#66EDD9#66EDD9

#66EDD9 is a very light, vivid teal. Relative luminance 0.684; OKLCH L 86.6% C 0.122 H 182.1°. Best body text is #000000 at 14.68:1 contrast (WCAG AA passes).

Color values

HEX	#66EDD9
RGB	rgb(102, 237, 217)
HSL	hsl(171, 79%, 66%)
HSV	hsv(171, 57%, 93%)
CMYK	cmyk(57%, 0%, 8.4%, 7.1%)
CIE-LAB	lab(86.21, -41.59, -1.42)
CIE-LCH	lch(86.21, 41.61, 181.96°)
OKLab	oklab(86.59% -0.1217 -0.0045)
OKLCH	oklch(86.59% 0.122 182.1)
XYZ	xyz(48.2825, 68.3981, 76.2899)
Luminance	0.6840 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66EDD9 #ED667A

analogous

#66ED96 #66EDD9 #66BEED

triadic

#66EDD9 #D966ED #EDD966

tetradic

#66EDD9 #9666ED #ED667A #BEED66

square

#66EDD9 #9666ED #ED667A #BEED66

split-complementary

#66EDD9 #ED66BE #ED9666

monochromatic

#17C2A8 #2FE7CB #66EDD9 #9DF3E7 #D4FAF4

Accessibility & contrast

On white

1.43

#66EDD9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.68

#66EDD9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66EDD9

14.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66EDD9	#FFFFFF	#000000	##000000
##66EDD9	1.00	1.43	14.68	14.68
#FFFFFF	1.43	1.00	21.00	21.00
#000000	14.68	21.00	1.00	1.00
##000000	14.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E3E1D8

Deuteranopia (green-blind)

#CED1DB

Tritanopia (blue-blind)

#00F1E7

Achromatopsia (no color)

#D8D8D8

Design tokens & code

CSS

--color: #66edd9;
/* rgb */ color: rgb(102, 237, 217);
/* oklch */ color: oklch(86.6% 0.122 182.1);

Tailwind

colors: {
  custom: {
    50: '#9ef3e4',
    500: '#66edd9',
    950: '#000000',
  },
}

SCSS

$custom: #66edd9;
$custom-light: #9ef3e4;
$custom-dark: #000000;

JSON

{
  "hex": "#66edd9",
  "rgb": {
    "r": 102,
    "g": 237,
    "b": 217
  },
  "hsl": {
    "h": 171.111,
    "s": 78.947,
    "l": 66.471
  },
  "oklch": {
    "l": 0.86586,
    "c": 0.12176,
    "h": 182.1
  },
  "luminance": 0.68403
}

Semantic roles & 50–950 ramp

primary

#66EDD9

secondary

#C0374C

accent

#0A29DB

background

#FCFFFE

surface

#F6FEFC

border

#D0D6D5

text

#0F1715

muted

#808584

Preview Lab

Preview with #66EDD9

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

Preview Lab → · Contrast checker → · Palette generator →