#31B6DB#31B6DB

#31B6DB is a light, vivid cyan. Relative luminance 0.392; OKLCH L 72.3% C 0.121 H 221.4°. Best body text is #000000 at 8.84:1 contrast (WCAG AA passes).

Color values

HEX	#31B6DB
RGB	rgb(49, 182, 219)
HSL	hsl(193, 70%, 53%)
HSV	hsv(193, 78%, 86%)
CMYK	cmyk(77.6%, 16.9%, 0%, 14.1%)
CIE-LAB	lab(68.91, -22.65, -28.61)
CIE-LCH	lch(68.91, 36.49, 231.63°)
OKLab	oklab(72.27% -0.0908 -0.0801)
OKLCH	oklch(72.27% 0.121 221.4)
XYZ	xyz(30.7754, 39.2196, 72.9522)
Luminance	0.3922 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31B6DB #DB5631

analogous

#31DBAB #31B6DB #3161DB

triadic

#31B6DB #DB31B6 #B6DB31

tetradic

#31B6DB #AB31DB #DB5631 #61DB31

square

#31B6DB #AB31DB #DB5631 #61DB31

split-complementary

#31B6DB #DB3161 #DBAB31

monochromatic

#16667C #1F90B0 #31B6DB #65C8E4 #99DBED

Accessibility & contrast

On white

2.37

#31B6DB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.84

#31B6DB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B6DB

8.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31B6DB	#FFFFFF	#000000	##000000
##31B6DB	1.00	2.37	8.84	8.84
#FFFFFF	2.37	1.00	21.00	21.00
#000000	8.84	21.00	1.00	1.00
##000000	8.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A0B1DD

Deuteranopia (green-blind)

#8AA1DB

Tritanopia (blue-blind)

#00C2C2

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #31b6db;
/* rgb */ color: rgb(49, 182, 219);
/* oklch */ color: oklch(72.3% 0.121 221.4);

Tailwind

colors: {
  custom: {
    50: '#83cce6',
    500: '#31b6db',
    950: '#000000',
  },
}

SCSS

$custom: #31b6db;
$custom-light: #83cce6;
$custom-dark: #000000;

JSON

{
  "hex": "#31b6db",
  "rgb": {
    "r": 49,
    "g": 182,
    "b": 219
  },
  "hsl": {
    "h": 193.059,
    "s": 70.248,
    "l": 52.549
  },
  "oklch": {
    "l": 0.72272,
    "c": 0.12112,
    "h": 221.4
  },
  "luminance": 0.39223
}

Semantic roles & 50–950 ramp

primary

#31B6DB

secondary

#D99F8F

accent

#623BED

background

#F8FCFE

surface

#F0F8FC

border

#CBD1D5

text

#0D1316

muted

#7D8284

Preview Lab

Preview with #31B6DB

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

Preview Lab → · Contrast checker → · Palette generator →