#4B37E0#4B37E0

#4B37E0 is a mid, highly saturated blue. Relative luminance 0.096; OKLCH L 48.3% C 0.240 H 277.8°. Best body text is #FFFFFF at 7.19:1 contrast (WCAG AA passes).

Color values

HEX#4B37E0
RGBrgb(75, 55, 224)
HSLhsl(247, 73%, 55%)
HSVhsv(247, 75%, 88%)
CMYKcmyk(66.5%, 75.4%, 0%, 12.2%)
CIE-LABlab(37.13, 56.61, -82.18)
CIE-LCHlch(37.13, 99.79, 304.56°)
OKLaboklab(48.29% 0.0326 -0.2374)
OKLCHoklch(48.29% 0.24 277.8)
XYZxyz(17.7180, 9.6085, 71.4275)
Luminance0.0961 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#4B37E0 #CCE037
analogous
#3777E0 #4B37E0 #A037E0
triadic
#4B37E0 #E04B37 #37E04B
tetradic
#4B37E0 #E03777 #CCE037 #37E0A0
square
#4B37E0 #E03777 #CCE037 #37E0A0
split-complementary
#4B37E0 #E0A037 #77E037
monochromatic
#231588 #301DBD #4B37E0 #7B6CE8 #AAA1F0

Accessibility & contrast

On white

7.19
#4B37E0 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.92
#4B37E0 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4B37E0
7.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##4B37E0#FFFFFF#000000##FFFFFF
##4B37E01.007.192.927.19
#FFFFFF7.191.0021.001.00
#0000002.9221.001.0021.00
##FFFFFF7.191.0021.001.00

Color blindness preview

Protanopia (red-blind)
#005EE5
Deuteranopia (green-blind)
#0050DD
Tritanopia (blue-blind)
#00698A
Achromatopsia (no color)
#575757

Design tokens & code

CSS
--color: #4b37e0;
/* rgb */ color: rgb(75, 55, 224);
/* oklch */ color: oklch(48.3% 0.240 277.8);
Tailwind
colors: {
  custom: {
    50: '#9171eb',
    500: '#4b37e0',
    950: '#000000',
  },
}
SCSS
$custom: #4b37e0;
$custom-light: #9171eb;
$custom-dark: #000000;
JSON
{
  "hex": "#4b37e0",
  "rgb": {
    "r": 75,
    "g": 55,
    "b": 224
  },
  "hsl": {
    "h": 247.101,
    "s": 73.16,
    "l": 54.706
  },
  "oklch": {
    "l": 0.48285,
    "c": 0.23963,
    "h": 277.8
  },
  "luminance": 0.0961
}

Semantic roles & 50–950 ramp

primary
#4B37E0
secondary
#D5DD96
accent
#F038DA
background
#F9F7FE
surface
#F2EDFD
border
#CCC8D5
text
#0E0816
muted
#7E7B84

Preview Lab

Preview with #4B37E0

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

Preview Lab → · Contrast checker → · Palette generator →

#4B37E0 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva