#37636D#37636D

#37636D is a mid, muted cyan. Relative luminance 0.108; OKLCH L 47.2% C 0.051 H 214.0°. Best body text is #FFFFFF at 6.63:1 contrast (WCAG AA passes).

Color values

HEX	#37636D
RGB	rgb(55, 99, 109)
HSL	hsl(191, 33%, 32%)
HSV	hsv(191, 50%, 43%)
CMYK	cmyk(49.5%, 9.2%, 0%, 57.3%)
CIE-LAB	lab(39.31, -12.23, -10.39)
CIE-LCH	lch(39.31, 16.05, 220.34°)
OKLab	oklab(47.2% -0.0424 -0.0286)
OKLCH	oklch(47.2% 0.051 214)
XYZ	xyz(8.7967, 10.8393, 16.0937)
Luminance	0.1084 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37636D #6D4137

analogous

#376D5C #37636D #37486D

triadic

#37636D #6D3763 #636D37

tetradic

#37636D #5C376D #6D4137 #486D37

square

#37636D #5C376D #6D4137 #486D37

split-complementary

#37636D #6D3748 #6D5C37

monochromatic

#0E191C #223E44 #37636D #4C8896 #6AA6B4

Accessibility & contrast

On white

6.63

#37636D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#37636D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #37636D

6.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37636D	#FFFFFF	#000000	##FFFFFF
##37636D	1.00	6.63	3.17	6.63
#FFFFFF	6.63	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C606E

Deuteranopia (green-blind)

#535A6D

Tritanopia (blue-blind)

#1B6766

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #37636d;
/* rgb */ color: rgb(55, 99, 109);
/* oklch */ color: oklch(47.2% 0.051 214.0);

Tailwind

colors: {
  custom: {
    50: '#728f96',
    500: '#37636d',
    950: '#000000',
  },
}

SCSS

$custom: #37636d;
$custom-light: #728f96;
$custom-dark: #000000;

JSON

{
  "hex": "#37636d",
  "rgb": {
    "r": 55,
    "g": 99,
    "b": 109
  },
  "hsl": {
    "h": 191.111,
    "s": 32.927,
    "l": 32.157
  },
  "oklch": {
    "l": 0.47203,
    "c": 0.05121,
    "h": 214
  },
  "luminance": 0.1084
}

Semantic roles & 50–950 ramp

primary

#37636D

secondary

#9D6D63

accent

#725FC9

background

#F7F8F9

surface

#EDF0F2

border

#C8CBCC

text

#080C0D

muted

#7B7D7E

Preview Lab

Preview with #37636D

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

Preview Lab → · Contrast checker → · Palette generator →