#00AABA

sRGB · 0 / 170 / 186

#00AABA belongs to the cyan family. Its hex code tells a screen to mix 0 red, 170 green and 186 blue on a scale of 0 to 255. On the HSL wheel, hue is a position around a circle: 185.2° lands in the cyan region. Its 100.0% 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, black has the clearer light-to-dark separation on this background (7.46:1), which helps the shapes of letters stand out.

Color conversions

sRGB (8-bit): 0, 170, 186
HSL: 185.16°, 100.00%, 36.47%
HSV / HSB: 185.16°, 100.00%, 72.94%
CMYK (approx.): 100.00%, 8.60%, 0.00%, 27.06%
CIE XYZ (D65, Y = 100 for white): 23.236, 32.293, 51.464
CIELAB (D65, 2° observer): 63.584, -30.394, -18.567
WCAG relative luminance: 0.32295
24-bit decimal: 43706

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 #00AABA 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 · 7.46:1

Normal text: AAA
Large text: AAA

White text · 2.82:1

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

#BA1000 sits half a turn (180°) from #00AABA 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.

#00AABA #BA1000

Analogous

#00BA6D and #004DBA sit 30° to either side of #00AABA. 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.

#00BA6D #00AABA #004DBA

Triadic

#00AABA, #BA00AA and #AABA00 are spaced 120° apart, forming a triangle on the wheel. Try one for the main color and the other two for accents.

#00AABA #BA00AA #AABA00

Split complementary

Start at #00AABA and look across the wheel. #BA004D and #BA6D00 sit 30° to either side of its exact opposite, giving you two different accent choices.

#00AABA #BA004D #BA6D00

Square

Starting with #00AABA, each quarter turn (90°) takes you to the next hue: #6D00BA, #BA1000, then #4DBA00. Across the square, #00AABA pairs with #BA1000, and #6D00BA with #4DBA00.

#00AABA #6D00BA #BA1000 #4DBA00

Tetradic

#00AABA and #BA1000 are opposites, as are #1000BA and #AABA00. Together they form a rectangle on the wheel, with alternating gaps of 60° and 120°.

#00AABA #1000BA #BA1000 #AABA00

Tints

Mixing #00AABA with white in 20% steps produces this scale. The first mixture, #33BBC8, keeps 80% of the original. By #CCEEF1, the mixture is 80% white.

#00AABA #33BBC8 #66CCD6 #99DDE3 #CCEEF1 #FFFFFF

Shades

Mixing #00AABA with black in 20% steps produces this scale. The first mixture, #008895, keeps 80% of the original. By #002225, the mixture is 80% black.

#00AABA #008895 #006670 #00444A #002225 #000000

Tones

Mixing #00AABA with middle gray in 20% steps produces this scale. The first mixture, #1AA2AE, keeps 80% of the original. By #66888C, the mixture is 80% middle gray.

#00AABA #1AA2AE #3399A3 #4D9197 #66888C #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

#00AABA

RGB

rgb(0 170 186)

HSL

hsl(185.161 100.000% 36.471%)

CSS example

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

Channel breakdown

RGB

#00AABA uses 0 red, 170 green and 186 blue. Each bar shows how much of that channel’s 0–255 range the screen uses.

Red 0.0%

Green 66.7%

Blue 72.9%

CMYK

A simple CMYK estimate for #00AABA is 100.0% cyan, 8.6% magenta, 0.0% yellow and 27.1% black. These are ink amounts; a printer profile is needed to predict the result on paper.

Cyan 100.0%

Magenta 8.6%

Yellow 0.0%

Black 27.1%

Nearby colors

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

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

Gradient to complement

#00AABA #1F909B #3E777C #5D5D5D #7C433E #9B2A1F #BA1000

Color vision previews

Compare how #00AABA 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.

#9AA3BB

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.

#8593BA

Tritanopia

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

#00B2AF

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.

#7DA4BB

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.

#729CBA

Tritanomaly (50%)

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

#00ABB6

Grayscale (luminance)

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

#9A9A9A

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.

#70A2AB

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 0.40198 B 0.49102

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 0.29619 G 0.65659 B 0.71945

Linear Display P3

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

R 0.07137 G 0.38863 B 0.47619

CIE xyY

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

x 0.217 y 0.302 Y 32.293

CMY

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

C % 100.000 M % 33.333 Y % 27.059

Binary RGB

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

00000000 10101010 10111010