#4B37CB#4B37CB

#4B37CB is a mid, highly saturated blue. Relative luminance 0.085; OKLCH L 46.2% C 0.215 H 280.0°. Best body text is #FFFFFF at 7.75:1 contrast (WCAG AA passes).

Color values

HEX	#4B37CB
RGB	rgb(75, 55, 203)
HSL	hsl(248, 59%, 51%)
HSV	hsv(248, 73%, 80%)
CMYK	cmyk(63.1%, 72.9%, 0%, 20.4%)
CIE-LAB	lab(35.08, 50.29, -73.44)
CIE-LCH	lch(35.08, 89.01, 304.40°)
OKLab	oklab(46.23% 0.0373 -0.2119)
OKLCH	oklch(46.23% 0.215 280)
XYZ	xyz(15.0439, 8.5389, 57.3437)
Luminance	0.0854 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 1.39

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B37CB #B7CB37

analogous

#376DCB #4B37CB #9537CB

triadic

#4B37CB #CB4B37 #37CB4B

tetradic

#4B37CB #CB376D #B7CB37 #37CB95

square

#4B37CB #CB376D #B7CB37 #37CB95

split-complementary

#4B37CB #CB9537 #6DCB37

monochromatic

#271C6C #38299C #4B37CB #7768D8 #A298E4

Accessibility & contrast

On white

7.75

#4B37CB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#4B37CB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4B37CB

7.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B37CB	#FFFFFF	#000000	##FFFFFF
##4B37CB	1.00	7.75	2.71	7.75
#FFFFFF	7.75	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058CF

Deuteranopia (green-blind)

#004DC8

Tritanopia (blue-blind)

#00607E

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #4b37cb;
/* rgb */ color: rgb(75, 55, 203);
/* oklch */ color: oklch(46.2% 0.215 280.0);

Tailwind

colors: {
  custom: {
    50: '#8d70dc',
    500: '#4b37cb',
    950: '#000000',
  },
}

SCSS

$custom: #4b37cb;
$custom-light: #8d70dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4b37cb",
  "rgb": {
    "r": 75,
    "g": 55,
    "b": 203
  },
  "hsl": {
    "h": 248.108,
    "s": 58.73,
    "l": 50.588
  },
  "oklch": {
    "l": 0.46225,
    "c": 0.21517,
    "h": 280
  },
  "luminance": 0.0854
}

Semantic roles & 50–950 ramp

primary

#4B37CB

secondary

#C7D08E

accent

#E246CD

background

#F9F6FD

surface

#F2ECFB

border

#CCC7D4

text

#0E0815

muted

#7E7B83

Preview Lab

Preview with #4B37CB

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

Preview Lab → · Contrast checker → · Palette generator →