#333EA3#333EA3

#333EA3 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.0% C 0.162 H 272.6°. Best body text is #FFFFFF at 8.90:1 contrast (WCAG AA passes).

Color values

HEX	#333EA3
RGB	rgb(51, 62, 163)
HSL	hsl(234, 52%, 42%)
HSV	hsv(234, 69%, 64%)
CMYK	cmyk(68.7%, 62%, 0%, 36.1%)
CIE-LAB	lab(31.33, 29.62, -55.98)
CIE-LCH	lch(31.33, 63.33, 297.89°)
OKLab	oklab(41.98% 0.0072 -0.1614)
OKLCH	oklch(41.98% 0.162 272.6)
XYZ	xyz(9.6965, 6.7925, 35.4433)
Luminance	0.0679 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333EA3 #A39833

analogous

#3376A3 #333EA3 #6033A3

triadic

#333EA3 #A3333E #3EA333

tetradic

#333EA3 #A33376 #A39833 #33A360

square

#333EA3 #A33376 #A39833 #33A360

split-complementary

#333EA3 #A36033 #76A333

monochromatic

#161B46 #242C74 #333EA3 #4C58C7 #7B84D6

Accessibility & contrast

On white

8.90

#333EA3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#333EA3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333EA3

8.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333EA3	#FFFFFF	#000000	##FFFFFF
##333EA3	1.00	8.90	2.36	8.90
#FFFFFF	8.90	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FA6

Deuteranopia (green-blind)

#0045A1

Tritanopia (blue-blind)

#00576A

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #333ea3;
/* rgb */ color: rgb(51, 62, 163);
/* oklch */ color: oklch(42.0% 0.162 272.6);

Tailwind

colors: {
  custom: {
    50: '#7973bf',
    500: '#333ea3',
    950: '#000000',
  },
}

SCSS

$custom: #333ea3;
$custom-light: #7973bf;
$custom-dark: #000000;

JSON

{
  "hex": "#333ea3",
  "rgb": {
    "r": 51,
    "g": 62,
    "b": 163
  },
  "hsl": {
    "h": 234.107,
    "s": 52.336,
    "l": 41.961
  },
  "oklch": {
    "l": 0.41979,
    "c": 0.16158,
    "h": 272.6
  },
  "luminance": 0.06793
}

Semantic roles & 50–950 ramp

primary

#333EA3

secondary

#BEB773

accent

#CE4CDC

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #333EA3

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

Preview Lab → · Contrast checker → · Palette generator →