#66E5EB#66E5EB

#66E5EB is a very light, moderate teal. Relative luminance 0.649; OKLCH L 85.3% C 0.112 H 199.5°. Best body text is #000000 at 13.97:1 contrast (WCAG AA passes).

Color values

HEX	#66E5EB
RGB	rgb(102, 229, 235)
HSL	hsl(183, 77%, 66%)
HSV	hsv(183, 57%, 92%)
CMYK	cmyk(56.6%, 2.6%, 0%, 7.8%)
CIE-LAB	lab(84.41, -33.28, -13.56)
CIE-LCH	lch(84.41, 35.94, 202.16°)
OKLab	oklab(85.3% -0.1058 -0.0375)
OKLCH	oklch(85.3% 0.112 199.5)
XYZ	xyz(48.4879, 64.8567, 88.5444)
Luminance	0.6486 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66E5EB #EB6C66

analogous

#66EBAE #66E5EB #66A2EB

triadic

#66E5EB #EB66E5 #E5EB66

tetradic

#66E5EB #AE66EB #EB6C66 #A2EB66

square

#66E5EB #AE66EB #EB6C66 #A2EB66

split-complementary

#66E5EB #EB66A2 #EBAE66

monochromatic

#19B6BE #30DCE4 #66E5EB #9CEEF2 #D2F7F9

Accessibility & contrast

On white

1.50

#66E5EB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.97

#66E5EB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66E5EB

13.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66E5EB	#FFFFFF	#000000	##000000
##66E5EB	1.00	1.50	13.97	13.97
#FFFFFF	1.50	1.00	21.00	21.00
#000000	13.97	21.00	1.00	1.00
##000000	13.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D6DCEC

Deuteranopia (green-blind)

#C1CCEC

Tritanopia (blue-blind)

#00ECE6

Achromatopsia (no color)

#D3D3D3

Design tokens & code

CSS

--color: #66e5eb;
/* rgb */ color: rgb(102, 229, 235);
/* oklch */ color: oklch(85.3% 0.112 199.5);

Tailwind

colors: {
  custom: {
    50: '#9eedf1',
    500: '#66e5eb',
    950: '#000000',
  },
}

SCSS

$custom: #66e5eb;
$custom-light: #9eedf1;
$custom-dark: #000000;

JSON

{
  "hex": "#66e5eb",
  "rgb": {
    "r": 102,
    "g": 229,
    "b": 235
  },
  "hsl": {
    "h": 182.707,
    "s": 76.879,
    "l": 66.078
  },
  "oklch": {
    "l": 0.853,
    "c": 0.11223,
    "h": 199.5
  },
  "luminance": 0.64862
}

Semantic roles & 50–950 ramp

primary

#66E5EB

secondary

#BD3F39

accent

#160CD9

background

#FCFFFF

surface

#F6FEFE

border

#D0D6D6

text

#101616

muted

#808585

Preview Lab

Preview with #66E5EB

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

Preview Lab → · Contrast checker → · Palette generator →