#4337B5#4337B5

#4337B5 is a dark, vivid blue. Relative luminance 0.073; OKLCH L 43.5% C 0.190 H 279.3°. Best body text is #FFFFFF at 8.56:1 contrast (WCAG AA passes).

Color values

HEX	#4337B5
RGB	rgb(67, 55, 181)
HSL	hsl(246, 53%, 46%)
HSV	hsv(246, 70%, 71%)
CMYK	cmyk(63%, 69.6%, 0%, 29%)
CIE-LAB	lab(32.39, 42.37, -64.96)
CIE-LCH	lch(32.39, 77.55, 303.12°)
OKLab	oklab(43.53% 0.0306 -0.1873)
OKLCH	oklch(43.53% 0.19 279.3)
XYZ	xyz(12.0188, 7.2609, 44.4753)
Luminance	0.0726 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 3.18

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4337B5 #A9B537

analogous

#376AB5 #4337B5 #8237B5

triadic

#4337B5 #B54337 #37B543

tetradic

#4337B5 #B5376A #A9B537 #37B582

square

#4337B5 #B5376A #A9B537 #37B582

split-complementary

#4337B5 #B58237 #6AB537

monochromatic

#201A57 #322986 #4337B5 #675CCD #928BDC

Accessibility & contrast

On white

8.56

#4337B5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#4337B5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4337B5

8.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4337B5	#FFFFFF	#000000	##FFFFFF
##4337B5	1.00	8.56	2.45	8.56
#FFFFFF	8.56	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B9

Deuteranopia (green-blind)

#0047B3

Tritanopia (blue-blind)

#005972

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #4337b5;
/* rgb */ color: rgb(67, 55, 181);
/* oklch */ color: oklch(43.5% 0.190 279.3);

Tailwind

colors: {
  custom: {
    50: '#856fcc',
    500: '#4337b5',
    950: '#000000',
  },
}

SCSS

$custom: #4337b5;
$custom-light: #856fcc;
$custom-dark: #000000;

JSON

{
  "hex": "#4337b5",
  "rgb": {
    "r": 67,
    "g": 55,
    "b": 181
  },
  "hsl": {
    "h": 245.714,
    "s": 53.39,
    "l": 46.275
  },
  "oklch": {
    "l": 0.43526,
    "c": 0.18982,
    "h": 279.3
  },
  "luminance": 0.07262
}

Semantic roles & 50–950 ramp

primary

#4337B5

secondary

#BFC682

accent

#DD4BCF

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #4337B5

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

Preview Lab → · Contrast checker → · Palette generator →