#31A4BF#31A4BF

#31A4BF is a light, moderate cyan. Relative luminance 0.310; OKLCH L 66.8% C 0.106 H 217.3°. Best body text is #000000 at 7.19:1 contrast (WCAG AA passes).

Color values

HEX#31A4BF
RGBrgb(49, 164, 191)
HSLhsl(191, 59%, 47%)
HSVhsv(191, 74%, 75%)
CMYKcmyk(74.3%, 14.1%, 0%, 25.1%)
CIE-LABlab(62.48, -22.48, -23.00)
CIE-LCHlch(62.48, 32.16, 225.65°)
OKLaboklab(66.75% -0.0844 -0.0642)
OKLCHoklch(66.75% 0.106 217.3)
XYZxyz(23.9421, 30.9626, 53.9947)
Luminance0.3096 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#31A4BF #BF4C31
analogous
#31BF93 #31A4BF #315DBF
triadic
#31A4BF #BF31A4 #A4BF31
tetradic
#31A4BF #9331BF #BF4C31 #5DBF31
square
#31A4BF #9331BF #BF4C31 #5DBF31
split-complementary
#31A4BF #BF315D #BF9331
monochromatic
#18505E #257A8E #31A4BF #59BDD4 #8AD0E1

Accessibility & contrast

On white

2.92
#31A4BF on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

7.19
#31A4BF on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31A4BF
7.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##31A4BF#FFFFFF#000000##000000
##31A4BF1.002.927.197.19
#FFFFFF2.921.0021.0021.00
#0000007.1921.001.001.00
##0000007.1921.001.001.00

Color blindness preview

Protanopia (red-blind)
#929FC0
Deuteranopia (green-blind)
#7F91BF
Tritanopia (blue-blind)
#00ADAC
Achromatopsia (no color)
#979797

Design tokens & code

CSS
--color: #31a4bf;
/* rgb */ color: rgb(49, 164, 191);
/* oklch */ color: oklch(66.8% 0.106 217.3);
Tailwind
colors: {
  custom: {
    50: '#7ebfd2',
    500: '#31a4bf',
    950: '#000000',
  },
}
SCSS
$custom: #31a4bf;
$custom-light: #7ebfd2;
$custom-dark: #000000;
JSON
{
  "hex": "#31a4bf",
  "rgb": {
    "r": 49,
    "g": 164,
    "b": 191
  },
  "hsl": {
    "h": 191.408,
    "s": 59.167,
    "l": 47.059
  },
  "oklch": {
    "l": 0.66752,
    "c": 0.10605,
    "h": 217.3
  },
  "luminance": 0.30965
}

Semantic roles & 50–950 ramp

primary
#31A4BF
secondary
#CB8F81
accent
#6345E2
background
#F8FBFC
surface
#F0F7F9
border
#CBD0D2
text
#0B1214
muted
#7C8182

Preview Lab

Preview with #31A4BF

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

Preview Lab → · Contrast checker → · Palette generator →

#31A4BF Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva