#31A1BF#31A1BF

#31A1BF is a light, moderate cyan. Relative luminance 0.299; OKLCH L 66.0% C 0.106 H 219.9°. Best body text is #000000 at 6.98:1 contrast (WCAG AA passes).

Color values

HEX#31A1BF
RGBrgb(49, 161, 191)
HSLhsl(193, 59%, 47%)
HSVhsv(193, 74%, 75%)
CMYKcmyk(74.3%, 15.7%, 0%, 25.1%)
CIE-LABlab(61.57, -20.92, -24.39)
CIE-LCHlch(61.57, 32.14, 229.37°)
OKLaboklab(66.02% -0.0814 -0.0682)
OKLCHoklch(66.02% 0.106 219.9)
XYZxyz(23.4115, 29.9015, 53.8178)
Luminance0.2990 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#31A1BF #BF4F31
analogous
#31BF96 #31A1BF #315ABF
triadic
#31A1BF #BF31A1 #A1BF31
tetradic
#31A1BF #9631BF #BF4F31 #5ABF31
square
#31A1BF #9631BF #BF4F31 #5ABF31
split-complementary
#31A1BF #BF315A #BF9631
monochromatic
#184F5E #25788E #31A1BF #59BAD4 #8ACEE1

Accessibility & contrast

On white

3.01
#31A1BF on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

6.98
#31A1BF on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #31A1BF
6.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##31A1BF#FFFFFF#000000##000000
##31A1BF1.003.016.986.98
#FFFFFF3.011.0021.0021.00
#0000006.9821.001.001.00
##0000006.9821.001.001.00

Color blindness preview

Protanopia (red-blind)
#8F9DC1
Deuteranopia (green-blind)
#7B8FBF
Tritanopia (blue-blind)
#00ABAB
Achromatopsia (no color)
#959595

Design tokens & code

CSS
--color: #31a1bf;
/* rgb */ color: rgb(49, 161, 191);
/* oklch */ color: oklch(66.0% 0.106 219.9);
Tailwind
colors: {
  custom: {
    50: '#7ebdd2',
    500: '#31a1bf',
    950: '#000000',
  },
}
SCSS
$custom: #31a1bf;
$custom-light: #7ebdd2;
$custom-dark: #000000;
JSON
{
  "hex": "#31a1bf",
  "rgb": {
    "r": 49,
    "g": 161,
    "b": 191
  },
  "hsl": {
    "h": 192.676,
    "s": 59.167,
    "l": 47.059
  },
  "oklch": {
    "l": 0.66023,
    "c": 0.10621,
    "h": 219.9
  },
  "luminance": 0.29904
}

Semantic roles & 50–950 ramp

primary
#31A1BF
secondary
#CB9181
accent
#6745E2
background
#F8FBFC
surface
#EFF6F9
border
#CAD0D2
text
#0B1214
muted
#7C8182

Preview Lab

Preview with #31A1BF

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

Preview Lab → · Contrast checker → · Palette generator →

#31A1BF Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva