#37639F#37639F

#37639F is a mid, moderate cyan. Relative luminance 0.122; OKLCH L 49.8% C 0.108 H 256.6°. Best body text is #FFFFFF at 6.09:1 contrast (WCAG AA passes).

Color values

HEX	#37639F
RGB	rgb(55, 99, 159)
HSL	hsl(215, 49%, 42%)
HSV	hsv(215, 65%, 62%)
CMYK	cmyk(65.4%, 37.7%, 0%, 37.6%)
CIE-LAB	lab(41.59, 4.62, -37.06)
CIE-LCH	lch(41.59, 37.35, 277.10°)
OKLab	oklab(49.76% -0.025 -0.1053)
OKLCH	oklch(49.76% 0.108 256.6)
XYZ	xyz(12.2931, 12.2379, 34.5085)
Luminance	0.1224 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37639F #9F7337

analogous

#37979F #37639F #3F379F

triadic

#37639F #9F3763 #639F37

tetradic

#37639F #9F3797 #9F7337 #379F3F

square

#37639F #9F3797 #9F7337 #379F3F

split-complementary

#37639F #9F3F37 #979F37

monochromatic

#182A44 #274772 #37639F #5181C3 #7EA2D2

Accessibility & contrast

On white

6.09

#37639F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.45

#37639F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #37639F

6.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37639F	#FFFFFF	#000000	##FFFFFF
##37639F	1.00	6.09	3.45	6.09
#FFFFFF	6.09	1.00	21.00	1.00
#000000	3.45	21.00	1.00	21.00
##FFFFFF	6.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4967A1

Deuteranopia (green-blind)

#3A5E9E

Tritanopia (blue-blind)

#007179

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #37639f;
/* rgb */ color: rgb(55, 99, 159);
/* oklch */ color: oklch(49.8% 0.108 256.6);

Tailwind

colors: {
  custom: {
    50: '#788fbc',
    500: '#37639f',
    950: '#000000',
  },
}

SCSS

$custom: #37639f;
$custom-light: #788fbc;
$custom-dark: #000000;

JSON

{
  "hex": "#37639f",
  "rgb": {
    "r": 55,
    "g": 99,
    "b": 159
  },
  "hsl": {
    "h": 214.615,
    "s": 48.598,
    "l": 41.961
  },
  "oklch": {
    "l": 0.49756,
    "c": 0.10819,
    "h": 256.6
  },
  "luminance": 0.12239
}

Semantic roles & 50–950 ramp

primary

#37639F

secondary

#BC9E76

accent

#9E50D8

background

#F7F8FB

surface

#EEF0F6

border

#C9CBD0

text

#0A0C12

muted

#7C7D81

Preview Lab

Preview with #37639F

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

Preview Lab → · Contrast checker → · Palette generator →