#333AB8#333AB8

#333AB8 is a dark, vivid blue. Relative luminance 0.072; OKLCH L 43.2% C 0.194 H 272.5°. Best body text is #FFFFFF at 8.61:1 contrast (WCAG AA passes).

Color values

HEX	#333AB8
RGB	rgb(51, 58, 184)
HSL	hsl(237, 57%, 46%)
HSV	hsv(237, 72%, 72%)
CMYK	cmyk(72.3%, 68.5%, 0%, 27.8%)
CIE-LAB	lab(32.23, 39.59, -67.04)
CIE-LCH	lch(32.23, 77.85, 300.56°)
OKLab	oklab(43.21% 0.0085 -0.1938)
OKLCH	oklch(43.21% 0.194 272.5)
XYZ	xyz(11.5271, 7.1895, 46.1183)
Luminance	0.0719 (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

#333AB8 #B8B133

analogous

#337CB8 #333AB8 #6E33B8

triadic

#333AB8 #B8333A #3AB833

tetradic

#333AB8 #B8337C #B8B133 #33B86E

square

#333AB8 #B8337C #B8B133 #33B86E

split-complementary

#333AB8 #B86E33 #7CB833

monochromatic

#181C58 #262B88 #333AB8 #585ED1 #888CDE

Accessibility & contrast

On white

8.61

#333AB8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#333AB8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333AB8

8.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333AB8	#FFFFFF	#000000	##FFFFFF
##333AB8	1.00	8.61	2.44	8.61
#FFFFFF	8.61	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052BC

Deuteranopia (green-blind)

#0046B6

Tritanopia (blue-blind)

#005C74

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #333ab8;
/* rgb */ color: rgb(51, 58, 184);
/* oklch */ color: oklch(43.2% 0.194 272.5);

Tailwind

colors: {
  custom: {
    50: '#7e71ce',
    500: '#333ab8',
    950: '#000000',
  },
}

SCSS

$custom: #333ab8;
$custom-light: #7e71ce;
$custom-dark: #000000;

JSON

{
  "hex": "#333ab8",
  "rgb": {
    "r": 51,
    "g": 58,
    "b": 184
  },
  "hsl": {
    "h": 236.842,
    "s": 56.596,
    "l": 46.078
  },
  "oklch": {
    "l": 0.43212,
    "c": 0.19402,
    "h": 272.5
  },
  "luminance": 0.07191
}

Semantic roles & 50–950 ramp

primary

#333AB8

secondary

#C8C47F

accent

#D848E0

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0B0714

muted

#7C7A82

Preview Lab

Preview with #333AB8

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

Preview Lab → · Contrast checker → · Palette generator →