#ED0C19

sRGB: 237 / 12 / 25

#ED0C19 belongs to the red family. Its hex code tells a screen to mix 237 red, 12 green and 25 blue on a scale of 0 to 255. On the HSL wheel, hue is a position around a circle: 356.5° lands in the red region. Its 90.4% saturation makes it strong in color at this lightness. HSL lightness is 48.8% on a scale from black (0%) to white (100%). Of black and white lettering, black has the clearer light-to-dark separation on this background (4.67:1), which helps the shapes of letters stand out.

Color conversions

sRGB (8-bit): 237, 12, 25
HSL: 356.53°, 90.36%, 48.82%
HSV / HSB: 356.53°, 94.94%, 92.94%
CMYK (approx.): 0.00%, 94.94%, 89.45%, 7.06%
CIE XYZ (D65, Y = 100 for white): 35.231, 18.341, 2.605
CIELAB (D65, 2° observer): 49.907, 75.089, 56.008
WCAG relative luminance: 0.18338
24-bit decimal: 15535129

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 #ED0C19 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: 4.67:1

Normal text: AA
Large text: AAA

White text: 4.50:1

Normal text: Fail
Large text: AA

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.

Reference: 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

#0CEDE0 sits half a turn (180°) from #ED0C19 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.

#ED0C19 #0CEDE0

Analogous

#ED0C8A and #ED6F0C sit 30° to either side of #ED0C19. 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.

#ED0C8A #ED0C19 #ED6F0C

Triadic

#ED0C19, #19ED0C and #0C19ED are spaced 120° apart, forming a triangle on the wheel. Try one for the main color and the other two for accents.

#ED0C19 #19ED0C #0C19ED

Split complementary

Start at #ED0C19 and look across the wheel. #0CED6F and #0C8AED sit 30° to either side of its exact opposite, giving you two different accent choices.

#ED0C19 #0CED6F #0C8AED

Square

Starting with #ED0C19, each quarter turn (90°) takes you to the next hue: #8AED0C, #0CEDE0, then #6F0CED. Across the square, #ED0C19 pairs with #0CEDE0, and #8AED0C with #6F0CED.

#ED0C19 #8AED0C #0CEDE0 #6F0CED

Tetradic

#ED0C19 and #0CEDE0 are opposites, as are #EDE00C and #0C19ED. Together they form a rectangle on the wheel, with alternating gaps of 60° and 120°.

#ED0C19 #EDE00C #0CEDE0 #0C19ED

Tints

Mixing #ED0C19 with white in 20% steps produces this scale. The first mixture, #F13D47, keeps 80% of the original. By #FBCED1, the mixture is 80% white.

#ED0C19 #F13D47 #F46D75 #F89EA3 #FBCED1 #FFFFFF

Shades

Mixing #ED0C19 with black in 20% steps produces this scale. The first mixture, #BE0A14, keeps 80% of the original. By #2F0205, the mixture is 80% black.

#ED0C19 #BE0A14 #8E070F #5F050A #2F0205 #000000

Tones

Mixing #ED0C19 with middle gray in 20% steps produces this scale. The first mixture, #D7232E, keeps 80% of the original. By #96696B, the mixture is 80% middle gray.

#ED0C19 #D7232E #C13A42 #AC5257 #96696B #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

#ED0C19

RGB

rgb(237 12 25)

HSL

hsl(356.533 90.361% 48.824%)

CSS example

.color-sample {
  background-color: #ED0C19;
  color: #000000;
}

Channel breakdown

RGB

#ED0C19 uses 237 red, 12 green and 25 blue. Each bar shows how much of that channel’s 0–255 range the screen uses.

Red 92.9%

Green 4.7%

Blue 9.8%

CMYK

A simple CMYK estimate for #ED0C19 is 0.0% cyan, 94.9% magenta, 89.5% yellow and 7.1% black. These are ink amounts; a printer profile is needed to predict the result on paper.

Cyan 0.0%

Magenta 94.9%

Yellow 89.5%

Black 7.1%

Nearby colors

The nearest shorthand match is #EE1111. Its matching digit pairs let you write it as #E11 in CSS. For a modern design, keep #ED0C19 when you want an exact match. Use its web-safe neighbor, #FF0000, when matching a legacy palette of 216 colors.

Nearest shorthand: #EE1111 Nearest web-safe: #FF0000

Gradient to complement

#ED0C19 #C8323A #A2575B #7D7D7D #57A29E #32C8BF #0CEDE0

Color vision previews

Compare how #ED0C19 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.

#655914

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.

#988600

Tritanopia

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

#FF0019

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.

#A8510C

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.

#B56E03

Tritanomaly (50%)

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

#EF001F

Grayscale (luminance)

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

#777777

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.

#BE5658

Reference: National Eye Institute: Types of Color Vision Deficiency

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 0.84687 G 0.00368 B 0.00972

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 0.85277 G 0.19532 B 0.16640

Linear Display P3

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

R 0.69717 G 0.03167 B 0.02358

CIE xyY

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

x 0.627 y 0.326 Y 18.341

CMY

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

C % 7.059 M % 95.294 Y % 90.196

Binary RGB

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

11101101 00001100 00011001