#377AB9#377AB9

#377AB9 is a mid, moderate cyan. Relative luminance 0.182; OKLCH L 56.6% C 0.119 H 249.5°. Best body text is #000000 at 4.65:1 contrast (WCAG AA passes).

Color values

HEX#377AB9
RGBrgb(55, 122, 185)
HSLhsl(209, 54%, 47%)
HSVhsv(209, 70%, 73%)
CMYKcmyk(70.3%, 34.1%, 0%, 27.5%)
CIE-LABlab(49.78, -0.22, -39.33)
CIE-LCHlch(49.78, 39.33, 269.68°)
OKLaboklab(56.61% -0.0416 -0.1116)
OKLCHoklch(56.61% 0.119 249.5)
XYZxyz(17.2888, 18.2322, 48.4976)
Luminance0.1823 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#377AB9 #B97637
analogous
#37B9B7 #377AB9 #3739B9
triadic
#377AB9 #B9377A #7AB937
tetradic
#377AB9 #B737B9 #B97637 #39B937
square
#377AB9 #B737B9 #B97637 #39B937
split-complementary
#377AB9 #B93739 #B9B737
monochromatic
#1B3C5B #295B8A #377AB9 #5E98CF #8DB6DD

Accessibility & contrast

On white

4.52
#377AB9 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.65
#377AB9 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377AB9
4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##377AB9#FFFFFF#000000##000000
##377AB91.004.524.654.65
#FFFFFF4.521.0021.0021.00
#0000004.6521.001.001.00
##0000004.6521.001.001.00

Color blindness preview

Protanopia (red-blind)
#5E7DBC
Deuteranopia (green-blind)
#4B71B8
Tritanopia (blue-blind)
#008991
Achromatopsia (no color)
#767676

Design tokens & code

CSS
--color: #377ab9;
/* rgb */ color: rgb(55, 122, 185);
/* oklch */ color: oklch(56.6% 0.119 249.5);
Tailwind
colors: {
  custom: {
    50: '#7da0ce',
    500: '#377ab9',
    950: '#000000',
  },
}
SCSS
$custom: #377ab9;
$custom-light: #7da0ce;
$custom-dark: #000000;
JSON
{
  "hex": "#377ab9",
  "rgb": {
    "r": 55,
    "g": 122,
    "b": 185
  },
  "hsl": {
    "h": 209.077,
    "s": 54.167,
    "l": 47.059
  },
  "oklch": {
    "l": 0.56605,
    "c": 0.11911,
    "h": 249.5
  },
  "luminance": 0.18234
}

Semantic roles & 50–950 ramp

primary
#377AB9
secondary
#C8A584
accent
#924ADE
background
#F8F9FC
surface
#EFF2F9
border
#CACCD2
text
#0B0E13
muted
#7C7E82

Preview Lab

Preview with #377AB9

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

Preview Lab → · Contrast checker → · Palette generator →

#377AB9 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva