#333AAC#333AAC

#333AAC is a dark, vivid blue. Relative luminance 0.067; OKLCH L 42.1% C 0.179 H 273.1°. Best body text is #FFFFFF at 8.97:1 contrast (WCAG AA passes).

Color values

HEX	#333AAC
RGB	rgb(51, 58, 172)
HSL	hsl(237, 54%, 44%)
HSV	hsv(237, 70%, 67%)
CMYK	cmyk(70.3%, 66.3%, 0%, 32.5%)
CIE-LAB	lab(31.13, 35.40, -61.71)
CIE-LCH	lch(31.13, 71.14, 299.84°)
OKLab	oklab(42.08% 0.0097 -0.1782)
OKLCH	oklch(42.08% 0.179 273.1)
XYZ	xyz(10.3222, 6.7075, 39.7724)
Luminance	0.0671 (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

#333AAC #ACA533

analogous

#3376AC #333AAC #6833AC

triadic

#333AAC #AC333A #3AAC33

tetradic

#333AAC #AC3376 #ACA533 #33AC68

square

#333AAC #AC3376 #ACA533 #33AC68

split-complementary

#333AAC #AC6833 #76AC33

monochromatic

#171A4E #252A7D #333AAC #5158CB #8085D9

Accessibility & contrast

On white

8.97

#333AAC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#333AAC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333AAC

8.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333AAC	#FFFFFF	#000000	##FFFFFF
##333AAC	1.00	8.97	2.34	8.97
#FFFFFF	8.97	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FB0

Deuteranopia (green-blind)

#0044AA

Tritanopia (blue-blind)

#00586E

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #333aac;
/* rgb */ color: rgb(51, 58, 172);
/* oklch */ color: oklch(42.1% 0.179 273.1);

Tailwind

colors: {
  custom: {
    50: '#7b70c6',
    500: '#333aac',
    950: '#000000',
  },
}

SCSS

$custom: #333aac;
$custom-light: #7b70c6;
$custom-dark: #000000;

JSON

{
  "hex": "#333aac",
  "rgb": {
    "r": 51,
    "g": 58,
    "b": 172
  },
  "hsl": {
    "h": 236.529,
    "s": 54.26,
    "l": 43.725
  },
  "oklch": {
    "l": 0.42075,
    "c": 0.17851,
    "h": 273.1
  },
  "luminance": 0.06708
}

Semantic roles & 50–950 ramp

primary

#333AAC

secondary

#C2BE78

accent

#D54ADE

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #333AAC

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

Preview Lab → · Contrast checker → · Palette generator →