#39B1CD#39B1CD

#39B1CD is a light, moderate cyan. Relative luminance 0.367; OKLCH L 70.7% C 0.110 H 216.9°. Best body text is #000000 at 8.34:1 contrast (WCAG AA passes).

Color values

HEX#39B1CD
RGBrgb(57, 177, 205)
HSLhsl(191, 60%, 51%)
HSVhsv(191, 72%, 80%)
CMYKcmyk(72.2%, 13.7%, 0%, 19.6%)
CIE-LABlab(67.07, -23.68, -23.74)
CIE-LCHlch(67.07, 33.52, 225.07°)
OKLaboklab(70.66% -0.0882 -0.0662)
OKLCHoklch(70.66% 0.11 216.9)
XYZxyz(28.4243, 36.7186, 63.3351)
Luminance0.3672 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#39B1CD #CD5539
analogous
#39CD9F #39B1CD #3967CD
triadic
#39B1CD #CD39B1 #B1CD39
tetradic
#39B1CD #9F39CD #CD5539 #67CD39
square
#39B1CD #9F39CD #CD5539 #67CD39
split-complementary
#39B1CD #CD3967 #CD9F39
monochromatic
#1C606F #288AA0 #39B1CD #6AC4D9 #9BD7E6

Accessibility & contrast

On white

2.52
#39B1CD on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.34
#39B1CD on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #39B1CD
8.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##39B1CD#FFFFFF#000000##000000
##39B1CD1.002.528.348.34
#FFFFFF2.521.0021.0021.00
#0000008.3421.001.001.00
##0000008.3421.001.001.00

Color blindness preview

Protanopia (red-blind)
#9EACCF
Deuteranopia (green-blind)
#8A9DCD
Tritanopia (blue-blind)
#00BBBA
Achromatopsia (no color)
#A3A3A3

Design tokens & code

CSS
--color: #39b1cd;
/* rgb */ color: rgb(57, 177, 205);
/* oklch */ color: oklch(70.7% 0.110 216.9);
Tailwind
colors: {
  custom: {
    50: '#84c8dc',
    500: '#39b1cd',
    950: '#000000',
  },
}
SCSS
$custom: #39b1cd;
$custom-light: #84c8dc;
$custom-dark: #000000;
JSON
{
  "hex": "#39b1cd",
  "rgb": {
    "r": 57,
    "g": 177,
    "b": 205
  },
  "hsl": {
    "h": 191.351,
    "s": 59.677,
    "l": 51.373
  },
  "oklch": {
    "l": 0.70663,
    "c": 0.1103,
    "h": 216.9
  },
  "luminance": 0.36722
}

Semantic roles & 50–950 ramp

primary
#39B1CD
secondary
#D29D90
accent
#6345E3
background
#F8FCFD
surface
#F0F8FB
border
#CBD1D4
text
#0C1315
muted
#7D8283

Preview Lab

Preview with #39B1CD

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

Preview Lab → · Contrast checker → · Palette generator →

#39B1CD Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva