#4B37BE#4B37BE

#4B37BE is a dark, vivid blue. Relative luminance 0.079; OKLCH L 45.0% C 0.200 H 281.5°. Best body text is #FFFFFF at 8.11:1 contrast (WCAG AA passes).

Color values

HEX	#4B37BE
RGB	rgb(75, 55, 190)
HSL	hsl(249, 55%, 48%)
HSV	hsv(249, 71%, 75%)
CMYK	cmyk(60.5%, 71.1%, 0%, 25.5%)
CIE-LAB	lab(33.87, 46.31, -67.83)
CIE-LCH	lch(33.87, 82.13, 304.32°)
OKLab	oklab(45% 0.0398 -0.1955)
OKLCH	oklch(45% 0.2 281.5)
XYZ	xyz(13.5592, 7.9450, 49.5242)
Luminance	0.0795 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B37BE #AABE37

analogous

#3766BE #4B37BE #8E37BE

triadic

#4B37BE #BE4B37 #37BE4B

tetradic

#4B37BE #BE3766 #AABE37 #37BE8E

square

#4B37BE #BE3766 #AABE37 #37BE8E

split-complementary

#4B37BE #BE8E37 #66BE37

monochromatic

#261C5F #38298F #4B37BE #7261D1 #9C90DF

Accessibility & contrast

On white

8.11

#4B37BE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.59

#4B37BE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4B37BE

8.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B37BE	#FFFFFF	#000000	##FFFFFF
##4B37BE	1.00	8.11	2.59	8.11
#FFFFFF	8.11	1.00	21.00	1.00
#000000	2.59	21.00	1.00	21.00
##FFFFFF	8.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054C2

Deuteranopia (green-blind)

#004BBB

Tritanopia (blue-blind)

#005C77

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #4b37be;
/* rgb */ color: rgb(75, 55, 190);
/* oklch */ color: oklch(45.0% 0.200 281.5);

Tailwind

colors: {
  custom: {
    50: '#8a70d3',
    500: '#4b37be',
    950: '#000000',
  },
}

SCSS

$custom: #4b37be;
$custom-light: #8a70d3;
$custom-dark: #000000;

JSON

{
  "hex": "#4b37be",
  "rgb": {
    "r": 75,
    "g": 55,
    "b": 190
  },
  "hsl": {
    "h": 248.889,
    "s": 55.102,
    "l": 48.039
  },
  "oklch": {
    "l": 0.44995,
    "c": 0.19953,
    "h": 281.5
  },
  "luminance": 0.07946
}

Semantic roles & 50–950 ramp

primary

#4B37BE

secondary

#C0CA87

accent

#DE49C8

background

#F9F6FD

surface

#F1ECFA

border

#CBC7D3

text

#0D0814

muted

#7E7B83

Preview Lab

Preview with #4B37BE

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

Preview Lab → · Contrast checker → · Palette generator →