#66E5DD#66E5DD

#66E5DD is a very light, moderate teal. Relative luminance 0.641; OKLCH L 84.8% C 0.113 H 189.6°. Best body text is #000000 at 13.82:1 contrast (WCAG AA passes).

Color values

HEX	#66E5DD
RGB	rgb(102, 229, 221)
HSL	hsl(176, 71%, 65%)
HSV	hsv(176, 55%, 90%)
CMYK	cmyk(55.5%, 0%, 3.5%, 10.2%)
CIE-LAB	lab(84.01, -36.96, -6.76)
CIE-LCH	lch(84.01, 37.57, 190.37°)
OKLab	oklab(84.84% -0.1116 -0.0189)
OKLCH	oklch(84.84% 0.113 189.6)
XYZ	xyz(46.5443, 64.0793, 78.3083)
Luminance	0.6408 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66E5DD #E5666E

analogous

#66E59D #66E5DD #66AEE5

triadic

#66E5DD #DD66E5 #E5DD66

tetradic

#66E5DD #9D66E5 #E5666E #AEE566

square

#66E5DD #9D66E5 #E5666E #AEE566

split-complementary

#66E5DD #E566AE #E59D66

monochromatic

#1EB2A9 #32DCD1 #66E5DD #9AEEE9 #CFF7F4

Accessibility & contrast

On white

1.52

#66E5DD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.82

#66E5DD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66E5DD

13.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66E5DD	#FFFFFF	#000000	##000000
##66E5DD	1.00	1.52	13.82	13.82
#FFFFFF	1.52	1.00	21.00	21.00
#000000	13.82	21.00	1.00	1.00
##000000	13.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D9DADD

Deuteranopia (green-blind)

#C5CBDE

Tritanopia (blue-blind)

#00EAE2

Achromatopsia (no color)

#D1D1D1

Design tokens & code

CSS

--color: #66e5dd;
/* rgb */ color: rgb(102, 229, 221);
/* oklch */ color: oklch(84.8% 0.113 189.6);

Tailwind

colors: {
  custom: {
    50: '#9dede7',
    500: '#66e5dd',
    950: '#000000',
  },
}

SCSS

$custom: #66e5dd;
$custom-light: #9dede7;
$custom-dark: #000000;

JSON

{
  "hex": "#66e5dd",
  "rgb": {
    "r": 102,
    "g": 229,
    "b": 221
  },
  "hsl": {
    "h": 176.22,
    "s": 70.95,
    "l": 64.902
  },
  "oklch": {
    "l": 0.84841,
    "c": 0.11318,
    "h": 189.6
  },
  "luminance": 0.64084
}

Semantic roles & 50–950 ramp

primary

#66E5DD

secondary

#B33C44

accent

#131FD3

background

#FCFFFE

surface

#F6FEFC

border

#D0D6D5

text

#0F1616

muted

#808584

Preview Lab

Preview with #66E5DD

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

Preview Lab → · Contrast checker → · Palette generator →