Color

#66E9A7

Light cool teal. Nearest reference color: Medium aquamarine.

RGB

0–255

102

233

167

CMYK

0–100%

56.22%

28.33%

8.63%

RGB describes how #66E9A7 is represented with light on digital screens. This color combines red 102, green 233 and blue 167.

CMYK describes the same color using the four components commonly used in printing: cyan 56.22%, magenta 0%, yellow 28.33% and black 8.63%.

HSL values

H 149.77° S 74.86% L 65.69%

In the HSL color model, #66E9A7 has a hue of 149.77°, 74.86% saturation and 65.69% lightness. The sliders below show where this color sits across each of these three dimensions.

Color insight

#66E9A7 is a light, cool teal with moderate chroma.

Temperature: Cool
Lightness: Light
Chroma: Moderate

Color formats

Copy #66E9A7 in a format ready to use in CSS, design tools or other applications.

HEX #66E9A7

RGB rgb(102, 233, 167)

HSL hsl(149.77 74.86% 65.69%)

OKLCH oklch(0.843418 0.149894 158.6826)

CSS --color: #66E9A7;

Tints of #66E9A7

Tints are lighter variations of #66E9A7. They keep the character of the original color while moving progressively toward a lighter appearance.

#C3FFDC #9AFFC8 #79FBB8 #70F2AF #66E9A7

Shades of #66E9A7

Shades are darker variations of #66E9A7. Moving toward black increases visual depth while preserving the underlying hue of the color.

#66E9A7 #12AE70 #007046 #003821 #000803

Tones of #66E9A7

Tones reduce the chroma of #66E9A7, producing quieter and more muted variations without simply making the color lighter or darker.

#66E9A7 #83E3AF #9BDDB7 #AFD7BF #C0D0C6

Tonal range of #66E9A7

A continuous light-to-dark scale places #66E9A7 between its lighter tints and deeper shades.

#C3FFDC #9AFFC8 #79FBB8 #70F2AF #66E9A7 #12AE70 #007046 #003821 #000803

CSS color scale

Use this tonal range as reusable CSS custom properties.

:root {
    --color-100: #C3FFDC;
    --color-200: #9AFFC8;
    --color-300: #79FBB8;
    --color-400: #70F2AF;
    --color-500: #66E9A7;
    --color-600: #12AE70;
    --color-700: #007046;
    --color-800: #003821;
    --color-900: #000803;
}

Colors that go with #66E9A7

Color harmonies for #66E9A7 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.

#66E9A7 #FFADE6

Analogous

Neighboring hues that stay visually close to the original color.

#AEDE6F #66E9A7 #00EADE

Triadic

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

#66E9A7 #C0C7FF #FFB8A1

Split complementary

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

#66E9A7 #DFBAFF #FFB4C0

Tetradic

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

#66E9A7 #A2D1FF #FFADE6 #FFBD71

CSS gradients with #66E9A7

These gradients show how #66E9A7 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.

#66E9A7 #95EFBD #BBF5D3 #DEFAE9 #FFFFFF

background: linear-gradient(90deg, #66E9A7, #95EFBD, #BBF5D3, #DEFAE9, #FFFFFF);

Toward black

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

#66E9A7 #439E70 #235A3E #071E12 #000000

background: linear-gradient(90deg, #66E9A7, #439E70, #235A3E, #071E12, #000000);

Toward the complementary color

A gradient connecting the original color with its complementary hue.

#66E9A7 #12E6F6 #A2D1FF #CEC2FF #FFADE6

background: linear-gradient(90deg, #66E9A7, #12E6F6, #A2D1FF, #CEC2FF, #FFADE6);

Text contrast and accessibility

Contrast determines how clearly text can be distinguished from #66E9A7. The values below compare white and black text using WCAG contrast ratios.

White text

1.52:1

AA normal Fail AA large Fail AAA normal Fail

Black text

13.78:1

AA normal Pass AA large Pass AAA normal Pass

Recommended text color: #000000 . Relative luminance: 0.6389 .

Accessible CSS

Use the recommended text color with #66E9A7 as the background.

background-color: #66E9A7;
color: #000000;

Using #66E9A7 in design

See how #66E9A7 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

#66E9A7 used as a full background with its recommended text color.

Accent

Accent color

Use #66E9A7 to emphasize selected interface elements without filling the entire surface.

Example action

Tonal pair

#9AFFC8

#66E9A7

#003821

Colors similar to #66E9A7

These nearby colors are generated from perceptual variations of #66E9A7, including changes in lightness, chroma and hue.

#9AFFC8 #48CE8E #30EF9E #86E3B0 #80E694 #49EABA #8DF4A0 #35DDAD

Color vision simulation

The simulations below show mathematical approximations of how #66E9A7 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 #E7D9A3 Deuteranopia #D5CCAB Tritanopia #35E8D7

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, #66E9A7 can also be represented in perceptual and device-independent color spaces used in color science and modern design tools.

XYZ

X: 41.5898
Y: 63.8887
Z: 46.6918

CIELAB

L*: 83.9078
a*: -51.0428
b*: 21.4356

OKLab

L: 0.843418
a: -0.139638
b: 0.054492

OKLCH

L: 0.843418
C: 0.149894
H: 158.6826°