#377CAB#377CAB

#377CAB is a mid, moderate cyan. Relative luminance 0.182; OKLCH L 56.3% C 0.101 H 241.5°. Best body text is #000000 at 4.63:1 contrast (WCAG AA passes).

Color values

HEX#377CAB
RGBrgb(55, 124, 171)
HSLhsl(204, 51%, 44%)
HSVhsv(204, 68%, 67%)
CMYKcmyk(67.8%, 27.5%, 0%, 32.9%)
CIE-LABlab(49.70, -6.35, -31.36)
CIE-LCHlch(49.70, 32.00, 258.56°)
OKLaboklab(56.32% -0.048 -0.0884)
OKLCHoklch(56.32% 0.101 241.5)
XYZxyz(16.1311, 18.1661, 41.1765)
Luminance0.1817 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#377CAB #AB6637
analogous
#37ABA0 #377CAB #3742AB
triadic
#377CAB #AB377C #7CAB37
tetradic
#377CAB #A037AB #AB6637 #42AB37
square
#377CAB #A037AB #AB6637 #42AB37
split-complementary
#377CAB #AB3742 #ABA037
monochromatic
#19394E #285A7D #377CAB #569AC9 #85B6D8

Accessibility & contrast

On white

4.53
#377CAB on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.63
#377CAB on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377CAB
4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##377CAB#FFFFFF#000000##000000
##377CAB1.004.534.634.63
#FFFFFF4.531.0021.0021.00
#0000004.6321.001.001.00
##0000004.6321.001.001.00

Color blindness preview

Protanopia (red-blind)
#677CAD
Deuteranopia (green-blind)
#5771AA
Tritanopia (blue-blind)
#00888C
Achromatopsia (no color)
#767676

Design tokens & code

CSS
--color: #377cab;
/* rgb */ color: rgb(55, 124, 171);
/* oklch */ color: oklch(56.3% 0.101 241.5);
Tailwind
colors: {
  custom: {
    50: '#7ba1c4',
    500: '#377cab',
    950: '#000000',
  },
}
SCSS
$custom: #377cab;
$custom-light: #7ba1c4;
$custom-dark: #000000;
JSON
{
  "hex": "#377cab",
  "rgb": {
    "r": 55,
    "g": 124,
    "b": 171
  },
  "hsl": {
    "h": 204.31,
    "s": 51.327,
    "l": 44.314
  },
  "oklch": {
    "l": 0.5632,
    "c": 0.10056,
    "h": 241.5
  },
  "luminance": 0.18168
}

Semantic roles & 50–950 ramp

primary
#377CAB
secondary
#C1987C
accent
#864DDB
background
#F8F9FC
surface
#EFF2F8
border
#CACCD1
text
#0A0F12
muted
#7C7E81

Preview Lab

Preview with #377CAB

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

Preview Lab → · Contrast checker → · Palette generator →

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