#31B1DC#31B1DC

#31B1DC is a light, vivid cyan. Relative luminance 0.373; OKLCH L 71.1% C 0.123 H 225.7°. Best body text is #000000 at 8.45:1 contrast (WCAG AA passes).

Color values

HEX	#31B1DC
RGB	rgb(49, 177, 220)
HSL	hsl(195, 71%, 53%)
HSV	hsv(195, 78%, 86%)
CMYK	cmyk(77.7%, 19.5%, 0%, 13.7%)
CIE-LAB	lab(67.47, -19.73, -31.38)
CIE-LCH	lch(67.47, 37.07, 237.83°)
OKLab	oklab(71.13% -0.0858 -0.0881)
OKLCH	oklch(71.13% 0.123 225.7)
XYZ	xyz(29.9017, 37.2609, 73.3124)
Luminance	0.3726 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31B1DC #DC5C31

analogous

#31DCB2 #31B1DC #315BDC

triadic

#31B1DC #DC31B1 #B1DC31

tetradic

#31B1DC #B231DC #DC5C31 #5BDC31

square

#31B1DC #B231DC #DC5C31 #5BDC31

split-complementary

#31B1DC #DC315B #DCB231

monochromatic

#15637D #1E8DB2 #31B1DC #65C5E5 #9AD9EE

Accessibility & contrast

On white

2.48

#31B1DC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.45

#31B1DC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B1DC

8.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31B1DC	#FFFFFF	#000000	##000000
##31B1DC	1.00	2.48	8.45	8.45
#FFFFFF	2.48	1.00	21.00	21.00
#000000	8.45	21.00	1.00	1.00
##000000	8.45	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#99ADDE

Deuteranopia (green-blind)

#839DDB

Tritanopia (blue-blind)

#00BEBF

Achromatopsia (no color)

#A4A4A4

Design tokens & code

CSS

--color: #31b1dc;
/* rgb */ color: rgb(49, 177, 220);
/* oklch */ color: oklch(71.1% 0.123 225.7);

Tailwind

colors: {
  custom: {
    50: '#83c8e7',
    500: '#31b1dc',
    950: '#000000',
  },
}

SCSS

$custom: #31b1dc;
$custom-light: #83c8e7;
$custom-dark: #000000;

JSON

{
  "hex": "#31b1dc",
  "rgb": {
    "r": 49,
    "g": 177,
    "b": 220
  },
  "hsl": {
    "h": 195.088,
    "s": 70.954,
    "l": 52.745
  },
  "oklch": {
    "l": 0.71131,
    "c": 0.12296,
    "h": 225.7
  },
  "luminance": 0.37265
}

Semantic roles & 50–950 ramp

primary

#31B1DC

secondary

#D9A28F

accent

#673AEE

background

#F8FCFE

surface

#F0F8FC

border

#CBD1D5

text

#0D1316

muted

#7D8284

Preview Lab

Preview with #31B1DC

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

Preview Lab → · Contrast checker → · Palette generator →