#66E9DD#66E9DD

#66E9DD is a very light, moderate teal. Relative luminance 0.663; OKLCH L 85.8% C 0.117 H 187.0°. Best body text is #000000 at 14.26:1 contrast (WCAG AA passes).

Color values

HEX	#66E9DD
RGB	rgb(102, 233, 221)
HSL	hsl(175, 75%, 66%)
HSV	hsv(175, 56%, 91%)
CMYK	cmyk(56.2%, 0%, 5.2%, 8.6%)
CIE-LAB	lab(85.16, -38.79, -5.06)
CIE-LCH	lch(85.16, 39.12, 187.44°)
OKLab	oklab(85.77% -0.1158 -0.0143)
OKLCH	oklch(85.77% 0.117 187)
XYZ	xyz(47.6638, 66.3183, 78.6814)
Luminance	0.6632 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66E9DD #E96672

analogous

#66E99B #66E9DD #66B3E9

triadic

#66E9DD #DD66E9 #E9DD66

tetradic

#66E9DD #9B66E9 #E96672 #B3E966

square

#66E9DD #9B66E9 #E96672 #B3E966

split-complementary

#66E9DD #E966B3 #E99B66

monochromatic

#1BBAAB #30E1D1 #66E9DD #9CF1E9 #D1F8F5

Accessibility & contrast

On white

1.47

#66E9DD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.26

#66E9DD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66E9DD

14.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66E9DD	#FFFFFF	#000000	##000000
##66E9DD	1.00	1.47	14.26	14.26
#FFFFFF	1.47	1.00	21.00	21.00
#000000	14.26	21.00	1.00	1.00
##000000	14.26	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DEDEDD

Deuteranopia (green-blind)

#C9CEDE

Tritanopia (blue-blind)

#00EEE5

Achromatopsia (no color)

#D5D5D5

Design tokens & code

CSS

--color: #66e9dd;
/* rgb */ color: rgb(102, 233, 221);
/* oklch */ color: oklch(85.8% 0.117 187.0);

Tailwind

colors: {
  custom: {
    50: '#9df0e7',
    500: '#66e9dd',
    950: '#000000',
  },
}

SCSS

$custom: #66e9dd;
$custom-light: #9df0e7;
$custom-dark: #000000;

JSON

{
  "hex": "#66e9dd",
  "rgb": {
    "r": 102,
    "g": 233,
    "b": 221
  },
  "hsl": {
    "h": 174.504,
    "s": 74.857,
    "l": 65.686
  },
  "oklch": {
    "l": 0.85773,
    "c": 0.11667,
    "h": 187
  },
  "luminance": 0.66323
}

Semantic roles & 50–950 ramp

primary

#66E9DD

secondary

#B93A46

accent

#0E21D7

background

#FCFFFE

surface

#F6FEFC

border

#D0D6D5

text

#0F1616

muted

#808584

Preview Lab

Preview with #66E9DD

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →