#377CC6#377CC6

#377CC6 is a mid, vivid cyan. Relative luminance 0.193; OKLCH L 57.8% C 0.134 H 252.5°. Best body text is #000000 at 4.86:1 contrast (WCAG AA passes).

Color values

HEX#377CC6
RGBrgb(55, 124, 198)
HSLhsl(211, 57%, 50%)
HSVhsv(211, 72%, 78%)
CMYKcmyk(72.2%, 37.4%, 0%, 22.4%)
CIE-LABlab(51.04, 3.25, -44.79)
CIE-LCHlch(51.04, 44.91, 274.15°)
OKLaboklab(57.82% -0.0401 -0.1275)
OKLCHoklch(57.82% 0.134 252.5)
XYZxyz(18.9724, 19.3026, 56.1410)
Luminance0.1930 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#377CC6 #C68137
analogous
#37C4C6 #377CC6 #3937C6
triadic
#377CC6 #C6377C #7CC637
tetradic
#377CC6 #C637C4 #C68137 #37C639
square
#377CC6 #C637C4 #C68137 #37C639
split-complementary
#377CC6 #C63937 #C4C637
monochromatic
#1C4066 #2A5E96 #377CC6 #669BD4 #96BAE2

Accessibility & contrast

On white

4.32
#377CC6 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

4.86
#377CC6 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377CC6
4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##377CC6#FFFFFF#000000##000000
##377CC61.004.324.864.86
#FFFFFF4.321.0021.0021.00
#0000004.8621.001.001.00
##0000004.8621.001.001.00

Color blindness preview

Protanopia (red-blind)
#5A81C9
Deuteranopia (green-blind)
#4573C5
Tritanopia (blue-blind)
#008D97
Achromatopsia (no color)
#7A7A7A

Design tokens & code

CSS
--color: #377cc6;
/* rgb */ color: rgb(55, 124, 198);
/* oklch */ color: oklch(57.8% 0.134 252.5);
Tailwind
colors: {
  custom: {
    50: '#7fa1d7',
    500: '#377cc6',
    950: '#000000',
  },
}
SCSS
$custom: #377cc6;
$custom-light: #7fa1d7;
$custom-dark: #000000;
JSON
{
  "hex": "#377cc6",
  "rgb": {
    "r": 55,
    "g": 124,
    "b": 198
  },
  "hsl": {
    "h": 211.049,
    "s": 56.522,
    "l": 49.608
  },
  "oklch": {
    "l": 0.57816,
    "c": 0.13369,
    "h": 252.5
  },
  "luminance": 0.19305
}

Semantic roles & 50–950 ramp

primary
#377CC6
secondary
#CDAE8C
accent
#9748E0
background
#F8F9FD
surface
#F0F2FA
border
#CBCCD3
text
#0B0E14
muted
#7C7E83

Preview Lab

Preview with #377CC6

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

Preview Lab → · Contrast checker → · Palette generator →

#377CC6 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva