#37557B#37557B

#37557B is a dark, moderate cyan. Relative luminance 0.087; OKLCH L 44.4% C 0.072 H 254.9°. Best body text is #FFFFFF at 7.64:1 contrast (WCAG AA passes).

Color values

HEX#37557B
RGBrgb(55, 85, 123)
HSLhsl(214, 38%, 35%)
HSVhsv(214, 55%, 48%)
CMYKcmyk(55.3%, 30.9%, 0%, 51.8%)
CIE-LABlab(35.48, 0.82, -24.90)
CIE-LCHlch(35.48, 24.91, 271.88°)
OKLaboklab(44.37% -0.0189 -0.07)
OKLCHoklch(44.37% 0.072 254.9)
XYZxyz(8.3980, 8.7386, 19.9792)
Luminance0.0874 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#37557B #7B5D37
analogous
#37777B #37557B #3B377B
triadic
#37557B #7B3755 #557B37
tetradic
#37557B #7B3777 #7B5D37 #377B3B
square
#37557B #7B3777 #7B5D37 #377B3B
split-complementary
#37557B #7B3B37 #777B37
monochromatic
#111B26 #243851 #37557B #4A72A5 #6E91BE

Accessibility & contrast

On white

7.64
#37557B on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.75
#37557B on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37557B
7.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##37557B#FFFFFF#000000##FFFFFF
##37557B1.007.642.757.64
#FFFFFF7.641.0021.001.00
#0000002.7521.001.0021.00
##FFFFFF7.641.0021.001.00

Color blindness preview

Protanopia (red-blind)
#46577D
Deuteranopia (green-blind)
#3D507A
Tritanopia (blue-blind)
#115E62
Achromatopsia (no color)
#535353

Design tokens & code

CSS
--color: #37557b;
/* rgb */ color: rgb(55, 85, 123);
/* oklch */ color: oklch(44.4% 0.072 254.9);
Tailwind
colors: {
  custom: {
    50: '#7384a1',
    500: '#37557b',
    950: '#000000',
  },
}
SCSS
$custom: #37557b;
$custom-light: #7384a1;
$custom-dark: #000000;
JSON
{
  "hex": "#37557b",
  "rgb": {
    "r": 55,
    "g": 85,
    "b": 123
  },
  "hsl": {
    "h": 213.529,
    "s": 38.202,
    "l": 34.902
  },
  "oklch": {
    "l": 0.44367,
    "c": 0.07247,
    "h": 254.9
  },
  "luminance": 0.08739
}

Semantic roles & 50–950 ramp

primary
#37557B
secondary
#A78B67
accent
#9B5ACE
background
#F7F8F9
surface
#EDEFF2
border
#C8CACC
text
#080A0F
muted
#7B7C7E

Preview Lab

Preview with #37557B

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

Preview Lab → · Contrast checker → · Palette generator →

#37557B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva