#333AB9#333AB9

#333AB9 is a dark, vivid blue. Relative luminance 0.072; OKLCH L 43.3% C 0.195 H 272.5°. Best body text is #FFFFFF at 8.58:1 contrast (WCAG AA passes).

Color values

HEX	#333AB9
RGB	rgb(51, 58, 185)
HSL	hsl(237, 57%, 46%)
HSV	hsv(237, 72%, 73%)
CMYK	cmyk(72.4%, 68.6%, 0%, 27.5%)
CIE-LAB	lab(32.33, 39.93, -67.47)
CIE-LCH	lch(32.33, 78.41, 300.62°)
OKLab	oklab(43.31% 0.0084 -0.1951)
OKLCH	oklch(43.31% 0.195 272.5)
XYZ	xyz(11.6323, 7.2315, 46.6723)
Luminance	0.0723 (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

#333AB9 #B9B233

analogous

#337DB9 #333AB9 #6F33B9

triadic

#333AB9 #B9333A #3AB933

tetradic

#333AB9 #B9337D #B9B233 #33B96F

square

#333AB9 #B9337D #B9B233 #33B96F

split-complementary

#333AB9 #B96F33 #7DB933

monochromatic

#191C59 #262B89 #333AB9 #585ED1 #888DDE

Accessibility & contrast

On white

8.58

#333AB9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#333AB9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333AB9

8.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333AB9	#FFFFFF	#000000	##FFFFFF
##333AB9	1.00	8.58	2.45	8.58
#FFFFFF	8.58	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052BD

Deuteranopia (green-blind)

#0046B7

Tritanopia (blue-blind)

#005D75

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #333ab9;
/* rgb */ color: rgb(51, 58, 185);
/* oklch */ color: oklch(43.3% 0.195 272.5);

Tailwind

colors: {
  custom: {
    50: '#7e71cf',
    500: '#333ab9',
    950: '#000000',
  },
}

SCSS

$custom: #333ab9;
$custom-light: #7e71cf;
$custom-dark: #000000;

JSON

{
  "hex": "#333ab9",
  "rgb": {
    "r": 51,
    "g": 58,
    "b": 185
  },
  "hsl": {
    "h": 236.866,
    "s": 56.78,
    "l": 46.275
  },
  "oklch": {
    "l": 0.43308,
    "c": 0.1953,
    "h": 272.5
  },
  "luminance": 0.07233
}

Semantic roles & 50–950 ramp

primary

#333AB9

secondary

#C8C480

accent

#D848E0

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0B0714

muted

#7C7A82

Preview Lab

Preview with #333AB9

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

Preview Lab → · Contrast checker → · Palette generator →