#00A0DA

sRGB: 0 / 160 / 218

#00A0DA belongs to the azure family. Its hex code tells a screen to mix 0 red, 160 green and 218 blue on a scale of 0 to 255. On the HSL wheel, hue is a position around a circle: 196.0° lands in the azure region. Its 100.0% saturation makes it strong in color at this lightness. HSL lightness is 42.7% 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 (7.04:1), which helps the shapes of letters stand out.

Color conversions

sRGB (8-bit): 0, 160, 218
HSL: 195.96°, 100.00%, 42.75%
HSV / HSB: 195.96°, 100.00%, 85.49%
CMYK (approx.): 100.00%, 26.61%, 0.00%, 14.51%
CIE XYZ (D65, Y = 100 for white): 25.224, 30.202, 70.832
CIELAB (D65, 2° observer): 61.828, -14.152, -39.097
WCAG relative luminance: 0.30204
24-bit decimal: 41178

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 #00A0DA 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: 7.04:1

Normal text: AAA
Large text: AAA

White text: 2.98:1

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.

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

#DA3A00 sits half a turn (180°) from #00A0DA 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.

#00A0DA #DA3A00

Analogous

#00DAA7 and #0033DA sit 30° to either side of #00A0DA. 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.

#00DAA7 #00A0DA #0033DA

Triadic

#00A0DA, #DA00A0 and #A0DA00 are spaced 120° apart, forming a triangle on the wheel. Try one for the main color and the other two for accents.

#00A0DA #DA00A0 #A0DA00

Split complementary

Start at #00A0DA and look across the wheel. #DA0033 and #DAA700 sit 30° to either side of its exact opposite, giving you two different accent choices.

#00A0DA #DA0033 #DAA700

Square

Starting with #00A0DA, each quarter turn (90°) takes you to the next hue: #A700DA, #DA3A00, then #33DA00. Across the square, #00A0DA pairs with #DA3A00, and #A700DA with #33DA00.

#00A0DA #A700DA #DA3A00 #33DA00

Tetradic

#00A0DA and #DA3A00 are opposites, as are #3A00DA and #A0DA00. Together they form a rectangle on the wheel, with alternating gaps of 60° and 120°.

#00A0DA #3A00DA #DA3A00 #A0DA00

Tints

Mixing #00A0DA with white in 20% steps produces this scale. The first mixture, #33B3E1, keeps 80% of the original. By #CCECF8, the mixture is 80% white.

#00A0DA #33B3E1 #66C6E9 #99D9F0 #CCECF8 #FFFFFF

Shades

Mixing #00A0DA with black in 20% steps produces this scale. The first mixture, #0080AE, keeps 80% of the original. By #00202C, the mixture is 80% black.

#00A0DA #0080AE #006083 #004057 #00202C #000000

Tones

Mixing #00A0DA with middle gray in 20% steps produces this scale. The first mixture, #1A9AC8, keeps 80% of the original. By #668692, the mixture is 80% middle gray.

#00A0DA #1A9AC8 #3393B6 #4D8DA4 #668692 #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

#00A0DA

RGB

rgb(0 160 218)

HSL

hsl(195.963 100.000% 42.745%)

CSS example

.color-sample {
  background-color: #00A0DA;
  color: #000000;
}

Channel breakdown

RGB

#00A0DA uses 0 red, 160 green and 218 blue. Each bar shows how much of that channel’s 0–255 range the screen uses.

Red 0.0%

Green 62.7%

Blue 85.5%

CMYK

A simple CMYK estimate for #00A0DA is 100.0% cyan, 26.6% magenta, 0.0% yellow and 14.5% black. These are ink amounts; a printer profile is needed to predict the result on paper.

Cyan 100.0%

Magenta 26.6%

Yellow 0.0%

Black 14.5%

Nearby colors

The nearest shorthand match is #0099DD. Its matching digit pairs let you write it as #09D in CSS. For a modern design, keep #00A0DA when you want an exact match. Use its web-safe neighbor, #0099CC, when matching a legacy palette of 216 colors.

Nearest shorthand: #0099DD Nearest web-safe: #0099CC

Gradient to complement

#00A0DA #248FB6 #497E91 #6D6D6D #915C49 #B64B24 #DA3A00

Color vision previews

Compare how #00A0DA 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.

#839FDD

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.

#6A8ED9

Tritanopia

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

#00AFB4

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.

#699EDC

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.

#5B95DA

Tritanomaly (50%)

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

#00A4CD

Grayscale (luminance)

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

#959595

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.

#6C9BBC

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 0.00000 G 0.35153 B 0.70110

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 0.27711 G 0.61792 B 0.83442

Linear Display P3

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

R 0.06241 G 0.33986 B 0.66382

CIE xyY

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

x 0.200 y 0.239 Y 30.202

CMY

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

C % 100.000 M % 37.255 Y % 14.510

Binary RGB

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

00000000 10100000 11011010