#333CAF#333CAF

#333CAF is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.7% C 0.180 H 272.6°. Best body text is #FFFFFF at 8.73:1 contrast (WCAG AA passes).

Color values

HEX	#333CAF
RGB	rgb(51, 60, 175)
HSL	hsl(236, 55%, 44%)
HSV	hsv(236, 71%, 69%)
CMYK	cmyk(70.9%, 65.7%, 0%, 31.4%)
CIE-LAB	lab(31.87, 35.20, -62.28)
CIE-LCH	lch(31.87, 71.54, 299.47°)
OKLab	oklab(42.7% 0.008 -0.1799)
OKLCH	oklch(42.7% 0.18 272.6)
XYZ	xyz(10.7164, 7.0296, 41.3412)
Luminance	0.0703 (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

#333CAF #AFA633

analogous

#337AAF #333CAF #6833AF

triadic

#333CAF #AF333C #3CAF33

tetradic

#333CAF #AF337A #AFA633 #33AF68

square

#333CAF #AF337A #AFA633 #33AF68

split-complementary

#333CAF #AF6833 #7AAF33

monochromatic

#171C50 #252C80 #333CAF #525BCD #8288DB

Accessibility & contrast

On white

8.73

#333CAF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#333CAF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333CAF

8.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333CAF	#FFFFFF	#000000	##FFFFFF
##333CAF	1.00	8.73	2.41	8.73
#FFFFFF	8.73	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B3

Deuteranopia (green-blind)

#0045AD

Tritanopia (blue-blind)

#005A70

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #333caf;
/* rgb */ color: rgb(51, 60, 175);
/* oklch */ color: oklch(42.7% 0.180 272.6);

Tailwind

colors: {
  custom: {
    50: '#7c72c8',
    500: '#333caf',
    950: '#000000',
  },
}

SCSS

$custom: #333caf;
$custom-light: #7c72c8;
$custom-dark: #000000;

JSON

{
  "hex": "#333caf",
  "rgb": {
    "r": 51,
    "g": 60,
    "b": 175
  },
  "hsl": {
    "h": 235.645,
    "s": 54.867,
    "l": 44.314
  },
  "oklch": {
    "l": 0.42699,
    "c": 0.1801,
    "h": 272.6
  },
  "luminance": 0.07031
}

Semantic roles & 50–950 ramp

primary

#333CAF

secondary

#C4BE7A

accent

#D34ADE

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #333CAF

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

Preview Lab → · Contrast checker → · Palette generator →