#31B3CF#31B3CF

#31B3CF is a light, moderate cyan. Relative luminance 0.374; OKLCH L 71.0% C 0.114 H 216.0°. Best body text is #000000 at 8.48:1 contrast (WCAG AA passes).

Color values

HEX	#31B3CF
RGB	rgb(49, 179, 207)
HSL	hsl(191, 62%, 50%)
HSV	hsv(191, 76%, 81%)
CMYK	cmyk(76.3%, 13.5%, 0%, 18.8%)
CIE-LAB	lab(67.57, -25.00, -24.08)
CIE-LCH	lch(67.57, 34.71, 223.92°)
OKLab	oklab(71.05% -0.0926 -0.0672)
OKLCH	oklch(71.05% 0.114 216)
XYZ	xyz(28.6444, 37.3947, 64.7276)
Luminance	0.3740 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31B3CF #CF4D31

analogous

#31CF9C #31B3CF #3164CF

triadic

#31B3CF #CF31B3 #B3CF31

tetradic

#31B3CF #9C31CF #CF4D31 #64CF31

square

#31B3CF #9C31CF #CF4D31 #64CF31

split-complementary

#31B3CF #CF3164 #CF9C31

monochromatic

#195E6C #25899E #31B3CF #63C5DB #94D8E6

Accessibility & contrast

On white

2.48

#31B3CF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.48

#31B3CF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #31B3CF

8.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31B3CF	#FFFFFF	#000000	##000000
##31B3CF	1.00	2.48	8.48	8.48
#FFFFFF	2.48	1.00	21.00	21.00
#000000	8.48	21.00	1.00	1.00
##000000	8.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A0ADD1

Deuteranopia (green-blind)

#8B9ECF

Tritanopia (blue-blind)

#00BDBC

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #31b3cf;
/* rgb */ color: rgb(49, 179, 207);
/* oklch */ color: oklch(71.0% 0.114 216.0);

Tailwind

colors: {
  custom: {
    50: '#82cadd',
    500: '#31b3cf',
    950: '#000000',
  },
}

SCSS

$custom: #31b3cf;
$custom-light: #82cadd;
$custom-dark: #000000;

JSON

{
  "hex": "#31b3cf",
  "rgb": {
    "r": 49,
    "g": 179,
    "b": 207
  },
  "hsl": {
    "h": 190.633,
    "s": 62.205,
    "l": 50.196
  },
  "oklch": {
    "l": 0.71048,
    "c": 0.11445,
    "h": 216
  },
  "luminance": 0.37398
}

Semantic roles & 50–950 ramp

primary

#31B3CF

secondary

#D1978B

accent

#5F43E5

background

#F8FCFD

surface

#F0F8FB

border

#CBD1D4

text

#0C1315

muted

#7D8283

Preview Lab

Preview with #31B3CF

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

Preview Lab → · Contrast checker → · Palette generator →