#31738D#31738D

#31738D is a mid, moderate cyan. Relative luminance 0.148; OKLCH L 52.4% C 0.078 H 227.1°. Best body text is #FFFFFF at 5.29:1 contrast (WCAG AA passes).

Color values

HEX	#31738D
RGB	rgb(49, 115, 141)
HSL	hsl(197, 48%, 37%)
HSV	hsv(197, 65%, 55%)
CMYK	cmyk(65.2%, 18.4%, 0%, 44.7%)
CIE-LAB	lab(45.41, -12.45, -20.41)
CIE-LCH	lch(45.41, 23.91, 238.61°)
OKLab	oklab(52.42% -0.053 -0.057)
OKLCH	oklch(52.42% 0.078 227.1)
XYZ	xyz(12.2032, 14.8363, 27.4147)
Luminance	0.1484 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31738D #8D4B31

analogous

#318D79 #31738D #31458D

triadic

#31738D #8D3173 #738D31

tetradic

#31738D #79318D #8D4B31 #458D31

square

#31738D #79318D #8D4B31 #458D31

split-complementary

#31738D #8D3145 #8D7931

monochromatic

#112932 #214E60 #31738D #4198BA #6CB1CC

Accessibility & contrast

On white

5.29

#31738D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.97

#31738D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #31738D

5.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31738D	#FFFFFF	#000000	##FFFFFF
##31738D	1.00	5.29	3.97	5.29
#FFFFFF	5.29	1.00	21.00	1.00
#000000	3.97	21.00	1.00	21.00
##FFFFFF	5.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#65718E

Deuteranopia (green-blind)

#58678D

Tritanopia (blue-blind)

#007B7B

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #31738d;
/* rgb */ color: rgb(49, 115, 141);
/* oklch */ color: oklch(52.4% 0.078 227.1);

Tailwind

colors: {
  custom: {
    50: '#739bae',
    500: '#31738d',
    950: '#000000',
  },
}

SCSS

$custom: #31738d;
$custom-light: #739bae;
$custom-dark: #000000;

JSON

{
  "hex": "#31738d",
  "rgb": {
    "r": 49,
    "g": 115,
    "b": 141
  },
  "hsl": {
    "h": 196.957,
    "s": 48.421,
    "l": 37.255
  },
  "oklch": {
    "l": 0.52423,
    "c": 0.07783,
    "h": 227.1
  },
  "luminance": 0.14838
}

Semantic roles & 50–950 ramp

primary

#31738D

secondary

#B47C66

accent

#7650D8

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#090E10

muted

#7B7E7F

Preview Lab

Preview with #31738D

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

Preview Lab → · Contrast checker → · Palette generator →