#66E4EB#66E4EB

#66E4EB is a very light, moderate teal. Relative luminance 0.643; OKLCH L 85.1% C 0.112 H 200.3°. Best body text is #000000 at 13.86:1 contrast (WCAG AA passes).

Color values

HEX	#66E4EB
RGB	rgb(102, 228, 235)
HSL	hsl(183, 77%, 66%)
HSV	hsv(183, 57%, 92%)
CMYK	cmyk(56.6%, 3%, 0%, 7.8%)
CIE-LAB	lab(84.12, -32.81, -13.99)
CIE-LCH	lch(84.12, 35.67, 203.09°)
OKLab	oklab(85.07% -0.1047 -0.0387)
OKLCH	oklch(85.07% 0.112 200.3)
XYZ	xyz(48.2120, 64.3049, 88.4525)
Luminance	0.6431 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66E4EB #EB6D66

analogous

#66EBAF #66E4EB #66A1EB

triadic

#66E4EB #EB66E4 #E4EB66

tetradic

#66E4EB #AF66EB #EB6D66 #A1EB66

square

#66E4EB #AF66EB #EB6D66 #A1EB66

split-complementary

#66E4EB #EB66A1 #EBAF66

monochromatic

#19B5BE #30DAE4 #66E4EB #9CEEF2 #D2F7F9

Accessibility & contrast

On white

1.51

#66E4EB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.86

#66E4EB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66E4EB

13.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66E4EB	#FFFFFF	#000000	##000000
##66E4EB	1.00	1.51	13.86	13.86
#FFFFFF	1.51	1.00	21.00	21.00
#000000	13.86	21.00	1.00	1.00
##000000	13.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D5DBEC

Deuteranopia (green-blind)

#C0CBEC

Tritanopia (blue-blind)

#00EBE6

Achromatopsia (no color)

#D2D2D2

Design tokens & code

CSS

--color: #66e4eb;
/* rgb */ color: rgb(102, 228, 235);
/* oklch */ color: oklch(85.1% 0.112 200.3);

Tailwind

colors: {
  custom: {
    50: '#9eedf1',
    500: '#66e4eb',
    950: '#000000',
  },
}

SCSS

$custom: #66e4eb;
$custom-light: #9eedf1;
$custom-dark: #000000;

JSON

{
  "hex": "#66e4eb",
  "rgb": {
    "r": 102,
    "g": 228,
    "b": 235
  },
  "hsl": {
    "h": 183.158,
    "s": 76.879,
    "l": 66.078
  },
  "oklch": {
    "l": 0.8507,
    "c": 0.11166,
    "h": 200.3
  },
  "luminance": 0.6431
}

Semantic roles & 50–950 ramp

primary

#66E4EB

secondary

#BD4039

accent

#170CD9

background

#FCFFFF

surface

#F6FEFE

border

#D0D6D6

text

#101616

muted

#808585

Preview Lab

Preview with #66E4EB

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

Preview Lab → · Contrast checker → · Palette generator →