#B2DFD5

sRGB: 178 / 223 / 213

Ancient mountains drift beyond memory
Electric visions transform the fabric of existence
Fierce revelations settle beneath starlight

#B2DFD5 belongs to the cyan family. Its hex code tells a screen to mix 178 red, 223 green and 213 blue on a scale of 0 to 255. On the HSL wheel, hue is a position around a circle: 166.7° lands in the cyan region. Its 41.3% saturation makes it partway between gray and the most vivid version of this hue at this lightness. HSL lightness is 78.6% 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 (14.41:1), which helps the shapes of letters stand out.

Color conversions

sRGB (8-bit): 178, 223, 213
HSL: 166.67°, 41.28%, 78.63%
HSV / HSB: 166.67°, 20.18%, 87.45%
CMYK (approx.): 20.18%, 0.00%, 4.48%, 12.55%
CIE XYZ (D65, Y = 100 for white): 56.755, 67.043, 72.903
CIELAB (D65, 2° observer): 85.526, -16.567, 0.089
WCAG relative luminance: 0.67044
24-bit decimal: 11722709

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 #B2DFD5 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: 14.41:1

Normal text: AAA
Large text: AAA

White text: 1.46:1

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

#DFB2BC sits half a turn (180°) from #B2DFD5 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.

#B2DFD5 #DFB2BC

Analogous

#B2DFBF and #B2D2DF sit 30° to either side of #B2DFD5. 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.

#B2DFBF #B2DFD5 #B2D2DF

Triadic

#B2DFD5, #D5B2DF and #DFD5B2 are spaced 120° apart, forming a triangle on the wheel. Try one for the main color and the other two for accents.

#B2DFD5 #D5B2DF #DFD5B2

Split complementary

Start at #B2DFD5 and look across the wheel. #DFB2D2 and #DFBFB2 sit 30° to either side of its exact opposite, giving you two different accent choices.

#B2DFD5 #DFB2D2 #DFBFB2

Square

Starting with #B2DFD5, each quarter turn (90°) takes you to the next hue: #BFB2DF, #DFB2BC, then #D2DFB2. Across the square, #B2DFD5 pairs with #DFB2BC, and #BFB2DF with #D2DFB2.

#B2DFD5 #BFB2DF #DFB2BC #D2DFB2

Tetradic

#B2DFD5 and #DFB2BC are opposites, as are #B2BCDF and #DFD5B2. Together they form a rectangle on the wheel, with alternating gaps of 60° and 120°.

#B2DFD5 #B2BCDF #DFB2BC #DFD5B2

Tints

Mixing #B2DFD5 with white in 20% steps produces this scale. The first mixture, #C1E5DD, keeps 80% of the original. By #F0F9F7, the mixture is 80% white.

#B2DFD5 #C1E5DD #D1ECE6 #E0F2EE #F0F9F7 #FFFFFF

Shades

Mixing #B2DFD5 with black in 20% steps produces this scale. The first mixture, #8EB2AA, keeps 80% of the original. By #242D2B, the mixture is 80% black.

#B2DFD5 #8EB2AA #6B8680 #475955 #242D2B #000000

Tones

Mixing #B2DFD5 with middle gray in 20% steps produces this scale. The first mixture, #A8CCC4, keeps 80% of the original. By #8A9391, the mixture is 80% middle gray.

#B2DFD5 #A8CCC4 #9EB9B3 #94A6A2 #8A9391 #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

#B2DFD5

RGB

rgb(178 223 213)

HSL

hsl(166.667 41.284% 78.627%)

CSS example

.color-sample {
  background-color: #B2DFD5;
  color: #000000;
}

Channel breakdown

RGB

#B2DFD5 uses 178 red, 223 green and 213 blue. Each bar shows how much of that channel’s 0–255 range the screen uses.

Red 69.8%

Green 87.5%

Blue 83.5%

CMYK

A simple CMYK estimate for #B2DFD5 is 20.2% cyan, 0.0% magenta, 4.5% yellow and 12.5% black. These are ink amounts; a printer profile is needed to predict the result on paper.

Cyan 20.2%

Magenta 0.0%

Yellow 4.5%

Black 12.5%

Nearby colors

The nearest shorthand match is #AADDDD. Its matching digit pairs let you write it as #ADD in CSS. For a modern design, keep #B2DFD5 when you want an exact match. Use its web-safe neighbor, #99CCCC, when matching a legacy palette of 216 colors.

Nearest shorthand: #AADDDD Nearest web-safe: #99CCCC

Gradient to complement

#B2DFD5 #BAD8D1 #C1D0CD #C9C9C9 #D0C1C4 #D8BAC0 #DFB2BC

Color vision previews

Compare how #B2DFD5 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.

#DBD9D5

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.

#D2D3D6

Tritanopia

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

#A6E1DC

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.

#CDDBD5

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.

#CAD7D6

Tritanomaly (50%)

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

#B2DFD7

Grayscale (luminance)

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

#D6D6D6

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.

#C5DAD5

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 0.44520 G 0.73791 B 0.66539

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 0.73349 G 0.86939 B 0.83612

Linear Display P3

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

R 0.49717 G 0.72819 B 0.66688

CIE xyY

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

x 0.289 y 0.341 Y 67.043

CMY

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

C % 30.196 M % 12.549 Y % 16.471

Binary RGB

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

10110010 11011111 11010101