#4337B3#4337B3

#4337B3 is a dark, vivid blue. Relative luminance 0.072; OKLCH L 43.3% C 0.187 H 279.5°. Best body text is #FFFFFF at 8.62:1 contrast (WCAG AA passes).

Color values

HEX	#4337B3
RGB	rgb(67, 55, 179)
HSL	hsl(246, 53%, 46%)
HSV	hsv(246, 69%, 70%)
CMYK	cmyk(62.6%, 69.3%, 0%, 29.8%)
CIE-LAB	lab(32.21, 41.73, -64.07)
CIE-LCH	lch(32.21, 76.46, 303.08°)
OKLab	oklab(43.34% 0.0309 -0.1847)
OKLCH	oklch(43.34% 0.187 279.5)
XYZ	xyz(11.8150, 7.1794, 43.4022)
Luminance	0.0718 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 3.20

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4337B3 #A7B337

analogous

#3769B3 #4337B3 #8137B3

triadic

#4337B3 #B34337 #37B343

tetradic

#4337B3 #B33769 #A7B337 #37B381

square

#4337B3 #B33769 #A7B337 #37B381

split-complementary

#4337B3 #B38137 #69B337

monochromatic

#201A55 #312984 #4337B3 #665BCD #918ADB

Accessibility & contrast

On white

8.62

#4337B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#4337B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4337B3

8.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4337B3	#FFFFFF	#000000	##FFFFFF
##4337B3	1.00	8.62	2.44	8.62
#FFFFFF	8.62	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050B7

Deuteranopia (green-blind)

#0047B1

Tritanopia (blue-blind)

#005871

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #4337b3;
/* rgb */ color: rgb(67, 55, 179);
/* oklch */ color: oklch(43.3% 0.187 279.5);

Tailwind

colors: {
  custom: {
    50: '#846fcb',
    500: '#4337b3',
    950: '#000000',
  },
}

SCSS

$custom: #4337b3;
$custom-light: #846fcb;
$custom-dark: #000000;

JSON

{
  "hex": "#4337b3",
  "rgb": {
    "r": 67,
    "g": 55,
    "b": 179
  },
  "hsl": {
    "h": 245.806,
    "s": 52.991,
    "l": 45.882
  },
  "oklch": {
    "l": 0.4334,
    "c": 0.1873,
    "h": 279.5
  },
  "luminance": 0.0718
}

Semantic roles & 50–950 ramp

primary

#4337B3

secondary

#BEC581

accent

#DC4BCE

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #4337B3

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

Preview Lab → · Contrast checker → · Palette generator →