#37737F#37737F

#37737F is a mid, moderate cyan. Relative luminance 0.146; OKLCH L 52.0% C 0.065 H 212.4°. Best body text is #FFFFFF at 5.36:1 contrast (WCAG AA passes).

Color values

HEX#37737F
RGBrgb(55, 115, 127)
HSLhsl(190, 40%, 36%)
HSVhsv(190, 57%, 50%)
CMYKcmyk(56.7%, 9.4%, 0%, 50.2%)
CIE-LABlab(45.09, -15.76, -12.54)
CIE-LCHlch(45.09, 20.14, 218.51°)
OKLaboklab(52.05% -0.0546 -0.0347)
OKLCHoklch(52.05% 0.065 212.4)
XYZxyz(11.5355, 14.6049, 22.2857)
Luminance0.1461 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#37737F #7F4337
analogous
#377F67 #37737F #374F7F
triadic
#37737F #7F3773 #737F37
tetradic
#37737F #67377F #7F4337 #4F7F37
square
#37737F #67377F #7F4337 #4F7F37
split-complementary
#37737F #7F374F #7F6737
monochromatic
#12262A #254C54 #37737F #499AAA #70B3C1

Accessibility & contrast

On white

5.36
#37737F on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.92
#37737F on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #37737F
5.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##37737F#FFFFFF#000000##FFFFFF
##37737F1.005.363.925.36
#FFFFFF5.361.0021.001.00
#0000003.9221.001.0021.00
##FFFFFF5.361.0021.001.00

Color blindness preview

Protanopia (red-blind)
#6A6F80
Deuteranopia (green-blind)
#5F677F
Tritanopia (blue-blind)
#007877
Achromatopsia (no color)
#6B6B6B

Design tokens & code

CSS
--color: #37737f;
/* rgb */ color: rgb(55, 115, 127);
/* oklch */ color: oklch(52.0% 0.065 212.4);
Tailwind
colors: {
  custom: {
    50: '#759ba4',
    500: '#37737f',
    950: '#000000',
  },
}
SCSS
$custom: #37737f;
$custom-light: #759ba4;
$custom-dark: #000000;
JSON
{
  "hex": "#37737f",
  "rgb": {
    "r": 55,
    "g": 115,
    "b": 127
  },
  "hsl": {
    "h": 190,
    "s": 39.56,
    "l": 35.686
  },
  "oklch": {
    "l": 0.52048,
    "c": 0.06473,
    "h": 212.4
  },
  "luminance": 0.14606
}

Semantic roles & 50–950 ramp

primary
#37737F
secondary
#AA7368
accent
#6C58CF
background
#F7F9FA
surface
#EDF2F4
border
#C8CCCE
text
#090E0F
muted
#7B7E7F

Preview Lab

Preview with #37737F

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

Preview Lab → · Contrast checker → · Palette generator →

#37737F Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva