#4F37CB#4F37CB

#4F37CB is a mid, highly saturated blue. Relative luminance 0.087; OKLCH L 46.5% C 0.214 H 281.5°. Best body text is #FFFFFF at 7.66:1 contrast (WCAG AA passes).

Color values

HEX#4F37CB
RGBrgb(79, 55, 203)
HSLhsl(250, 59%, 51%)
HSVhsv(250, 73%, 80%)
CMYKcmyk(61.1%, 72.9%, 0%, 20.4%)
CIE-LABlab(35.41, 50.79, -72.89)
CIE-LCHlch(35.41, 88.84, 304.87°)
OKLaboklab(46.54% 0.0427 -0.2102)
OKLCHoklch(46.54% 0.214 281.5)
XYZxyz(15.3667, 8.7053, 57.3589)
Luminance0.0871 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#4F37CB #B3CB37
analogous
#3769CB #4F37CB #9937CB
triadic
#4F37CB #CB4F37 #37CB4F
tetradic
#4F37CB #CB3769 #B3CB37 #37CB99
square
#4F37CB #CB3769 #B3CB37 #37CB99
split-complementary
#4F37CB #CB9937 #69CB37
monochromatic
#291C6C #3B299C #4F37CB #7A68D8 #A498E4

Accessibility & contrast

On white

7.66
#4F37CB on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.74
#4F37CB on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4F37CB
7.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##4F37CB#FFFFFF#000000##FFFFFF
##4F37CB1.007.662.747.66
#FFFFFF7.661.0021.001.00
#0000002.7421.001.0021.00
##FFFFFF7.661.0021.001.00

Color blindness preview

Protanopia (red-blind)
#0058CF
Deuteranopia (green-blind)
#004EC8
Tritanopia (blue-blind)
#00607E
Achromatopsia (no color)
#535353

Design tokens & code

CSS
--color: #4f37cb;
/* rgb */ color: rgb(79, 55, 203);
/* oklch */ color: oklch(46.5% 0.214 281.5);
Tailwind
colors: {
  custom: {
    50: '#8f71dc',
    500: '#4f37cb',
    950: '#000000',
  },
}
SCSS
$custom: #4f37cb;
$custom-light: #8f71dc;
$custom-dark: #000000;
JSON
{
  "hex": "#4f37cb",
  "rgb": {
    "r": 79,
    "g": 55,
    "b": 203
  },
  "hsl": {
    "h": 249.73,
    "s": 58.73,
    "l": 50.588
  },
  "oklch": {
    "l": 0.46541,
    "c": 0.21449,
    "h": 281.5
  },
  "luminance": 0.08706
}

Semantic roles & 50–950 ramp

primary
#4F37CB
secondary
#C5D08E
accent
#E246C9
background
#F9F6FD
surface
#F2ECFB
border
#CCC7D4
text
#0E0815
muted
#7E7B83

Preview Lab

Preview with #4F37CB

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

Preview Lab → · Contrast checker → · Palette generator →

#4F37CB Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva