#4B39AB#4B39AB

#4B39AB is a dark, vivid blue. Relative luminance 0.074; OKLCH L 43.6% C 0.173 H 283.7°. Best body text is #FFFFFF at 8.49:1 contrast (WCAG AA passes).

Color values

HEX	#4B39AB
RGB	rgb(75, 57, 171)
HSL	hsl(249, 50%, 45%)
HSV	hsv(249, 67%, 67%)
CMYK	cmyk(56.1%, 66.7%, 0%, 32.9%)
CIE-LAB	lab(32.62, 39.26, -58.61)
CIE-LCH	lch(32.62, 70.54, 303.82°)
OKLab	oklab(43.58% 0.0412 -0.1685)
OKLCH	oklch(43.58% 0.173 283.7)
XYZ	xyz(11.7132, 7.3617, 39.3239)
Luminance	0.0736 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.79

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B39AB #99AB39

analogous

#3960AB #4B39AB #8439AB

triadic

#4B39AB #AB4B39 #39AB4B

tetradic

#4B39AB #AB3960 #99AB39 #39AB84

square

#4B39AB #AB3960 #99AB39 #39AB84

split-complementary

#4B39AB #AB8439 #60AB39

monochromatic

#231A4F #372A7D #4B39AB #6B59C8 #9487D7

Accessibility & contrast

On white

8.49

#4B39AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#4B39AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4B39AB

8.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B39AB	#FFFFFF	#000000	##FFFFFF
##4B39AB	1.00	8.49	2.47	8.49
#FFFFFF	8.49	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050AF

Deuteranopia (green-blind)

#0049A9

Tritanopia (blue-blind)

#1D566D

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #4b39ab;
/* rgb */ color: rgb(75, 57, 171);
/* oklch */ color: oklch(43.6% 0.173 283.7);

Tailwind

colors: {
  custom: {
    50: '#8771c5',
    500: '#4b39ab',
    950: '#000000',
  },
}

SCSS

$custom: #4b39ab;
$custom-light: #8771c5;
$custom-dark: #000000;

JSON

{
  "hex": "#4b39ab",
  "rgb": {
    "r": 75,
    "g": 57,
    "b": 171
  },
  "hsl": {
    "h": 249.474,
    "s": 50,
    "l": 44.706
  },
  "oklch": {
    "l": 0.43584,
    "c": 0.17345,
    "h": 283.7
  },
  "luminance": 0.07362
}

Semantic roles & 50–950 ramp

primary

#4B39AB

secondary

#B7C17F

accent

#DA4EC4

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0C0813

muted

#7D7B82

Preview Lab

Preview with #4B39AB

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

Preview Lab → · Contrast checker → · Palette generator →