#31738E#31738E

#31738E is a mid, moderate cyan. Relative luminance 0.149; OKLCH L 52.5% C 0.079 H 228.0°. Best body text is #FFFFFF at 5.29:1 contrast (WCAG AA passes).

Color values

HEX	#31738E
RGB	rgb(49, 115, 142)
HSL	hsl(197, 49%, 37%)
HSV	hsv(197, 65%, 56%)
CMYK	cmyk(65.5%, 19%, 0%, 44.3%)
CIE-LAB	lab(45.45, -12.12, -20.94)
CIE-LCH	lch(45.45, 24.20, 239.95°)
OKLab	oklab(52.47% -0.0526 -0.0585)
OKLCH	oklch(52.47% 0.079 228)
XYZ	xyz(12.2779, 14.8662, 27.8083)
Luminance	0.1487 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31738E #8E4C31

analogous

#318E7A #31738E #31458E

triadic

#31738E #8E3173 #738E31

tetradic

#31738E #7A318E #8E4C31 #458E31

square

#31738E #7A318E #8E4C31 #458E31

split-complementary

#31738E #8E3145 #8E7A31

monochromatic

#122933 #214E61 #31738E #4198BB #6DB1CD

Accessibility & contrast

On white

5.29

#31738E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.97

#31738E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #31738E

5.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31738E	#FFFFFF	#000000	##FFFFFF
##31738E	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)

#65718F

Deuteranopia (green-blind)

#58678E

Tritanopia (blue-blind)

#007B7C

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #31738e;
/* rgb */ color: rgb(49, 115, 142);
/* oklch */ color: oklch(52.5% 0.079 228.0);

Tailwind

colors: {
  custom: {
    50: '#749baf',
    500: '#31738e',
    950: '#000000',
  },
}

SCSS

$custom: #31738e;
$custom-light: #749baf;
$custom-dark: #000000;

JSON

{
  "hex": "#31738e",
  "rgb": {
    "r": 49,
    "g": 115,
    "b": 142
  },
  "hsl": {
    "h": 197.419,
    "s": 48.691,
    "l": 37.451
  },
  "oklch": {
    "l": 0.52469,
    "c": 0.07869,
    "h": 228
  },
  "luminance": 0.14867
}

Semantic roles & 50–950 ramp

primary

#31738E

secondary

#B47D67

accent

#7750D8

background

#F7F9FA

surface

#EDF2F4

border

#C8CCCE

text

#090E10

muted

#7B7E7F

Preview Lab

Preview with #31738E

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

Preview Lab → · Contrast checker → · Palette generator →