#66E9DC#66E9DC

#66E9DC is a very light, moderate teal. Relative luminance 0.663; OKLCH L 85.7% C 0.117 H 186.4°. Best body text is #000000 at 14.25:1 contrast (WCAG AA passes).

Color values

HEX	#66E9DC
RGB	rgb(102, 233, 220)
HSL	hsl(174, 75%, 66%)
HSV	hsv(174, 56%, 91%)
CMYK	cmyk(56.2%, 0%, 5.6%, 8.6%)
CIE-LAB	lab(85.13, -39.04, -4.58)
CIE-LCH	lch(85.13, 39.31, 186.68°)
OKLab	oklab(85.74% -0.1162 -0.013)
OKLCH	oklch(85.74% 0.117 186.4)
XYZ	xyz(47.5310, 66.2652, 77.9819)
Luminance	0.6627 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66E9DC #E96673

analogous

#66E99A #66E9DC #66B4E9

triadic

#66E9DC #DC66E9 #E9DC66

tetradic

#66E9DC #9A66E9 #E96673 #B4E966

square

#66E9DC #9A66E9 #E96673 #B4E966

split-complementary

#66E9DC #E966B4 #E99A66

monochromatic

#1BBAAA #30E1D0 #66E9DC #9CF1E8 #D1F8F4

Accessibility & contrast

On white

1.47

#66E9DC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.25

#66E9DC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66E9DC

14.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66E9DC	#FFFFFF	#000000	##000000
##66E9DC	1.00	1.47	14.25	14.25
#FFFFFF	1.47	1.00	21.00	21.00
#000000	14.25	21.00	1.00	1.00
##000000	14.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DEDEDC

Deuteranopia (green-blind)

#C9CEDE

Tritanopia (blue-blind)

#00EEE5

Achromatopsia (no color)

#D5D5D5

Design tokens & code

CSS

--color: #66e9dc;
/* rgb */ color: rgb(102, 233, 220);
/* oklch */ color: oklch(85.7% 0.117 186.4);

Tailwind

colors: {
  custom: {
    50: '#9df0e6',
    500: '#66e9dc',
    950: '#000000',
  },
}

SCSS

$custom: #66e9dc;
$custom-light: #9df0e6;
$custom-dark: #000000;

JSON

{
  "hex": "#66e9dc",
  "rgb": {
    "r": 102,
    "g": 233,
    "b": 220
  },
  "hsl": {
    "h": 174.046,
    "s": 74.857,
    "l": 65.686
  },
  "oklch": {
    "l": 0.85742,
    "c": 0.11693,
    "h": 186.4
  },
  "luminance": 0.6627
}

Semantic roles & 50–950 ramp

primary

#66E9DC

secondary

#B93A47

accent

#0E22D7

background

#FCFFFE

surface

#F6FEFC

border

#D0D6D5

text

#0F1616

muted

#808584

Preview Lab

Preview with #66E9DC

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

Preview Lab → · Contrast checker → · Palette generator →