#B00A0C

sRGB: 176 / 10 / 12

Ancient mountains linger without sound
Silent memories awaken beneath celestial skies
Lost whispers awaken sleeping galaxies

#B00A0C belongs to the red family. Its hex code tells a screen to mix 176 red, 10 green and 12 blue on a scale of 0 to 255. On the HSL wheel, hue is a position around a circle: 359.3° lands in the red region. Its 89.2% saturation makes it strong in color at this lightness. HSL lightness is 36.5% 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 (7.25:1), which helps the shapes of letters stand out.

Color conversions

sRGB (8-bit): 176, 10, 12
HSL: 359.28°, 89.25%, 36.47%
HSV / HSB: 359.28°, 94.32%, 69.02%
CMYK (approx.): 0.00%, 94.32%, 93.18%, 30.98%
CIE XYZ (D65, Y = 100 for white): 18.079, 9.475, 1.225
CIELAB (D65, 2° observer): 36.884, 59.604, 46.369
WCAG relative luminance: 0.09474
24-bit decimal: 11536908

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 #B00A0C 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: 2.89:1

Normal text: Fail
Large text: Fail

White text: 7.25:1

Normal text: AAA
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.

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

#0AB0AE sits half a turn (180°) from #B00A0C 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.

#B00A0C #0AB0AE

Analogous

#B00A5F and #B05B0A sit 30° to either side of #B00A0C. 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.

#B00A5F #B00A0C #B05B0A

Triadic

#B00A0C, #0CB00A and #0A0CB0 are spaced 120° apart, forming a triangle on the wheel. Try one for the main color and the other two for accents.

#B00A0C #0CB00A #0A0CB0

Split complementary

Start at #B00A0C and look across the wheel. #0AB05B and #0A5FB0 sit 30° to either side of its exact opposite, giving you two different accent choices.

#B00A0C #0AB05B #0A5FB0

Square

Starting with #B00A0C, each quarter turn (90°) takes you to the next hue: #5FB00A, #0AB0AE, then #5B0AB0. Across the square, #B00A0C pairs with #0AB0AE, and #5FB00A with #5B0AB0.

#B00A0C #5FB00A #0AB0AE #5B0AB0

Tetradic

#B00A0C and #0AB0AE are opposites, as are #B0AE0A and #0A0CB0. Together they form a rectangle on the wheel, with alternating gaps of 60° and 120°.

#B00A0C #B0AE0A #0AB0AE #0A0CB0

Tints

Mixing #B00A0C with white in 20% steps produces this scale. The first mixture, #C03B3D, keeps 80% of the original. By #EFCECE, the mixture is 80% white.

#B00A0C #C03B3D #D06C6D #DF9D9E #EFCECE #FFFFFF

Shades

Mixing #B00A0C with black in 20% steps produces this scale. The first mixture, #8D080A, keeps 80% of the original. By #230202, the mixture is 80% black.

#B00A0C #8D080A #6A0607 #460405 #230202 #000000

Tones

Mixing #B00A0C with middle gray in 20% steps produces this scale. The first mixture, #A62223, keeps 80% of the original. By #8A6869, the mixture is 80% middle gray.

#B00A0C #A62223 #9D393A #935152 #8A6869 #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

#B00A0C

RGB

rgb(176 10 12)

HSL

hsl(359.277 89.247% 36.471%)

CSS example

.color-sample {
  background-color: #B00A0C;
  color: #FFFFFF;
}

Channel breakdown

RGB

#B00A0C uses 176 red, 10 green and 12 blue. Each bar shows how much of that channel’s 0–255 range the screen uses.

Red 69.0%

Green 3.9%

Blue 4.7%

CMYK

A simple CMYK estimate for #B00A0C is 0.0% cyan, 94.3% magenta, 93.2% yellow and 31.0% black. These are ink amounts; a printer profile is needed to predict the result on paper.

Cyan 0.0%

Magenta 94.3%

Yellow 93.2%

Black 31.0%

Nearby colors

The nearest shorthand match is #AA1111. Its matching digit pairs let you write it as #A11 in CSS. For a modern design, keep #B00A0C when you want an exact match. Use its web-safe neighbor, #990000, when matching a legacy palette of 216 colors.

Nearest shorthand: #AA1111 Nearest web-safe: #990000

Gradient to complement

#B00A0C #942627 #794142 #5D5D5D #417978 #269493 #0AB0AE

Color vision previews

Compare how #B00A0C 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.

#4A4107

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.

#706300

Tritanopia

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

#C30010

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.

#7C3B02

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.

#865100

Tritanomaly (50%)

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

#B10112

Grayscale (luminance)

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

#575757

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.

#8D3E3F

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 0.43415 G 0.00304 B 0.00368

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 0.63235 G 0.13980 B 0.10603

Linear Display P3

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

R 0.35761 G 0.01735 B 0.01098

CIE xyY

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

x 0.628 y 0.329 Y 9.475

CMY

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

C % 30.980 M % 96.078 Y % 95.294

Binary RGB

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

10110000 00001010 00001100