#333FA7#333FA7

#333FA7 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.5% C 0.166 H 272.2°. Best body text is #FFFFFF at 8.71:1 contrast (WCAG AA passes).

Color values

HEX	#333FA7
RGB	rgb(51, 63, 167)
HSL	hsl(234, 53%, 43%)
HSV	hsv(234, 69%, 65%)
CMYK	cmyk(69.5%, 62.3%, 0%, 34.5%)
CIE-LAB	lab(31.92, 30.41, -57.43)
CIE-LCH	lch(31.92, 64.98, 297.91°)
OKLab	oklab(42.52% 0.0063 -0.1657)
OKLCH	oklch(42.52% 0.166 272.2)
XYZ	xyz(10.1155, 7.0479, 37.3790)
Luminance	0.0705 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333FA7 #A79B33

analogous

#3379A7 #333FA7 #6133A7

triadic

#333FA7 #A7333F #3FA733

tetradic

#333FA7 #A73379 #A79B33 #33A761

square

#333FA7 #A73379 #A79B33 #33A761

split-complementary

#333FA7 #A76133 #79A733

monochromatic

#161C49 #252D78 #333FA7 #4E5BC9 #7D86D7

Accessibility & contrast

On white

8.71

#333FA7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#333FA7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333FA7

8.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333FA7	#FFFFFF	#000000	##FFFFFF
##333FA7	1.00	8.71	2.41	8.71
#FFFFFF	8.71	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050AA

Deuteranopia (green-blind)

#0046A5

Tritanopia (blue-blind)

#00596D

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #333fa7;
/* rgb */ color: rgb(51, 63, 167);
/* oklch */ color: oklch(42.5% 0.166 272.2);

Tailwind

colors: {
  custom: {
    50: '#7a74c2',
    500: '#333fa7',
    950: '#000000',
  },
}

SCSS

$custom: #333fa7;
$custom-light: #7a74c2;
$custom-dark: #000000;

JSON

{
  "hex": "#333fa7",
  "rgb": {
    "r": 51,
    "g": 63,
    "b": 167
  },
  "hsl": {
    "h": 233.793,
    "s": 53.211,
    "l": 42.745
  },
  "oklch": {
    "l": 0.42515,
    "c": 0.16579,
    "h": 272.2
  },
  "luminance": 0.07049
}

Semantic roles & 50–950 ramp

primary

#333FA7

secondary

#C0B876

accent

#CE4BDD

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #333FA7

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

Preview Lab → · Contrast checker → · Palette generator →