Color

#C9E4E9

Very light muted cool cyan. Nearest reference color: Gainsboro.

RGB

0–255

201

228

233

CMYK

0–100%

13.73%

2.15%

8.63%

RGB describes how #C9E4E9 is represented with light on digital screens. This color combines red 201, green 228 and blue 233.

CMYK describes the same color using the four components commonly used in printing: cyan 13.73%, magenta 2.15%, yellow 0% and black 8.63%.

HSL values

H 189.37° S 42.11% L 85.1%

In the HSL color model, #C9E4E9 has a hue of 189.37°, 42.11% saturation and 85.1% lightness. The sliders below show where this color sits across each of these three dimensions.

Color insight

#C9E4E9 is a very light, cool cyan with muted chroma.

Temperature: Cool
Lightness: Very light
Chroma: Muted

Color formats

Copy #C9E4E9 in a format ready to use in CSS, design tools or other applications.

HEX #C9E4E9

RGB rgb(201, 228, 233)

HSL hsl(189.37 42.11% 85.1%)

OKLCH oklch(0.900632 0.029349 210.0411)

CSS --color: #C9E4E9;

Tints of #C9E4E9

Tints are lighter variations of #C9E4E9. They keep the character of the original color while moving progressively toward a lighter appearance.

#D9F4F9 #D5F0F5 #D1ECF1 #CDE8ED #C9E4E9

Shades of #C9E4E9

Shades are darker variations of #C9E4E9. Moving toward black increases visual depth while preserving the underlying hue of the color.

#C9E4E9 #8CA5AA #536B6F #1F363A #00070A

Tones of #C9E4E9

Tones reduce the chroma of #C9E4E9, producing quieter and more muted variations without simply making the color lighter or darker.

#C9E4E9 #CEE3E7 #D2E2E4 #D7E0E2 #DBDFE0

Tonal range of #C9E4E9

A continuous light-to-dark scale places #C9E4E9 between its lighter tints and deeper shades.

#D9F4F9 #D5F0F5 #D1ECF1 #CDE8ED #C9E4E9 #8CA5AA #536B6F #1F363A #00070A

CSS color scale

Use this tonal range as reusable CSS custom properties.

:root {
    --color-100: #D9F4F9;
    --color-200: #D5F0F5;
    --color-300: #D1ECF1;
    --color-400: #CDE8ED;
    --color-500: #C9E4E9;
    --color-600: #8CA5AA;
    --color-700: #536B6F;
    --color-800: #1F363A;
    --color-900: #00070A;
}

Colors that go with #C9E4E9

Color harmonies for #C9E4E9 are generated by rotating its hue in the OKLCH color space while preserving its lightness and chroma. This creates classic complementary, analogous, triadic and other hue relationships with more consistent perceptual balance.

Complementary

Opposite on the color wheel, creating the strongest direct hue contrast.

#C9E4E9 #F1D8D3

Analogous

Neighboring hues that stay visually close to the original color.

#CAE5DF #C9E4E9 #CEE1F0

Triadic

Three evenly spaced hues that create a broader, balanced color relationship.

#C9E4E9 #EAD8E8 #E6DEC9

Split complementary

Two hues around the complementary color, providing contrast with more variation.

#C9E4E9 #F0D7DD #EEDACB

Tetradic

Four related hues forming two complementary pairs on the color wheel.

#C9E4E9 #E1DAEF #F1D8D3 #DBE1CC

CSS gradients with #C9E4E9

These gradients show how #C9E4E9 moves toward white, black and its complementary color. Each gradient includes ready-to-use CSS that can be copied directly into a project.

Toward white

A light gradient that moves from the original color toward white.

#C9E4E9 #D7EBEE #E4F1F4 #F2F8F9 #FFFFFF

background: linear-gradient(90deg, #C9E4E9, #D7EBEE, #E4F1F4, #F2F8F9, #FFFFFF);

Toward black

A dark gradient that moves from the original color toward black.

#C9E4E9 #889B9E #4C585A #181D1E #000000

background: linear-gradient(90deg, #C9E4E9, #889B9E, #4C585A, #181D1E, #000000);

Toward the complementary color

A gradient connecting the original color with its complementary hue.

#C9E4E9 #CDE5DA #DBE2CC #EADCCA #F1D8D3

background: linear-gradient(90deg, #C9E4E9, #CDE5DA, #DBE2CC, #EADCCA, #F1D8D3);

Text contrast and accessibility

Contrast determines how clearly text can be distinguished from #C9E4E9. The values below compare white and black text using WCAG contrast ratios.

White text

1.33:1

AA normal Fail AA large Fail AAA normal Fail

Black text

15.76:1

AA normal Pass AA large Pass AAA normal Pass

Recommended text color: #000000 . Relative luminance: 0.7379 .

Accessible CSS

Use the recommended text color with #C9E4E9 as the background.

background-color: #C9E4E9;
color: #000000;

Using #C9E4E9 in design

See how #C9E4E9 works in a simple interface. The examples below use the color as a background, accent and interface element, with text chosen from its accessibility result.

Background

Paletico Color in context

#C9E4E9 used as a full background with its recommended text color.

Accent

Accent color

Use #C9E4E9 to emphasize selected interface elements without filling the entire surface.

Example action

Tonal pair

#D5F0F5

#C9E4E9

#1F363A

Colors similar to #C9E4E9

These nearby colors are generated from perceptual variations of #C9E4E9, including changes in lightness, chroma and hue.

#ECFCFF #AFCACF #ACEBF6 #DEDEDE #C9E5E6 #CAE3EC #D6F2F3 #BDD6DF

Color vision simulation

The simulations below show mathematical approximations of how #C9E4E9 may shift under three forms of color vision deficiency. They are simulations, not a diagnosis or an exact representation of any individual person's vision.

Protanopia #DFE2E9 Deuteranopia #D9DDE9 Tritanopia #C0E7E5

Simulation based on the model by Machado, Oliveira and Fernandes (2009), published in IEEE Transactions on Visualization and Computer Graphics. DOI: 10.1109/TVCG.2009.113.

Advanced color values

Beyond RGB, CMYK and HSL, #C9E4E9 can also be represented in perceptual and device-independent color spaces used in color science and modern design tools.

XYZ

X: 66.5351
Y: 73.786
Z: 87.8116

CIELAB

L*: 88.8213
a*: -7.8588
b*: -5.437

OKLab

L: 0.900632
a: -0.025407
b: -0.014693

OKLCH

L: 0.900632
C: 0.029349
H: 210.0411°