#333AA5#333AA5

#333AA5 is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.4% C 0.169 H 273.5°. Best body text is #FFFFFF at 9.17:1 contrast (WCAG AA passes).

Color values

HEX	#333AA5
RGB	rgb(51, 58, 165)
HSL	hsl(236, 53%, 42%)
HSV	hsv(236, 69%, 65%)
CMYK	cmyk(69.1%, 64.8%, 0%, 35.3%)
CIE-LAB	lab(30.51, 32.92, -58.52)
CIE-LCH	lch(30.51, 67.15, 299.36°)
OKLab	oklab(41.43% 0.0102 -0.1689)
OKLCH	oklch(41.43% 0.169 273.5)
XYZ	xyz(9.6676, 6.4456, 36.3247)
Luminance	0.0645 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333AA5 #A59E33

analogous

#3373A5 #333AA5 #6533A5

triadic

#333AA5 #A5333A #3AA533

tetradic

#333AA5 #A53373 #A59E33 #33A565

square

#333AA5 #A53373 #A59E33 #33A565

split-complementary

#333AA5 #A56533 #73A533

monochromatic

#161948 #252A76 #333AA5 #4D55C8 #7C81D6

Accessibility & contrast

On white

9.17

#333AA5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#333AA5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333AA5

9.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333AA5	#FFFFFF	#000000	##FFFFFF
##333AA5	1.00	9.17	2.29	9.17
#FFFFFF	9.17	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DA8

Deuteranopia (green-blind)

#0043A3

Tritanopia (blue-blind)

#00566A

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #333aa5;
/* rgb */ color: rgb(51, 58, 165);
/* oklch */ color: oklch(41.4% 0.169 273.5);

Tailwind

colors: {
  custom: {
    50: '#7a70c1',
    500: '#333aa5',
    950: '#000000',
  },
}

SCSS

$custom: #333aa5;
$custom-light: #7a70c1;
$custom-dark: #000000;

JSON

{
  "hex": "#333aa5",
  "rgb": {
    "r": 51,
    "g": 58,
    "b": 165
  },
  "hsl": {
    "h": 236.316,
    "s": 52.778,
    "l": 42.353
  },
  "oklch": {
    "l": 0.41429,
    "c": 0.16923,
    "h": 273.5
  },
  "luminance": 0.06447
}

Semantic roles & 50–950 ramp

primary

#333AA5

secondary

#BFBB75

accent

#D34CDC

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #333AA5

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

Preview Lab → · Contrast checker → · Palette generator →