#377CC8#377CC8

#377CC8 is a mid, vivid cyan. Relative luminance 0.194; OKLCH L 57.9% C 0.136 H 253.1°. Best body text is #000000 at 4.88:1 contrast (WCAG AA passes).

Color values

HEX#377CC8
RGBrgb(55, 124, 200)
HSLhsl(211, 57%, 50%)
HSVhsv(211, 73%, 78%)
CMYKcmyk(72.5%, 38%, 0%, 21.6%)
CIE-LABlab(51.15, 3.97, -45.76)
CIE-LCHlch(51.15, 45.93, 274.96°)
OKLaboklab(57.94% -0.0396 -0.1304)
OKLCHoklch(57.94% 0.136 253.1)
XYZxyz(19.2047, 19.3955, 57.3640)
Luminance0.1940 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#377CC8 #C88337
analogous
#37C5C8 #377CC8 #3A37C8
triadic
#377CC8 #C8377C #7CC837
tetradic
#377CC8 #C837C5 #C88337 #37C83A
square
#377CC8 #C837C5 #C88337 #37C83A
split-complementary
#377CC8 #C83A37 #C5C837
monochromatic
#1D4068 #2A5E98 #377CC8 #679BD5 #97BBE2

Accessibility & contrast

On white

4.30
#377CC8 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

4.88
#377CC8 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377CC8
4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##377CC8#FFFFFF#000000##000000
##377CC81.004.304.884.88
#FFFFFF4.301.0021.0021.00
#0000004.8821.001.001.00
##0000004.8821.001.001.00

Color blindness preview

Protanopia (red-blind)
#5981CB
Deuteranopia (green-blind)
#4374C6
Tritanopia (blue-blind)
#008E98
Achromatopsia (no color)
#7A7A7A

Design tokens & code

CSS
--color: #377cc8;
/* rgb */ color: rgb(55, 124, 200);
/* oklch */ color: oklch(57.9% 0.136 253.1);
Tailwind
colors: {
  custom: {
    50: '#80a1d9',
    500: '#377cc8',
    950: '#000000',
  },
}
SCSS
$custom: #377cc8;
$custom-light: #80a1d9;
$custom-dark: #000000;
JSON
{
  "hex": "#377cc8",
  "rgb": {
    "r": 55,
    "g": 124,
    "b": 200
  },
  "hsl": {
    "h": 211.448,
    "s": 56.863,
    "l": 50
  },
  "oklch": {
    "l": 0.57935,
    "c": 0.13626,
    "h": 253.1
  },
  "luminance": 0.19398
}

Semantic roles & 50–950 ramp

primary
#377CC8
secondary
#CEAF8D
accent
#9848E0
background
#F8F9FD
surface
#F0F2FA
border
#CBCCD3
text
#0B0E14
muted
#7C7E83

Preview Lab

Preview with #377CC8

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

Preview Lab → · Contrast checker → · Palette generator →

#377CC8 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva