#B2DFD9

sRGB: 178 / 223 / 217

Ancient mountains drift beyond memory
Electric visions transform the fabric of existence
Fierce revelations reveal unspoken wonders

#B2DFD9 belongs to the cyan family. Its hex code tells a screen to mix 178 red, 223 green and 217 blue on a scale of 0 to 255. On the HSL wheel, hue is a position around a circle: 172.0° 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 (14.45:1), which helps the shapes of letters stand out.

Color conversions

sRGB (8-bit): 178, 223, 217
HSL: 172.00°, 41.28%, 78.63%
HSV / HSB: 172.00°, 20.18%, 87.45%
CMYK (approx.): 20.18%, 0.00%, 2.69%, 12.55%
CIE XYZ (D65, Y = 100 for white): 57.269, 67.249, 75.611
CIELAB (D65, 2° observer): 85.630, -15.746, -1.872
WCAG relative luminance: 0.67250
24-bit decimal: 11722713

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 #B2DFD9 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: 14.45:1

Normal text: AAA
Large text: AAA

White text: 1.45:1

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

#DFB2B8 sits half a turn (180°) from #B2DFD9 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.

#B2DFD9 #DFB2B8

Analogous

#B2DFC3 and #B2CFDF sit 30° to either side of #B2DFD9. 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.

#B2DFC3 #B2DFD9 #B2CFDF

Triadic

#B2DFD9, #D9B2DF and #DFD9B2 are spaced 120° apart, forming a triangle on the wheel. Try one for the main color and the other two for accents.

#B2DFD9 #D9B2DF #DFD9B2

Split complementary

Start at #B2DFD9 and look across the wheel. #DFB2CF and #DFC3B2 sit 30° to either side of its exact opposite, giving you two different accent choices.

#B2DFD9 #DFB2CF #DFC3B2

Square

Starting with #B2DFD9, each quarter turn (90°) takes you to the next hue: #C3B2DF, #DFB2B8, then #CFDFB2. Across the square, #B2DFD9 pairs with #DFB2B8, and #C3B2DF with #CFDFB2.

#B2DFD9 #C3B2DF #DFB2B8 #CFDFB2

Tetradic

#B2DFD9 and #DFB2B8 are opposites, as are #B2B8DF and #DFD9B2. Together they form a rectangle on the wheel, with alternating gaps of 60° and 120°.

#B2DFD9 #B2B8DF #DFB2B8 #DFD9B2

Tints

Mixing #B2DFD9 with white in 20% steps produces this scale. The first mixture, #C1E5E1, keeps 80% of the original. By #F0F9F7, the mixture is 80% white.

#B2DFD9 #C1E5E1 #D1ECE8 #E0F2F0 #F0F9F7 #FFFFFF

Shades

Mixing #B2DFD9 with black in 20% steps produces this scale. The first mixture, #8EB2AE, keeps 80% of the original. By #242D2B, the mixture is 80% black.

#B2DFD9 #8EB2AE #6B8682 #475957 #242D2B #000000

Tones

Mixing #B2DFD9 with middle gray in 20% steps produces this scale. The first mixture, #A8CCC7, keeps 80% of the original. By #8A9392, the mixture is 80% middle gray.

#B2DFD9 #A8CCC7 #9EB9B5 #94A6A4 #8A9392 #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

#B2DFD9

RGB

rgb(178 223 217)

HSL

hsl(172.000 41.284% 78.627%)

CSS example

.color-sample {
  background-color: #B2DFD9;
  color: #000000;
}

Channel breakdown

RGB

#B2DFD9 uses 178 red, 223 green and 217 blue. Each bar shows how much of that channel’s 0–255 range the screen uses.

Red 69.8%

Green 87.5%

Blue 85.1%

CMYK

A simple CMYK estimate for #B2DFD9 is 20.2% cyan, 0.0% magenta, 2.7% 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 2.7%

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 #B2DFD9 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

#B2DFD9 #BAD8D4 #C1D0CE #C9C9C9 #D0C1C3 #D8BABE #DFB2B8

Color vision previews

Compare how #B2DFD9 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.

#DADAD9

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.

#D1D3DA

Tritanopia

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

#A5E1DD

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.

#CDDBD9

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.

#C9D8DA

Tritanomaly (50%)

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

#B1DFDA

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.

#C5DBD8

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 0.69387

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 0.85040

Linear Display P3

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

R 0.49717 G 0.72819 B 0.69281

CIE xyY

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

x 0.286 y 0.336 Y 67.249

CMY

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

C % 30.196 M % 12.549 Y % 14.902

Binary RGB

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

10110010 11011111 11011001