#373FC4#373FC4

#373FC4 is a mid, highly saturated blue. Relative luminance 0.084; OKLCH L 45.4% C 0.203 H 272.4°. Best body text is #FFFFFF at 7.86:1 contrast (WCAG AA passes).

Color values

HEX#373FC4
RGBrgb(55, 63, 196)
HSLhsl(237, 56%, 49%)
HSVhsv(237, 72%, 77%)
CMYKcmyk(71.9%, 67.9%, 0%, 23.1%)
CIE-LABlab(34.70, 41.12, -70.03)
CIE-LCHlch(34.70, 81.21, 300.42°)
OKLaboklab(45.4% 0.0086 -0.2025)
OKLCHoklch(45.4% 0.203 272.4)
XYZxyz(13.3135, 8.3514, 53.1242)
Luminance0.0835 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#373FC4 #C4BC37
analogous
#3786C4 #373FC4 #7637C4
triadic
#373FC4 #C4373F #3FC437
tetradic
#373FC4 #C43786 #C4BC37 #37C476
square
#373FC4 #C43786 #C4BC37 #37C476
split-complementary
#373FC4 #C47637 #86C437
monochromatic
#1C2064 #2A3094 #373FC4 #656BD4 #9499E1

Accessibility & contrast

On white

7.86
#373FC4 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.67
#373FC4 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373FC4
7.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##373FC4#FFFFFF#000000##FFFFFF
##373FC41.007.862.677.86
#FFFFFF7.861.0021.001.00
#0000002.6721.001.0021.00
##FFFFFF7.861.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0058C8
Deuteranopia (green-blind)
#004BC2
Tritanopia (blue-blind)
#00637C
Achromatopsia (no color)
#525252

Design tokens & code

CSS
--color: #373fc4;
/* rgb */ color: rgb(55, 63, 196);
/* oklch */ color: oklch(45.4% 0.203 272.4);
Tailwind
colors: {
  custom: {
    50: '#8274d7',
    500: '#373fc4',
    950: '#000000',
  },
}
SCSS
$custom: #373fc4;
$custom-light: #8274d7;
$custom-dark: #000000;
JSON
{
  "hex": "#373fc4",
  "rgb": {
    "r": 55,
    "g": 63,
    "b": 196
  },
  "hsl": {
    "h": 236.596,
    "s": 56.175,
    "l": 49.216
  },
  "oklch": {
    "l": 0.45401,
    "c": 0.20266,
    "h": 272.4
  },
  "luminance": 0.08353
}

Semantic roles & 50–950 ramp

primary
#373FC4
secondary
#CCC98B
accent
#D748DF
background
#F8F7FD
surface
#F0EDFA
border
#CBC8D3
text
#0C0815
muted
#7D7B83

Preview Lab

Preview with #373FC4

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

Preview Lab → · Contrast checker → · Palette generator →

#373FC4 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva