#333D8D#333D8D

#333D8D is a dark, vivid blue. Relative luminance 0.060; OKLCH L 39.9% C 0.132 H 273.5°. Best body text is #FFFFFF at 9.58:1 contrast (WCAG AA passes).

Color values

HEX	#333D8D
RGB	rgb(51, 61, 141)
HSL	hsl(233, 47%, 38%)
HSV	hsv(233, 64%, 55%)
CMYK	cmyk(63.8%, 56.7%, 0%, 44.7%)
CIE-LAB	lab(29.32, 22.30, -45.83)
CIE-LCH	lch(29.32, 50.97, 295.95°)
OKLab	oklab(39.94% 0.008 -0.1316)
OKLCH	oklch(39.94% 0.132 273.5)
XYZ	xyz(7.8401, 5.9637, 25.9321)
Luminance	0.0596 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333D8D #8D8333

analogous

#336A8D #333D8D #56338D

triadic

#333D8D #8D333D #3D8D33

tetradic

#333D8D #8D336A #8D8333 #338D56

square

#333D8D #8D336A #8D8333 #338D56

split-complementary

#333D8D #8D5633 #6A8D33

monochromatic

#121633 #232A60 #333D8D #4350BA #6F7ACB

Accessibility & contrast

On white

9.58

#333D8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#333D8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333D8D

9.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333D8D	#FFFFFF	#000000	##FFFFFF
##333D8D	1.00	9.58	2.19	9.58
#FFFFFF	9.58	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004990

Deuteranopia (green-blind)

#00418B

Tritanopia (blue-blind)

#00505F

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #333d8d;
/* rgb */ color: rgb(51, 61, 141);
/* oklch */ color: oklch(39.9% 0.132 273.5);

Tailwind

colors: {
  custom: {
    50: '#7572af',
    500: '#333d8d',
    950: '#000000',
  },
}

SCSS

$custom: #333d8d;
$custom-light: #7572af;
$custom-dark: #000000;

JSON

{
  "hex": "#333d8d",
  "rgb": {
    "r": 51,
    "g": 61,
    "b": 141
  },
  "hsl": {
    "h": 233.333,
    "s": 46.875,
    "l": 37.647
  },
  "oklch": {
    "l": 0.39938,
    "c": 0.13186,
    "h": 273.5
  },
  "luminance": 0.05964
}

Semantic roles & 50–950 ramp

primary

#333D8D

secondary

#B3AB69

accent

#C851D7

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#090810

muted

#7B7B7F

Preview Lab

Preview with #333D8D

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

Preview Lab → · Contrast checker → · Palette generator →