#31B4BB#31B4BB

#31B4BB is a light, moderate teal. Relative luminance 0.369; OKLCH L 70.5% C 0.109 H 200.4°. Best body text is #000000 at 8.38:1 contrast (WCAG AA passes).

Color values

HEX#31B4BB
RGBrgb(49, 180, 187)
HSLhsl(183, 58%, 46%)
HSVhsv(183, 74%, 73%)
CMYKcmyk(73.8%, 3.7%, 0%, 26.7%)
CIE-LABlab(67.19, -31.70, -13.63)
CIE-LCHlch(67.19, 34.51, 203.26°)
OKLaboklab(70.51% -0.1019 -0.0378)
OKLCHoklch(70.51% 0.109 200.4)
XYZxyz(26.5535, 36.8801, 52.7232)
Luminance0.3688 (WCAG relative)
Temperaturecool
Familyteal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#31B4BB #BB3831
analogous
#31BB7D #31B4BB #316FBB
triadic
#31B4BB #BB31B4 #B4BB31
tetradic
#31B4BB #7D31BB #BB3831 #6FBB31
square
#31B4BB #7D31BB #BB3831 #6FBB31
split-complementary
#31B4BB #BB316F #BB7D31
monochromatic
#18575A #24858B #31B4BB #56CDD3 #87DBE0

Accessibility & contrast

On white

2.51
#31B4BB on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.38
#31B4BB on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B4BB
8.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##31B4BB#FFFFFF#000000##000000
##31B4BB1.002.518.388.38
#FFFFFF2.511.0021.0021.00
#0000008.3821.001.001.00
##0000008.3821.001.001.00

Color blindness preview

Protanopia (red-blind)
#A6ACBC
Deuteranopia (green-blind)
#939DBC
Tritanopia (blue-blind)
#00BBB6
Achromatopsia (no color)
#A4A4A4

Design tokens & code

CSS
--color: #31b4bb;
/* rgb */ color: rgb(49, 180, 187);
/* oklch */ color: oklch(70.5% 0.109 200.4);
Tailwind
colors: {
  custom: {
    50: '#7fcbcf',
    500: '#31b4bb',
    950: '#000000',
  },
}
SCSS
$custom: #31b4bb;
$custom-light: #7fcbcf;
$custom-dark: #000000;
JSON
{
  "hex": "#31b4bb",
  "rgb": {
    "r": 49,
    "g": 180,
    "b": 187
  },
  "hsl": {
    "h": 183.043,
    "s": 58.475,
    "l": 46.275
  },
  "oklch": {
    "l": 0.70509,
    "c": 0.10867,
    "h": 200.4
  },
  "luminance": 0.36883
}

Semantic roles & 50–950 ramp

primary
#31B4BB
secondary
#C9827F
accent
#4E46E2
background
#F8FCFC
surface
#F0F8F9
border
#CBD1D2
text
#0C1313
muted
#7D8282

Preview Lab

Preview with #31B4BB

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

Preview Lab → · Contrast checker → · Palette generator →

#31B4BB Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva