#37638E#37638E

#37638E is a mid, moderate cyan. Relative luminance 0.117; OKLCH L 48.8% C 0.085 H 249.5°. Best body text is #FFFFFF at 6.29:1 contrast (WCAG AA passes).

Color values

HEX#37638E
RGBrgb(55, 99, 142)
HSLhsl(210, 44%, 39%)
HSVhsv(210, 61%, 56%)
CMYKcmyk(61.3%, 30.3%, 0%, 44.3%)
CIE-LABlab(40.72, -1.41, -28.28)
CIE-LCHlch(40.72, 28.31, 267.15°)
OKLaboklab(48.78% -0.0299 -0.0797)
OKLCHoklch(48.78% 0.085 249.5)
XYZxyz(10.9181, 11.6879, 27.2666)
Luminance0.1169 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#37638E #8E6237
analogous
#378E8D #37638E #37388E
triadic
#37638E #8E3763 #638E37
tetradic
#37638E #8D378E #8E6237 #388E37
square
#37638E #8D378E #8E6237 #388E37
split-complementary
#37638E #8E3738 #8E8D37
monochromatic
#152536 #264462 #37638E #4982B9 #76A0CA

Accessibility & contrast

On white

6.29
#37638E on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.34
#37638E on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #37638E
6.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##37638E#FFFFFF#000000##FFFFFF
##37638E1.006.293.346.29
#FFFFFF6.291.0021.001.00
#0000003.3421.001.0021.00
##FFFFFF6.291.0021.001.00

Color blindness preview

Protanopia (red-blind)
#516590
Deuteranopia (green-blind)
#455C8D
Tritanopia (blue-blind)
#006D72
Achromatopsia (no color)
#606060

Design tokens & code

CSS
--color: #37638e;
/* rgb */ color: rgb(55, 99, 142);
/* oklch */ color: oklch(48.8% 0.085 249.5);
Tailwind
colors: {
  custom: {
    50: '#768faf',
    500: '#37638e',
    950: '#000000',
  },
}
SCSS
$custom: #37638e;
$custom-light: #768faf;
$custom-dark: #000000;
JSON
{
  "hex": "#37638e",
  "rgb": {
    "r": 55,
    "g": 99,
    "b": 142
  },
  "hsl": {
    "h": 209.655,
    "s": 44.162,
    "l": 38.627
  },
  "oklch": {
    "l": 0.48784,
    "c": 0.08507,
    "h": 249.5
  },
  "luminance": 0.11689
}

Semantic roles & 50–950 ramp

primary
#37638E
secondary
#B3906E
accent
#9354D4
background
#F7F8FA
surface
#EDF0F4
border
#C8CBCE
text
#090C10
muted
#7B7D7F

Preview Lab

Preview with #37638E

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

Preview Lab → · Contrast checker → · Palette generator →

#37638E Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva