#37639D#37639D

#37639D is a mid, moderate cyan. Relative luminance 0.122; OKLCH L 49.6% C 0.105 H 256.0°. Best body text is #FFFFFF at 6.12:1 contrast (WCAG AA passes).

Color values

HEX	#37639D
RGB	rgb(55, 99, 157)
HSL	hsl(214, 48%, 42%)
HSV	hsv(214, 65%, 62%)
CMYK	cmyk(65%, 36.9%, 0%, 38.4%)
CIE-LAB	lab(41.48, 3.90, -36.04)
CIE-LCH	lch(41.48, 36.26, 276.17°)
OKLab	oklab(49.64% -0.0255 -0.1023)
OKLCH	oklch(49.64% 0.105 256)
XYZ	xyz(12.1210, 12.1691, 33.6018)
Luminance	0.1217 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37639D #9D7137

analogous

#37969D #37639D #3E379D

triadic

#37639D #9D3763 #639D37

tetradic

#37639D #9D3796 #9D7137 #379D3E

square

#37639D #9D3796 #9D7137 #379D3E

split-complementary

#37639D #9D3E37 #969D37

monochromatic

#172A42 #274670 #37639D #5081C2 #7DA1D1

Accessibility & contrast

On white

6.12

#37639D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.43

#37639D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #37639D

6.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37639D	#FFFFFF	#000000	##FFFFFF
##37639D	1.00	6.12	3.43	6.12
#FFFFFF	6.12	1.00	21.00	1.00
#000000	3.43	21.00	1.00	21.00
##FFFFFF	6.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A679F

Deuteranopia (green-blind)

#3C5D9C

Tritanopia (blue-blind)

#007078

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #37639d;
/* rgb */ color: rgb(55, 99, 157);
/* oklch */ color: oklch(49.6% 0.105 256.0);

Tailwind

colors: {
  custom: {
    50: '#788fba',
    500: '#37639d',
    950: '#000000',
  },
}

SCSS

$custom: #37639d;
$custom-light: #788fba;
$custom-dark: #000000;

JSON

{
  "hex": "#37639d",
  "rgb": {
    "r": 55,
    "g": 99,
    "b": 157
  },
  "hsl": {
    "h": 214.118,
    "s": 48.113,
    "l": 41.569
  },
  "oklch": {
    "l": 0.49636,
    "c": 0.10541,
    "h": 256
  },
  "luminance": 0.1217
}

Semantic roles & 50–950 ramp

primary

#37639D

secondary

#BB9D75

accent

#9D50D8

background

#F7F8FB

surface

#EEF0F6

border

#C9CBD0

text

#0A0C11

muted

#7C7D80

Preview Lab

Preview with #37639D

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

Preview Lab → · Contrast checker → · Palette generator →