#66ECD9#66ECD9

#66ECD9 is a very light, vivid teal. Relative luminance 0.678; OKLCH L 86.4% C 0.121 H 182.7°. Best body text is #000000 at 14.57:1 contrast (WCAG AA passes).

Color values

HEX	#66ECD9
RGB	rgb(102, 236, 217)
HSL	hsl(171, 78%, 66%)
HSV	hsv(171, 57%, 93%)
CMYK	cmyk(56.8%, 0%, 8.1%, 7.5%)
CIE-LAB	lab(85.92, -41.14, -1.84)
CIE-LCH	lch(85.92, 41.18, 182.57°)
OKLab	oklab(86.35% -0.1206 -0.0056)
OKLCH	oklch(86.35% 0.121 182.7)
XYZ	xyz(47.9937, 67.8207, 76.1936)
Luminance	0.6783 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66ECD9 #EC6679

analogous

#66EC96 #66ECD9 #66BCEC

triadic

#66ECD9 #D966EC #ECD966

tetradic

#66ECD9 #9666EC #EC6679 #BCEC66

square

#66ECD9 #9666EC #EC6679 #BCEC66

split-complementary

#66ECD9 #EC66BC #EC9666

monochromatic

#18C0A8 #30E5CB #66ECD9 #9CF3E7 #D3FAF4

Accessibility & contrast

On white

1.44

#66ECD9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.57

#66ECD9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66ECD9

14.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66ECD9	#FFFFFF	#000000	##000000
##66ECD9	1.00	1.44	14.57	14.57
#FFFFFF	1.44	1.00	21.00	21.00
#000000	14.57	21.00	1.00	1.00
##000000	14.57	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E2E0D8

Deuteranopia (green-blind)

#CDD1DB

Tritanopia (blue-blind)

#00F0E6

Achromatopsia (no color)

#D7D7D7

Design tokens & code

CSS

--color: #66ecd9;
/* rgb */ color: rgb(102, 236, 217);
/* oklch */ color: oklch(86.4% 0.121 182.7);

Tailwind

colors: {
  custom: {
    50: '#9df2e4',
    500: '#66ecd9',
    950: '#000000',
  },
}

SCSS

$custom: #66ecd9;
$custom-light: #9df2e4;
$custom-dark: #000000;

JSON

{
  "hex": "#66ecd9",
  "rgb": {
    "r": 102,
    "g": 236,
    "b": 217
  },
  "hsl": {
    "h": 171.493,
    "s": 77.907,
    "l": 66.275
  },
  "oklch": {
    "l": 0.86352,
    "c": 0.12077,
    "h": 182.7
  },
  "luminance": 0.67825
}

Semantic roles & 50–950 ramp

primary

#66ECD9

secondary

#BE384B

accent

#0B29DA

background

#FCFFFE

surface

#F6FEFC

border

#D0D6D5

text

#0F1715

muted

#808584

Preview Lab

Preview with #66ECD9

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

Preview Lab → · Contrast checker → · Palette generator →