · 4.33:1

Normal text: Fail
Large text: AA

White text · 4.85:1

Normal text: AA
Large text: AAA

AA and AAA are WCAG accessibility levels. AAA sets a higher bar: 7:1 for normal text and 4.5:1 for large text. Large text begins at 18 pt regular or 14 pt bold. Ratings use the unrounded ratio. WCAG text contrast guidance

Palettes & scales

Harmonies rotate the hue. Scales mix the starting color with white, black or middle gray in 20% steps in encoded sRGB.

Complementary

#07E4E3 sits half a turn (180°) from #E40708 on the HSL wheel. Keeping saturation and lightness steady while crossing to the opposite hue gives you a contrasting accent. Check text contrast separately before using the pair for lettering.

#E40708 #07E4E3

Analogous

#E40776 and #E47507 sit 30° to either side of #E40708. The three hues are neighbors on the wheel, so you can change the color of a border or highlight while keeping it close to the original.

#E40776 #E40708 #E47507

Triadic

#E40708, #08E407 and #0708E4 are spaced 120° apart, forming a triangle on the wheel. Try one for the main color and the other two for accents.

#E40708 #08E407 #0708E4

Split complementary

Start at #E40708 and look across the wheel. #07E475 and #0776E4 sit 30° to either side of its exact opposite, giving you two different accent choices.

#E40708 #07E475 #0776E4

Square

Starting with #E40708, each quarter turn (90°) takes you to the next hue: #76E407, #07E4E3, then #7507E4. Across the square, #E40708 pairs with #07E4E3, and #76E407 with #7507E4.

#E40708 #76E407 #07E4E3 #7507E4

Tetradic

#E40708 and #07E4E3 are opposites, as are #E4E307 and #0708E4. Together they form a rectangle on the wheel, with alternating gaps of 60° and 120°.

#E40708 #E4E307 #07E4E3 #0708E4

Tints

Mixing #E40708 with white in 20% steps produces this scale. The first mixture, #E93939, keeps 80% of the original. By #FACDCE, the mixture is 80% white.

#E40708 #E93939 #EF6A6B #F49C9C #FACDCE #FFFFFF

Shades

Mixing #E40708 with black in 20% steps produces this scale. The first mixture, #B60606, keeps 80% of the original. By #2E0102, the mixture is 80% black.

#E40708 #B60606 #890405 #5B0303 #2E0102 #000000

Tones

Mixing #E40708 with middle gray in 20% steps produces this scale. The first mixture, #D01F20, keeps 80% of the original. By #946868, the mixture is 80% middle gray.

#E40708 #D01F20 #BC3738 #A85050 #946868 #808080

Copy color codes

Hex, RGB and HSL are three ways to write this screen color. Paste any of them into a CSS color property.

Hex

#E40708

RGB

rgb(228 7 8)

HSL

hsl(359.729 94.043% 46.078%)

CSS example

.color-sample {
  background-color: #E40708;
  color: #FFFFFF;
}

Channel breakdown

RGB

#E40708 uses 228 red, 7 green and 8 blue. Each bar shows how much of that channel’s 0–255 range the screen uses.

Red 89.4%

Green 2.7%

Blue 3.1%

CMYK

A simple CMYK estimate for #E40708 is 0.0% cyan, 96.9% magenta, 96.5% yellow and 10.6% black. These are ink amounts; a printer profile is needed to predict the result on paper.

Cyan 0.0%

Magenta 96.9%

Yellow 96.5%

Black 10.6%

Nearby colors

The nearest shorthand match is #DD0000. Its matching digit pairs let you write it as #D00 in CSS. For a modern design, keep #E40708 when you want an exact match. Use its web-safe neighbor, #CC0000, when matching a legacy palette of 216 colors.

Nearest shorthand · #DD0000 Nearest web-safe · #CC0000

Gradient to complement

#E40708 #BF2C2D #9A5151 #767676 #519A9A #2CBFBF #07E4E3

Color vision previews

Compare how #E40708 appears in each simulation. When two chart lines or status indicators become hard to tell apart, a label, shape or line pattern gives readers another way to distinguish them. Individual perception varies.

Protanopia

A red–green color vision deficiency. Without a distinct response from long-wavelength cones, some reds and greens can look alike, and reds can appear darker.

#615500

Deuteranopia

A red–green color vision deficiency. Without a distinct response from medium-wavelength cones, some greens can be difficult to distinguish from reds or browns.

#928100

Tritanopia

A blue–yellow color vision deficiency. Without a distinct response from short-wavelength cones, blue can resemble green, and yellow can resemble pink.

#FC0012

Protanomaly (50%)

An altered long-wavelength cone response can make reds appear dimmer and harder to distinguish from greens. This swatch shows the model’s halfway setting.

#A14D00

Deuteranomaly (50%)

An altered medium-wavelength cone response can reduce the visible difference between reds and greens. This swatch shows the model’s halfway setting.

#AE6A00

Tritanomaly (50%)

An altered short-wavelength cone response can make blue harder to distinguish from green. This swatch shows the model’s halfway setting.

#E60015

Grayscale (luminance)

This design check removes hue and preserves relative luminance so you can compare light and dark areas.

#717171

Partial grayscale (50% blend)

This design check mixes the original color halfway toward its grayscale equivalent in linear light. Use it to see how a design holds up as color fades.

#B75252

Technical reference

CAM16 and CIECAM02 below assume D65 white, an average surround, background Y of 20 against white at 100, and adapting luminance of 4.07 cd/m².

Linear sRGB

These channels scale with emitted light. Use them for lighting calculations and physically meaningful blends.

R 0.77582 G 0.00212 B 0.00243

Display P3

P3 displays can reproduce a wider range of reds and greens. These coordinates reproduce this same sRGB swatch on a color-managed P3 display.

R 0.82010 G 0.18213 B 0.13146

Linear Display P3

These P3 channels are proportional to light, before display encoding.

R 0.63846 G 0.02781 B 0.01562

CIE xyY

The x and y coordinates locate chromaticity on a diagram. Y gives relative luminance on a scale where white is 100.

x 0.635 y 0.330 Y 16.666

CMY

Ideal cyan, magenta and yellow are the complements of the encoded red, green and blue channels.

C % 10.588 M % 97.255 Y % 96.863

Binary RGB

Each eight-bit group represents one channel. Together they store the 24-bit hex color.

11100100 00000111 00001000