#66F3EF#66F3EF

#66F3EF is a very light, vivid teal. Relative luminance 0.732; OKLCH L 88.7% C 0.121 H 192.6°. Best body text is #000000 at 15.63:1 contrast (WCAG AA passes).

Color values

HEX	#66F3EF
RGB	rgb(102, 243, 239)
HSL	hsl(178, 85%, 68%)
HSV	hsv(178, 58%, 95%)
CMYK	cmyk(58%, 0%, 1.6%, 4.7%)
CIE-LAB	lab(88.52, -38.71, -9.53)
CIE-LCH	lch(88.52, 39.86, 193.83°)
OKLab	oklab(88.66% -0.1185 -0.0265)
OKLCH	oklch(88.66% 0.121 192.6)
XYZ	xyz(53.1033, 73.1525, 92.9659)
Luminance	0.7316 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66F3EF #F3666A

analogous

#66F3A9 #66F3EF #66B0F3

triadic

#66F3EF #EF66F3 #F3EF66

tetradic

#66F3EF #A966F3 #F3666A #B0F366

square

#66F3EF #A966F3 #F3666A #B0F366

split-complementary

#66F3EF #F366B0 #F3A966

monochromatic

#10CEC9 #2DEFE9 #66F3EF #9FF7F5 #D7FCFB

Accessibility & contrast

On white

1.34

#66F3EF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.63

#66F3EF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66F3EF

15.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66F3EF	#FFFFFF	#000000	##000000
##66F3EF	1.00	1.34	15.63	15.63
#FFFFFF	1.34	1.00	21.00	21.00
#000000	15.63	21.00	1.00	1.00
##000000	15.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E5E8EF

Deuteranopia (green-blind)

#CFD7F0

Tritanopia (blue-blind)

#00F9F1

Achromatopsia (no color)

#DEDEDE

Design tokens & code

CSS

--color: #66f3ef;
/* rgb */ color: rgb(102, 243, 239);
/* oklch */ color: oklch(88.7% 0.121 192.6);

Tailwind

colors: {
  custom: {
    50: '#9ff7f4',
    500: '#66f3ef',
    950: '#000000',
  },
}

SCSS

$custom: #66f3ef;
$custom-light: #9ff7f4;
$custom-dark: #000000;

JSON

{
  "hex": "#66f3ef",
  "rgb": {
    "r": 102,
    "g": 243,
    "b": 239
  },
  "hsl": {
    "h": 178.298,
    "s": 85.455,
    "l": 67.647
  },
  "oklch": {
    "l": 0.8866,
    "c": 0.12147,
    "h": 192.6
  },
  "luminance": 0.73158
}

Semantic roles & 50–950 ramp

primary

#66F3EF

secondary

#CA3337

accent

#040AE2

background

#FDFFFF

surface

#F7FFFE

border

#D0D7D6

text

#101717

muted

#818585

Preview Lab

Preview with #66F3EF

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

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