#37639E#37639E

#37639E is a mid, moderate cyan. Relative luminance 0.122; OKLCH L 49.7% C 0.107 H 256.3°. Best body text is #FFFFFF at 6.10:1 contrast (WCAG AA passes).

Color values

HEX	#37639E
RGB	rgb(55, 99, 158)
HSL	hsl(214, 48%, 42%)
HSV	hsv(214, 65%, 62%)
CMYK	cmyk(65.2%, 37.3%, 0%, 38%)
CIE-LAB	lab(41.54, 4.26, -36.55)
CIE-LCH	lch(41.54, 36.80, 276.64°)
OKLab	oklab(49.7% -0.0253 -0.1038)
OKLCH	oklch(49.7% 0.107 256.3)
XYZ	xyz(12.2067, 12.2034, 34.0533)
Luminance	0.1221 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37639E #9E7237

analogous

#37979E #37639E #3F379E

triadic

#37639E #9E3763 #639E37

tetradic

#37639E #9E3797 #9E7237 #379E3F

square

#37639E #9E3797 #9E7237 #379E3F

split-complementary

#37639E #9E3F37 #979E37

monochromatic

#172A43 #274771 #37639E #5081C2 #7DA2D2

Accessibility & contrast

On white

6.10

#37639E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.44

#37639E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #37639E

6.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37639E	#FFFFFF	#000000	##FFFFFF
##37639E	1.00	6.10	3.44	6.10
#FFFFFF	6.10	1.00	21.00	1.00
#000000	3.44	21.00	1.00	21.00
##FFFFFF	6.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4967A0

Deuteranopia (green-blind)

#3B5E9D

Tritanopia (blue-blind)

#007179

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #37639e;
/* rgb */ color: rgb(55, 99, 158);
/* oklch */ color: oklch(49.7% 0.107 256.3);

Tailwind

colors: {
  custom: {
    50: '#788fbb',
    500: '#37639e',
    950: '#000000',
  },
}

SCSS

$custom: #37639e;
$custom-light: #788fbb;
$custom-dark: #000000;

JSON

{
  "hex": "#37639e",
  "rgb": {
    "r": 55,
    "g": 99,
    "b": 158
  },
  "hsl": {
    "h": 214.369,
    "s": 48.357,
    "l": 41.765
  },
  "oklch": {
    "l": 0.49696,
    "c": 0.1068,
    "h": 256.3
  },
  "luminance": 0.12205
}

Semantic roles & 50–950 ramp

primary

#37639E

secondary

#BB9D76

accent

#9E50D8

background

#F7F8FB

surface

#EEF0F6

border

#C9CBD0

text

#0A0C12

muted

#7C7D81

Preview Lab

Preview with #37639E

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

Preview Lab → · Contrast checker → · Palette generator →