#333AAB#333AAB

#333AAB is a dark, vivid blue. Relative luminance 0.067; OKLCH L 42.0% C 0.177 H 273.2°. Best body text is #FFFFFF at 9.00:1 contrast (WCAG AA passes).

Color values

HEX	#333AAB
RGB	rgb(51, 58, 171)
HSL	hsl(237, 54%, 44%)
HSV	hsv(237, 70%, 67%)
CMYK	cmyk(70.2%, 66.1%, 0%, 32.9%)
CIE-LAB	lab(31.04, 35.05, -61.25)
CIE-LCH	lch(31.04, 70.57, 299.78°)
OKLab	oklab(41.98% 0.0098 -0.1769)
OKLCH	oklch(41.98% 0.177 273.2)
XYZ	xyz(10.2265, 6.6692, 39.2685)
Luminance	0.0667 (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

#333AAB #ABA433

analogous

#3376AB #333AAB #6833AB

triadic

#333AAB #AB333A #3AAB33

tetradic

#333AAB #AB3376 #ABA433 #33AB68

square

#333AAB #AB3376 #ABA433 #33AB68

split-complementary

#333AAB #AB6833 #76AB33

monochromatic

#171A4D #252A7C #333AAB #5057CB #7F85D9

Accessibility & contrast

On white

9.00

#333AAB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#333AAB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333AAB

9.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333AAB	#FFFFFF	#000000	##FFFFFF
##333AAB	1.00	9.00	2.33	9.00
#FFFFFF	9.00	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FAF

Deuteranopia (green-blind)

#0044A9

Tritanopia (blue-blind)

#00586D

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #333aab;
/* rgb */ color: rgb(51, 58, 171);
/* oklch */ color: oklch(42.0% 0.177 273.2);

Tailwind

colors: {
  custom: {
    50: '#7b70c5',
    500: '#333aab',
    950: '#000000',
  },
}

SCSS

$custom: #333aab;
$custom-light: #7b70c5;
$custom-dark: #000000;

JSON

{
  "hex": "#333aab",
  "rgb": {
    "r": 51,
    "g": 58,
    "b": 171
  },
  "hsl": {
    "h": 236.5,
    "s": 54.054,
    "l": 43.529
  },
  "oklch": {
    "l": 0.41982,
    "c": 0.1772,
    "h": 273.2
  },
  "luminance": 0.0667
}

Semantic roles & 50–950 ramp

primary

#333AAB

secondary

#C2BE78

accent

#D54ADD

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #333AAB

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

Preview Lab → · Contrast checker → · Palette generator →