#373ACC#373ACC

#373ACC is a mid, highly saturated blue. Relative luminance 0.082; OKLCH L 45.4% C 0.218 H 272.7°. Best body text is #FFFFFF at 7.96:1 contrast (WCAG AA passes).

Color values

HEX#373ACC
RGBrgb(55, 58, 204)
HSLhsl(239, 59%, 51%)
HSVhsv(239, 73%, 80%)
CMYKcmyk(73%, 71.6%, 0%, 20%)
CIE-LABlab(34.39, 46.76, -75.21)
CIE-LCHlch(34.39, 88.56, 301.87°)
OKLaboklab(45.4% 0.0103 -0.2176)
OKLCHoklch(45.4% 0.218 272.7)
XYZxyz(13.9840, 8.1965, 57.9601)
Luminance0.0820 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#373ACC #CCC937
analogous
#3784CC #373ACC #7E37CC
triadic
#373ACC #CC373A #3ACC37
tetradic
#373ACC #CC3784 #CCC937 #37CC7E
square
#373ACC #CC3784 #CCC937 #37CC7E
split-complementary
#373ACC #CC7E37 #84CC37
monochromatic
#1C1D6D #282B9E #373ACC #686AD8 #999AE5

Accessibility & contrast

On white

7.96
#373ACC on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.64
#373ACC on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373ACC
7.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##373ACC#FFFFFF#000000##FFFFFF
##373ACC1.007.962.647.96
#FFFFFF7.961.0021.001.00
#0000002.6421.001.0021.00
##FFFFFF7.961.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0058D0
Deuteranopia (green-blind)
#004AC9
Tritanopia (blue-blind)
#00637F
Achromatopsia (no color)
#515151

Design tokens & code

CSS
--color: #373acc;
/* rgb */ color: rgb(55, 58, 204);
/* oklch */ color: oklch(45.4% 0.218 272.7);
Tailwind
colors: {
  custom: {
    50: '#8471dd',
    500: '#373acc',
    950: '#000000',
  },
}
SCSS
$custom: #373acc;
$custom-light: #8471dd;
$custom-dark: #000000;
JSON
{
  "hex": "#373acc",
  "rgb": {
    "r": 55,
    "g": 58,
    "b": 204
  },
  "hsl": {
    "h": 238.792,
    "s": 59.363,
    "l": 50.784
  },
  "oklch": {
    "l": 0.45404,
    "c": 0.21785,
    "h": 272.7
  },
  "luminance": 0.08198
}

Semantic roles & 50–950 ramp

primary
#373ACC
secondary
#D0CF8E
accent
#DF45E3
background
#F9F6FD
surface
#F1ECFB
border
#CBC7D4
text
#0D0815
muted
#7E7B83

Preview Lab

Preview with #373ACC

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

Preview Lab → · Contrast checker → · Palette generator →

#373ACC Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva