#31B1CC#31B1CC

#31B1CC is a light, moderate cyan. Relative luminance 0.365; OKLCH L 70.4% C 0.113 H 215.5°. Best body text is #000000 at 8.29:1 contrast (WCAG AA passes).

Color values

HEX#31B1CC
RGBrgb(49, 177, 204)
HSLhsl(190, 61%, 50%)
HSVhsv(190, 76%, 80%)
CMYKcmyk(76%, 13.2%, 0%, 20%)
CIE-LABlab(66.86, -24.95, -23.51)
CIE-LCHlch(66.86, 34.28, 223.30°)
OKLaboklab(70.44% -0.0919 -0.0656)
OKLCHoklch(70.44% 0.113 215.5)
XYZxyz(27.8832, 36.4535, 62.6817)
Luminance0.3646 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#31B1CC #CC4C31
analogous
#31CC9A #31B1CC #3163CC
triadic
#31B1CC #CC31B1 #B1CC31
tetradic
#31B1CC #9A31CC #CC4C31 #63CC31
square
#31B1CC #9A31CC #CC4C31 #63CC31
split-complementary
#31B1CC #CC3163 #CC9A31
monochromatic
#195B69 #25869B #31B1CC #61C4D9 #92D7E5

Accessibility & contrast

On white

2.53
#31B1CC on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.29
#31B1CC on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B1CC
8.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##31B1CC#FFFFFF#000000##000000
##31B1CC1.002.538.298.29
#FFFFFF2.531.0021.0021.00
#0000008.2921.001.001.00
##0000008.2921.001.001.00

Color blindness preview

Protanopia (red-blind)
#9EABCE
Deuteranopia (green-blind)
#899CCC
Tritanopia (blue-blind)
#00BBB9
Achromatopsia (no color)
#A3A3A3

Design tokens & code

CSS
--color: #31b1cc;
/* rgb */ color: rgb(49, 177, 204);
/* oklch */ color: oklch(70.4% 0.113 215.5);
Tailwind
colors: {
  custom: {
    50: '#81c8db',
    500: '#31b1cc',
    950: '#000000',
  },
}
SCSS
$custom: #31b1cc;
$custom-light: #81c8db;
$custom-dark: #000000;
JSON
{
  "hex": "#31b1cc",
  "rgb": {
    "r": 49,
    "g": 177,
    "b": 204
  },
  "hsl": {
    "h": 190.452,
    "s": 61.265,
    "l": 49.608
  },
  "oklch": {
    "l": 0.70442,
    "c": 0.11291,
    "h": 215.5
  },
  "luminance": 0.36457
}

Semantic roles & 50–950 ramp

primary
#31B1CC
secondary
#D09589
accent
#5F43E4
background
#F8FCFD
surface
#F0F8FB
border
#CBD1D4
text
#0C1315
muted
#7D8283

Preview Lab

Preview with #31B1CC

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

Preview Lab → · Contrast checker → · Palette generator →

#31B1CC Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva