#333D8A#333D8A

#333D8A is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.7% C 0.127 H 273.5°. Best body text is #FFFFFF at 9.65:1 contrast (WCAG AA passes).

Color values

HEX	#333D8A
RGB	rgb(51, 61, 138)
HSL	hsl(233, 46%, 37%)
HSV	hsv(233, 63%, 54%)
CMYK	cmyk(63%, 55.8%, 0%, 45.9%)
CIE-LAB	lab(29.10, 21.21, -44.34)
CIE-LCH	lch(29.10, 49.16, 295.57°)
OKLab	oklab(39.7% 0.0079 -0.1272)
OKLCH	oklch(39.7% 0.127 273.5)
XYZ	xyz(7.6199, 5.8757, 24.7724)
Luminance	0.0588 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333D8A #8A8033

analogous

#33698A #333D8A #54338A

triadic

#333D8A #8A333D #3D8A33

tetradic

#333D8A #8A3369 #8A8033 #338A54

square

#333D8A #8A3369 #8A8033 #338A54

split-complementary

#333D8A #8A5433 #698A33

monochromatic

#121531 #22295D #333D8A #4451B7 #6E78C9

Accessibility & contrast

On white

9.65

#333D8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#333D8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333D8A

9.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333D8A	#FFFFFF	#000000	##FFFFFF
##333D8A	1.00	9.65	2.18	9.65
#FFFFFF	9.65	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#07488D

Deuteranopia (green-blind)

#004188

Tritanopia (blue-blind)

#004F5D

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #333d8a;
/* rgb */ color: rgb(51, 61, 138);
/* oklch */ color: oklch(39.7% 0.127 273.5);

Tailwind

colors: {
  custom: {
    50: '#7472ad',
    500: '#333d8a',
    950: '#000000',
  },
}

SCSS

$custom: #333d8a;
$custom-light: #7472ad;
$custom-dark: #000000;

JSON

{
  "hex": "#333d8a",
  "rgb": {
    "r": 51,
    "g": 61,
    "b": 138
  },
  "hsl": {
    "h": 233.103,
    "s": 46.032,
    "l": 37.059
  },
  "oklch": {
    "l": 0.39698,
    "c": 0.12747,
    "h": 273.5
  },
  "luminance": 0.05876
}

Semantic roles & 50–950 ramp

primary

#333D8A

secondary

#B1A967

accent

#C752D6

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#090810

muted

#7B7B7F

Preview Lab

Preview with #333D8A

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

Preview Lab → · Contrast checker → · Palette generator →