#4C39B5#4C39B5

#4C39B5 is a dark, vivid blue. Relative luminance 0.078; OKLCH L 44.5% C 0.186 H 282.8°. Best body text is #FFFFFF at 8.20:1 contrast (WCAG AA passes).

Color values

HEX	#4C39B5
RGB	rgb(76, 57, 181)
HSL	hsl(249, 52%, 47%)
HSV	hsv(249, 69%, 71%)
CMYK	cmyk(58%, 68.5%, 0%, 29%)
CIE-LAB	lab(33.56, 42.55, -63.02)
CIE-LCH	lch(33.56, 76.04, 304.03°)
OKLab	oklab(44.55% 0.0412 -0.1814)
OKLCH	oklch(44.55% 0.186 282.8)
XYZ	xyz(12.7815, 7.7981, 44.5388)
Luminance	0.0780 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.39

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C39B5 #A2B539

analogous

#3964B5 #4C39B5 #8A39B5

triadic

#4C39B5 #B54C39 #39B54C

tetradic

#4C39B5 #B53964 #A2B539 #39B58A

square

#4C39B5 #B53964 #A2B539 #39B58A

split-complementary

#4C39B5 #B58A39 #64B539

monochromatic

#251C58 #382A86 #4C39B5 #705FCD #998DDB

Accessibility & contrast

On white

8.20

#4C39B5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#4C39B5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4C39B5

8.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C39B5	#FFFFFF	#000000	##FFFFFF
##4C39B5	1.00	8.20	2.56	8.20
#FFFFFF	8.20	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053B9

Deuteranopia (green-blind)

#004BB3

Tritanopia (blue-blind)

#105972

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #4c39b5;
/* rgb */ color: rgb(76, 57, 181);
/* oklch */ color: oklch(44.5% 0.186 282.8);

Tailwind

colors: {
  custom: {
    50: '#8971cc',
    500: '#4c39b5',
    950: '#000000',
  },
}

SCSS

$custom: #4c39b5;
$custom-light: #8971cc;
$custom-dark: #000000;

JSON

{
  "hex": "#4c39b5",
  "rgb": {
    "r": 76,
    "g": 57,
    "b": 181
  },
  "hsl": {
    "h": 249.194,
    "s": 52.101,
    "l": 46.667
  },
  "oklch": {
    "l": 0.44549,
    "c": 0.18601,
    "h": 282.8
  },
  "luminance": 0.07799
}

Semantic roles & 50–950 ramp

primary

#4C39B5

secondary

#BCC684

accent

#DC4CC6

background

#F9F6FC

surface

#F1ECF9

border

#CBC7D2

text

#0D0813

muted

#7E7B82

Preview Lab

Preview with #4C39B5

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

Preview Lab → · Contrast checker → · Palette generator →