#31B0D4#31B0D4

#31B0D4 is a light, moderate cyan. Relative luminance 0.365; OKLCH L 70.5% C 0.118 H 221.7°. Best body text is #000000 at 8.29:1 contrast (WCAG AA passes).

Color values

HEX	#31B0D4
RGB	rgb(49, 176, 212)
HSL	hsl(193, 65%, 51%)
HSV	hsv(193, 77%, 83%)
CMYK	cmyk(76.9%, 17%, 0%, 16.9%)
CIE-LAB	lab(66.87, -21.85, -27.92)
CIE-LCH	lch(66.87, 35.45, 231.95°)
OKLab	oklab(70.54% -0.0878 -0.0782)
OKLCH	oklch(70.54% 0.118 221.7)
XYZ	xyz(28.6706, 36.4536, 67.7998)
Luminance	0.3646 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31B0D4 #D45531

analogous

#31D4A7 #31B0D4 #315ED4

triadic

#31B0D4 #D431B0 #B0D431

tetradic

#31B0D4 #A731D4 #D45531 #5ED431

square

#31B0D4 #A731D4 #D45531 #5ED431

split-complementary

#31B0D4 #D4315E #D4A731

monochromatic

#185F73 #2388A5 #31B0D4 #64C3DF #96D7E9

Accessibility & contrast

On white

2.53

#31B0D4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.29

#31B0D4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B0D4

8.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31B0D4	#FFFFFF	#000000	##000000
##31B0D4	1.00	2.53	8.29	8.29
#FFFFFF	2.53	1.00	21.00	21.00
#000000	8.29	21.00	1.00	1.00
##000000	8.29	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9BACD6

Deuteranopia (green-blind)

#859CD4

Tritanopia (blue-blind)

#00BBBC

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #31b0d4;
/* rgb */ color: rgb(49, 176, 212);
/* oklch */ color: oklch(70.5% 0.118 221.7);

Tailwind

colors: {
  custom: {
    50: '#82c7e1',
    500: '#31b0d4',
    950: '#000000',
  },
}

SCSS

$custom: #31b0d4;
$custom-light: #82c7e1;
$custom-dark: #000000;

JSON

{
  "hex": "#31b0d4",
  "rgb": {
    "r": 49,
    "g": 176,
    "b": 212
  },
  "hsl": {
    "h": 193.252,
    "s": 65.462,
    "l": 51.176
  },
  "oklch": {
    "l": 0.70541,
    "c": 0.11758,
    "h": 221.7
  },
  "luminance": 0.36457
}

Semantic roles & 50–950 ramp

primary

#31B0D4

secondary

#D49C8C

accent

#653FE8

background

#F8FCFD

surface

#F0F8FB

border

#CBD1D4

text

#0C1315

muted

#7D8283

Preview Lab

Preview with #31B0D4

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

Preview Lab → · Contrast checker → · Palette generator →