#66E4DD#66E4DD

#66E4DD is a very light, moderate teal. Relative luminance 0.635; OKLCH L 84.6% C 0.112 H 190.3°. Best body text is #000000 at 13.71:1 contrast (WCAG AA passes).

Color values

HEX	#66E4DD
RGB	rgb(102, 228, 221)
HSL	hsl(177, 70%, 65%)
HSV	hsv(177, 55%, 89%)
CMYK	cmyk(55.3%, 0%, 3.1%, 10.6%)
CIE-LAB	lab(83.72, -36.50, -7.19)
CIE-LCH	lch(83.72, 37.20, 191.14°)
OKLab	oklab(84.61% -0.1105 -0.02)
OKLCH	oklch(84.61% 0.112 190.3)
XYZ	xyz(46.2684, 63.5275, 78.2163)
Luminance	0.6353 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66E4DD #E4666D

analogous

#66E49E #66E4DD #66ACE4

triadic

#66E4DD #DD66E4 #E4DD66

tetradic

#66E4DD #9E66E4 #E4666D #ACE466

square

#66E4DD #9E66E4 #E4666D #ACE466

split-complementary

#66E4DD #E466AC #E49E66

monochromatic

#1FB0A8 #32DBD1 #66E4DD #9AEDE9 #CEF6F4

Accessibility & contrast

On white

1.53

#66E4DD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.71

#66E4DD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66E4DD

13.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66E4DD	#FFFFFF	#000000	##000000
##66E4DD	1.00	1.53	13.71	13.71
#FFFFFF	1.53	1.00	21.00	21.00
#000000	13.71	21.00	1.00	1.00
##000000	13.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D8D9DD

Deuteranopia (green-blind)

#C4CADE

Tritanopia (blue-blind)

#00E9E2

Achromatopsia (no color)

#D1D1D1

Design tokens & code

CSS

--color: #66e4dd;
/* rgb */ color: rgb(102, 228, 221);
/* oklch */ color: oklch(84.6% 0.112 190.3);

Tailwind

colors: {
  custom: {
    50: '#9dede7',
    500: '#66e4dd',
    950: '#000000',
  },
}

SCSS

$custom: #66e4dd;
$custom-light: #9dede7;
$custom-dark: #000000;

JSON

{
  "hex": "#66e4dd",
  "rgb": {
    "r": 102,
    "g": 228,
    "b": 221
  },
  "hsl": {
    "h": 176.667,
    "s": 70,
    "l": 64.706
  },
  "oklch": {
    "l": 0.84608,
    "c": 0.11234,
    "h": 190.3
  },
  "luminance": 0.63532
}

Semantic roles & 50–950 ramp

primary

#66E4DD

secondary

#B13D43

accent

#141ED2

background

#FCFFFE

surface

#F6FEFC

border

#D0D6D5

text

#0F1616

muted

#808584

Preview Lab

Preview with #66E4DD

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

Preview Lab → · Contrast checker → · Palette generator →