#373783#373783

#373783 is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.2% C 0.125 H 278.7°. Best body text is #FFFFFF at 10.31:1 contrast (WCAG AA passes).

Color values

HEX#373783
RGBrgb(55, 55, 131)
HSLhsl(240, 41%, 36%)
HSVhsv(240, 58%, 51%)
CMYKcmyk(58%, 58%, 0%, 48.6%)
CIE-LABlab(27.25, 23.53, -42.97)
CIE-LCHlch(27.25, 48.99, 298.71°)
OKLaboklab(38.23% 0.0189 -0.1231)
OKLCHoklch(38.23% 0.125 278.7)
XYZxyz(7.0372, 5.1828, 22.0979)
Luminance0.0518 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#373783 #838337
analogous
#375D83 #373783 #5D3783
triadic
#373783 #833737 #378337
tetradic
#373783 #83375D #838337 #37835D
square
#373783 #83375D #838337 #37835D
split-complementary
#373783 #835D37 #5D8337
monochromatic
#13132D #252558 #373783 #4949AE #7171C3

Accessibility & contrast

On white

10.31
#373783 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.04
#373783 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373783
10.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##373783#FFFFFF#000000##FFFFFF
##3737831.0010.312.0410.31
#FFFFFF10.311.0021.001.00
#0000002.0421.001.0021.00
##FFFFFF10.311.0021.001.00

Color blindness preview

Protanopia (red-blind)
#004386
Deuteranopia (green-blind)
#003D81
Tritanopia (blue-blind)
#0E4957
Achromatopsia (no color)
#404040

Design tokens & code

CSS
--color: #373783;
/* rgb */ color: rgb(55, 55, 131);
/* oklch */ color: oklch(38.2% 0.125 278.7);
Tailwind
colors: {
  custom: {
    50: '#756ea8',
    500: '#373783',
    950: '#000000',
  },
}
SCSS
$custom: #373783;
$custom-light: #756ea8;
$custom-dark: #000000;
JSON
{
  "hex": "#373783",
  "rgb": {
    "r": 55,
    "g": 55,
    "b": 131
  },
  "hsl": {
    "h": 240,
    "s": 40.86,
    "l": 36.471
  },
  "oklch": {
    "l": 0.38228,
    "c": 0.12458,
    "h": 278.7
  },
  "luminance": 0.05183
}

Semantic roles & 50–950 ramp

primary
#373783
secondary
#ACAC6A
accent
#D157D1
background
#F7F6FA
surface
#EDEBF4
border
#C8C6CE
text
#090710
muted
#7B7A7F

Preview Lab

Preview with #373783

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

Preview Lab → · Contrast checker → · Palette generator →

#373783 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva