#66F3E9#66F3E9

#66F3E9 is a very light, vivid teal. Relative luminance 0.728; OKLCH L 88.5% C 0.122 H 188.7°. Best body text is #000000 at 15.56:1 contrast (WCAG AA passes).

Color values

HEX	#66F3E9
RGB	rgb(102, 243, 233)
HSL	hsl(176, 85%, 68%)
HSV	hsv(176, 58%, 95%)
CMYK	cmyk(58%, 0%, 4.1%, 4.7%)
CIE-LAB	lab(88.35, -40.26, -6.64)
CIE-LCH	lch(88.35, 40.80, 189.37°)
OKLab	oklab(88.47% -0.1211 -0.0186)
OKLCH	oklch(88.47% 0.122 188.7)
XYZ	xyz(52.2316, 72.8038, 88.3749)
Luminance	0.7281 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66F3E9 #F36670

analogous

#66F3A3 #66F3E9 #66B6F3

triadic

#66F3E9 #E966F3 #F3E966

tetradic

#66F3E9 #A366F3 #F36670 #B6F366

square

#66F3E9 #A366F3 #F36670 #B6F366

split-complementary

#66F3E9 #F366B6 #F3A366

monochromatic

#10CEC1 #2DEFE1 #66F3E9 #9FF7F1 #D7FCF9

Accessibility & contrast

On white

1.35

#66F3E9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.56

#66F3E9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66F3E9

15.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66F3E9	#FFFFFF	#000000	##000000
##66F3E9	1.00	1.35	15.56	15.56
#FFFFFF	1.35	1.00	21.00	21.00
#000000	15.56	21.00	1.00	1.00
##000000	15.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E7E7E9

Deuteranopia (green-blind)

#D1D7EA

Tritanopia (blue-blind)

#00F9F0

Achromatopsia (no color)

#DEDEDE

Design tokens & code

CSS

--color: #66f3e9;
/* rgb */ color: rgb(102, 243, 233);
/* oklch */ color: oklch(88.5% 0.122 188.7);

Tailwind

colors: {
  custom: {
    50: '#9ff7f0',
    500: '#66f3e9',
    950: '#000000',
  },
}

SCSS

$custom: #66f3e9;
$custom-light: #9ff7f0;
$custom-dark: #000000;

JSON

{
  "hex": "#66f3e9",
  "rgb": {
    "r": 102,
    "g": 243,
    "b": 233
  },
  "hsl": {
    "h": 175.745,
    "s": 85.455,
    "l": 67.647
  },
  "oklch": {
    "l": 0.8847,
    "c": 0.12248,
    "h": 188.7
  },
  "luminance": 0.72809
}

Semantic roles & 50–950 ramp

primary

#66F3E9

secondary

#CA333E

accent

#0413E2

background

#FDFFFF

surface

#F7FFFE

border

#D0D7D6

text

#101716

muted

#818585

Preview Lab

Preview with #66F3E9

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

Preview Lab → · Contrast checker → · Palette generator →