#377E8D#377E8D

#377E8D is a mid, moderate cyan. Relative luminance 0.177; OKLCH L 55.4% C 0.074 H 213.7°. Best body text is #FFFFFF at 4.63:1 contrast (WCAG AA passes).

Color values

HEX#377E8D
RGBrgb(55, 126, 141)
HSLhsl(190, 44%, 38%)
HSVhsv(190, 61%, 55%)
CMYKcmyk(61%, 10.6%, 0%, 44.7%)
CIE-LABlab(49.08, -17.44, -14.79)
CIE-LCHlch(49.08, 22.86, 220.31°)
OKLaboklab(55.42% -0.0616 -0.041)
OKLCHoklch(55.42% 0.074 213.7)
XYZxyz(13.8422, 17.6556, 27.8725)
Luminance0.1766 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#377E8D #8D4637
analogous
#378D71 #377E8D #37538D
triadic
#377E8D #8D377E #7E8D37
tetradic
#377E8D #71378D #8D4637 #538D37
square
#377E8D #71378D #8D4637 #538D37
split-complementary
#377E8D #8D3753 #8D7137
monochromatic
#152F35 #265761 #377E8D #49A5B8 #75BBC9

Accessibility & contrast

On white

4.63
#377E8D on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.53
#377E8D on #000000
AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #377E8D
4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##377E8D#FFFFFF#000000##FFFFFF
##377E8D1.004.634.534.63
#FFFFFF4.631.0021.001.00
#0000004.5321.001.0021.00
##FFFFFF4.631.0021.001.00

Color blindness preview

Protanopia (red-blind)
#737A8E
Deuteranopia (green-blind)
#66718D
Tritanopia (blue-blind)
#008483
Achromatopsia (no color)
#757575

Design tokens & code

CSS
--color: #377e8d;
/* rgb */ color: rgb(55, 126, 141);
/* oklch */ color: oklch(55.4% 0.074 213.7);
Tailwind
colors: {
  custom: {
    50: '#77a3ae',
    500: '#377e8d',
    950: '#000000',
  },
}
SCSS
$custom: #377e8d;
$custom-light: #77a3ae;
$custom-dark: #000000;
JSON
{
  "hex": "#377e8d",
  "rgb": {
    "r": 55,
    "g": 126,
    "b": 141
  },
  "hsl": {
    "h": 190.465,
    "s": 43.878,
    "l": 38.431
  },
  "oklch": {
    "l": 0.55416,
    "c": 0.07397,
    "h": 213.7
  },
  "luminance": 0.17657
}

Semantic roles & 50–950 ramp

primary
#377E8D
secondary
#B27A6E
accent
#6A54D4
background
#F7FAFA
surface
#EEF4F4
border
#C9CECE
text
#090F10
muted
#7B7F7F

Preview Lab

Preview with #377E8D

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

Preview Lab → · Contrast checker → · Palette generator →

#377E8D Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva