#4333B9#4333B9

#4333B9 is a dark, vivid blue. Relative luminance 0.071; OKLCH L 43.3% C 0.199 H 279.5°. Best body text is #FFFFFF at 8.70:1 contrast (WCAG AA passes).

Color values

HEX	#4333B9
RGB	rgb(67, 51, 185)
HSL	hsl(247, 57%, 46%)
HSV	hsv(247, 72%, 73%)
CMYK	cmyk(63.8%, 72.4%, 0%, 27.5%)
CIE-LAB	lab(31.95, 45.90, -68.06)
CIE-LCH	lch(31.95, 82.09, 304.00°)
OKLab	oklab(43.32% 0.0327 -0.1964)
OKLCH	oklch(43.32% 0.199 279.5)
XYZ	xyz(12.2527, 7.0628, 46.6071)
Luminance	0.0706 (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

#4333B9 #A9B933

analogous

#3366B9 #4333B9 #8633B9

triadic

#4333B9 #B94333 #33B943

tetradic

#4333B9 #B93366 #A9B933 #33B986

square

#4333B9 #B93366 #A9B933 #33B986

split-complementary

#4333B9 #B98633 #66B933

monochromatic

#201959 #322689 #4333B9 #6758D1 #9288DE

Accessibility & contrast

On white

8.70

#4333B9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#4333B9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4333B9

8.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4333B9	#FFFFFF	#000000	##FFFFFF
##4333B9	1.00	8.70	2.41	8.70
#FFFFFF	8.70	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050BD

Deuteranopia (green-blind)

#0046B7

Tritanopia (blue-blind)

#005873

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #4333b9;
/* rgb */ color: rgb(67, 51, 185);
/* oklch */ color: oklch(43.3% 0.199 279.5);

Tailwind

colors: {
  custom: {
    50: '#866dcf',
    500: '#4333b9',
    950: '#000000',
  },
}

SCSS

$custom: #4333b9;
$custom-light: #866dcf;
$custom-dark: #000000;

JSON

{
  "hex": "#4333b9",
  "rgb": {
    "r": 67,
    "g": 51,
    "b": 185
  },
  "hsl": {
    "h": 247.164,
    "s": 56.78,
    "l": 46.275
  },
  "oklch": {
    "l": 0.43322,
    "c": 0.1991,
    "h": 279.5
  },
  "luminance": 0.07064
}

Semantic roles & 50–950 ramp

primary

#4333B9

secondary

#BFC880

accent

#E048CE

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #4333B9

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

Preview Lab → · Contrast checker → · Palette generator →