#31A3D3#31A3D3

#31A3D3 is a light, vivid cyan. Relative luminance 0.316; OKLCH L 67.4% C 0.121 H 231.1°. Best body text is #000000 at 7.31:1 contrast (WCAG AA passes).

Color values

HEX	#31A3D3
RGB	rgb(49, 163, 211)
HSL	hsl(198, 65%, 51%)
HSV	hsv(198, 77%, 83%)
CMYK	cmyk(76.8%, 22.7%, 0%, 17.3%)
CIE-LAB	lab(62.97, -15.31, -33.39)
CIE-LCH	lch(62.97, 36.74, 245.36°)
OKLab	oklab(67.41% -0.0759 -0.094)
OKLCH	oklch(67.41% 0.121 231.1)
XYZ	xyz(26.1169, 31.5473, 66.3282)
Luminance	0.3155 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31A3D3 #D36131

analogous

#31D3B2 #31A3D3 #3152D3

triadic

#31A3D3 #D331A3 #A3D331

tetradic

#31A3D3 #B231D3 #D36131 #52D331

square

#31A3D3 #B231D3 #D36131 #52D331

split-complementary

#31A3D3 #D33152 #D3B231

monochromatic

#185771 #237EA4 #31A3D3 #63BADE #96D0E9

Accessibility & contrast

On white

2.87

#31A3D3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.31

#31A3D3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31A3D3

7.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31A3D3	#FFFFFF	#000000	##000000
##31A3D3	1.00	2.87	7.31	7.31
#FFFFFF	2.87	1.00	21.00	21.00
#000000	7.31	21.00	1.00	1.00
##000000	7.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8BA1D5

Deuteranopia (green-blind)

#7592D2

Tritanopia (blue-blind)

#00B0B3

Achromatopsia (no color)

#989898

Design tokens & code

CSS

--color: #31a3d3;
/* rgb */ color: rgb(49, 163, 211);
/* oklch */ color: oklch(67.4% 0.121 231.1);

Tailwind

colors: {
  custom: {
    50: '#81bee0',
    500: '#31a3d3',
    950: '#000000',
  },
}

SCSS

$custom: #31a3d3;
$custom-light: #81bee0;
$custom-dark: #000000;

JSON

{
  "hex": "#31a3d3",
  "rgb": {
    "r": 49,
    "g": 163,
    "b": 211
  },
  "hsl": {
    "h": 197.778,
    "s": 64.8,
    "l": 50.98
  },
  "oklch": {
    "l": 0.67406,
    "c": 0.12082,
    "h": 231.1
  },
  "luminance": 0.31551
}

Semantic roles & 50–950 ramp

primary

#31A3D3

secondary

#D4A18C

accent

#7240E8

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0C1215

muted

#7D8183

Preview Lab

Preview with #31A3D3

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

Preview Lab → · Contrast checker → · Palette generator →