#66BBBF#66BBBF

#66BBBF is a light, moderate teal. Relative luminance 0.421; OKLCH L 74.0% C 0.083 H 199.5°. Best body text is #000000 at 9.43:1 contrast (WCAG AA passes).

Color values

HEX#66BBBF
RGBrgb(102, 187, 191)
HSLhsl(183, 41%, 57%)
HSVhsv(183, 47%, 75%)
CMYKcmyk(46.6%, 2.1%, 0%, 25.1%)
CIE-LABlab(70.96, -24.64, -10.02)
CIE-LCHlch(70.96, 26.60, 202.13°)
OKLaboklab(74.03% -0.0779 -0.0276)
OKLCHoklch(74.03% 0.083 199.5)
XYZxyz(32.6501, 42.1243, 55.6904)
Luminance0.4213 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#66BBBF #BF6A66
analogous
#66BF97 #66BBBF #668EBF
triadic
#66BBBF #BF66BB #BBBF66
tetradic
#66BBBF #9766BF #BF6A66 #8EBF66
square
#66BBBF #9766BF #BF6A66 #8EBF66
split-complementary
#66BBBF #BF668E #BF9766
monochromatic
#327578 #449FA3 #66BBBF #91CED1 #BCE1E3

Accessibility & contrast

On white

2.23
#66BBBF on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

9.43
#66BBBF on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BBBF
9.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##66BBBF#FFFFFF#000000##000000
##66BBBF1.002.239.439.43
#FFFFFF2.231.0021.0021.00
#0000009.4321.001.001.00
##0000009.4321.001.001.00

Color blindness preview

Protanopia (red-blind)
#B0B4BF
Deuteranopia (green-blind)
#A1A9C0
Tritanopia (blue-blind)
#35C0BC
Achromatopsia (no color)
#AEAEAE

Design tokens & code

CSS
--color: #66bbbf;
/* rgb */ color: rgb(102, 187, 191);
/* oklch */ color: oklch(74.0% 0.083 199.5);
Tailwind
colors: {
  custom: {
    50: '#98cfd2',
    500: '#66bbbf',
    950: '#000000',
  },
}
SCSS
$custom: #66bbbf;
$custom-light: #98cfd2;
$custom-dark: #000000;
JSON
{
  "hex": "#66bbbf",
  "rgb": {
    "r": 102,
    "g": 187,
    "b": 191
  },
  "hsl": {
    "h": 182.697,
    "s": 41.014,
    "l": 57.451
  },
  "oklch": {
    "l": 0.7403,
    "c": 0.0827,
    "h": 199.5
  },
  "luminance": 0.42127
}

Semantic roles & 50–950 ramp

primary
#66BBBF
secondary
#D2B0AE
accent
#5C57D1
background
#F9FCFC
surface
#F2F9F9
border
#CCD2D2
text
#0E1414
muted
#7E8282

Preview Lab

Preview with #66BBBF

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

Preview Lab → · Contrast checker → · Palette generator →

#66BBBF Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva