#31B0DB#31B0DB

#31B0DB is a light, vivid cyan. Relative luminance 0.368; OKLCH L 70.9% C 0.122 H 225.9°. Best body text is #000000 at 8.36:1 contrast (WCAG AA passes).

Color values

HEX	#31B0DB
RGB	rgb(49, 176, 219)
HSL	hsl(195, 70%, 53%)
HSV	hsv(195, 78%, 86%)
CMYK	cmyk(77.6%, 19.6%, 0%, 14.1%)
CIE-LAB	lab(67.14, -19.54, -31.35)
CIE-LCH	lch(67.14, 36.94, 238.06°)
OKLab	oklab(70.85% -0.0852 -0.088)
OKLCH	oklch(70.85% 0.122 225.9)
XYZ	xyz(29.5728, 36.8145, 72.5514)
Luminance	0.3682 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31B0DB #DB5C31

analogous

#31DBB1 #31B0DB #315BDB

triadic

#31B0DB #DB31B0 #B0DB31

tetradic

#31B0DB #B131DB #DB5C31 #5BDB31

square

#31B0DB #B131DB #DB5C31 #5BDB31

split-complementary

#31B0DB #DB315B #DBB131

monochromatic

#16627C #1F8BB0 #31B0DB #65C4E4 #99D8ED

Accessibility & contrast

On white

2.51

#31B0DB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.36

#31B0DB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B0DB

8.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31B0DB	#FFFFFF	#000000	##000000
##31B0DB	1.00	2.51	8.36	8.36
#FFFFFF	2.51	1.00	21.00	21.00
#000000	8.36	21.00	1.00	1.00
##000000	8.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#99ACDD

Deuteranopia (green-blind)

#829CDA

Tritanopia (blue-blind)

#00BDBE

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #31b0db;
/* rgb */ color: rgb(49, 176, 219);
/* oklch */ color: oklch(70.9% 0.122 225.9);

Tailwind

colors: {
  custom: {
    50: '#83c7e6',
    500: '#31b0db',
    950: '#000000',
  },
}

SCSS

$custom: #31b0db;
$custom-light: #83c7e6;
$custom-dark: #000000;

JSON

{
  "hex": "#31b0db",
  "rgb": {
    "r": 49,
    "g": 176,
    "b": 219
  },
  "hsl": {
    "h": 195.176,
    "s": 70.248,
    "l": 52.549
  },
  "oklch": {
    "l": 0.7085,
    "c": 0.12249,
    "h": 225.9
  },
  "luminance": 0.36818
}

Semantic roles & 50–950 ramp

primary

#31B0DB

secondary

#D9A28F

accent

#683BED

background

#F8FCFE

surface

#F0F8FC

border

#CBD1D5

text

#0C1316

muted

#7D8284

Preview Lab

Preview with #31B0DB

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

Preview Lab → · Contrast checker → · Palette generator →