#66EFDD#66EFDD

#66EFDD is a very light, vivid teal. Relative luminance 0.698; OKLCH L 87.2% C 0.122 H 183.5°. Best body text is #000000 at 14.96:1 contrast (WCAG AA passes).

Color values

HEX	#66EFDD
RGB	rgb(102, 239, 221)
HSL	hsl(172, 81%, 67%)
HSV	hsv(172, 57%, 94%)
CMYK	cmyk(57.3%, 0%, 7.5%, 6.3%)
CIE-LAB	lab(86.89, -41.49, -2.52)
CIE-LCH	lch(86.89, 41.57, 183.48°)
OKLab	oklab(87.17% -0.122 -0.0075)
OKLCH	oklch(87.17% 0.122 183.5)
XYZ	xyz(49.3913, 69.7733, 79.2573)
Luminance	0.6978 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66EFDD #EF6678

analogous

#66EF99 #66EFDD #66BDEF

triadic

#66EFDD #DD66EF #EFDD66

tetradic

#66EFDD #9966EF #EF6678 #BDEF66

square

#66EFDD #9966EF #EF6678 #BDEF66

split-complementary

#66EFDD #EF66BD #EF9966

monochromatic

#15C6AF #2FE9D1 #66EFDD #9DF5E9 #D5FBF6

Accessibility & contrast

On white

1.40

#66EFDD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.96

#66EFDD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66EFDD

14.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66EFDD	#FFFFFF	#000000	##000000
##66EFDD	1.00	1.40	14.96	14.96
#FFFFFF	1.40	1.00	21.00	21.00
#000000	14.96	21.00	1.00	1.00
##000000	14.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E5E3DC

Deuteranopia (green-blind)

#CFD3DF

Tritanopia (blue-blind)

#00F3E9

Achromatopsia (no color)

#DADADA

Design tokens & code

CSS

--color: #66efdd;
/* rgb */ color: rgb(102, 239, 221);
/* oklch */ color: oklch(87.2% 0.122 183.5);

Tailwind

colors: {
  custom: {
    50: '#9ef5e7',
    500: '#66efdd',
    950: '#000000',
  },
}

SCSS

$custom: #66efdd;
$custom-light: #9ef5e7;
$custom-dark: #000000;

JSON

{
  "hex": "#66efdd",
  "rgb": {
    "r": 102,
    "g": 239,
    "b": 221
  },
  "hsl": {
    "h": 172.117,
    "s": 81.065,
    "l": 66.863
  },
  "oklch": {
    "l": 0.87173,
    "c": 0.12227,
    "h": 183.5
  },
  "luminance": 0.69778
}

Semantic roles & 50–950 ramp

primary

#66EFDD

secondary

#C33648

accent

#0824DD

background

#FCFFFE

surface

#F6FEFC

border

#D0D6D5

text

#101716

muted

#808584

Preview Lab

Preview with #66EFDD

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

Preview Lab → · Contrast checker → · Palette generator →