#00A5CE

sRGB · 0 / 165 / 206

#00A5CE belongs to the cyan family. Its hex code tells a screen to mix 0 red, 165 green and 206 blue on a scale of 0 to 255. On the HSL wheel, hue is a position around a circle: 191.9° lands in the cyan region. Its 100.0% saturation makes it strong in color at this lightness. HSL lightness is 40.4% 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 (7.27:1), which helps the shapes of letters stand out.

Color conversions

sRGB (8-bit): 0, 165, 206
HSL: 191.94°, 100.00%, 40.39%
HSV / HSB: 191.94°, 100.00%, 80.78%
CMYK (approx.): 100.00%, 19.90%, 0.00%, 19.22%
CIE XYZ (D65, Y = 100 for white): 24.594, 31.365, 63.152
CIELAB (D65, 2° observer): 62.814, -21.101, -30.893
WCAG relative luminance: 0.31366
24-bit decimal: 42446

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 #00A5CE 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 · 7.27:1

Normal text: AAA
Large text: AAA

White text · 2.89:1

Normal text: Fail
Large text: Fail

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

#CE2900 sits half a turn (180°) from #00A5CE 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.

#00A5CE #CE2900

Analogous

#00CE90 and #003ECE sit 30° to either side of #00A5CE. 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.

#00CE90 #00A5CE #003ECE

Triadic

#00A5CE, #CE00A5 and #A5CE00 are spaced 120° apart, forming a triangle on the wheel. Try one for the main color and the other two for accents.

#00A5CE #CE00A5 #A5CE00

Split complementary

Start at #00A5CE and look across the wheel. #CE003E and #CE9000 sit 30° to either side of its exact opposite, giving you two different accent choices.

#00A5CE #CE003E #CE9000

Square

Starting with #00A5CE, each quarter turn (90°) takes you to the next hue: #9000CE, #CE2900, then #3ECE00. Across the square, #00A5CE pairs with #CE2900, and #9000CE with #3ECE00.

#00A5CE #9000CE #CE2900 #3ECE00

Tetradic

#00A5CE and #CE2900 are opposites, as are #2900CE and #A5CE00. Together they form a rectangle on the wheel, with alternating gaps of 60° and 120°.

#00A5CE #2900CE #CE2900 #A5CE00

Tints

Mixing #00A5CE with white in 20% steps produces this scale. The first mixture, #33B7D8, keeps 80% of the original. By #CCEDF5, the mixture is 80% white.

#00A5CE #33B7D8 #66C9E2 #99DBEB #CCEDF5 #FFFFFF

Shades

Mixing #00A5CE with black in 20% steps produces this scale. The first mixture, #0084A5, keeps 80% of the original. By #002129, the mixture is 80% black.

#00A5CE #0084A5 #00637C #004252 #002129 #000000

Tones

Mixing #00A5CE with middle gray in 20% steps produces this scale. The first mixture, #1A9EBE, keeps 80% of the original. By #668790, the mixture is 80% middle gray.

#00A5CE #1A9EBE #3396AF #4D8F9F #668790 #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

#00A5CE

RGB

rgb(0 165 206)

HSL

hsl(191.942 100.000% 40.392%)

CSS example

.color-sample {
  background-color: #00A5CE;
  color: #000000;
}

Channel breakdown

RGB

#00A5CE uses 0 red, 165 green and 206 blue. Each bar shows how much of that channel’s 0–255 range the screen uses.

Red 0.0%

Green 64.7%

Blue 80.8%

CMYK

A simple CMYK estimate for #00A5CE is 100.0% cyan, 19.9% magenta, 0.0% yellow and 19.2% black. These are ink amounts; a printer profile is needed to predict the result on paper.

Cyan 100.0%

Magenta 19.9%

Yellow 0.0%

Black 19.2%

Nearby colors

The nearest shorthand match is #00AACC. Its matching digit pairs let you write it as #0AC in CSS. For a modern design, keep #00A5CE when you want an exact match. Use its web-safe neighbor, #0099CC, when matching a legacy palette of 216 colors.

Nearest shorthand · #00AACC Nearest web-safe · #0099CC

Gradient to complement

#00A5CE #2290AC #457C89 #676767 #895245 #AC3E22 #CE2900

Color vision previews

Compare how #00A5CE 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.

#8EA1D0

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.

#7791CE

Tritanopia

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

#00B1B2

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.

#73A1CF

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.

#6699CE

Tritanomaly (50%)

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

#00A8C4

Grayscale (luminance)

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

#989898

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.

#6E9FB6

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 0.00000 G 0.37626 B 0.61721

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 0.28665 G 0.63725 B 0.79132

Linear Display P3

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

R 0.06680 G 0.36377 B 0.58922

CIE xyY

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

x 0.206 y 0.263 Y 31.365

CMY

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

C % 100.000 M % 35.294 Y % 19.216

Binary RGB

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

00000000 10100101 11001110