#333F8A#333F8A

#333F8A is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.1% C 0.125 H 272.7°. Best body text is #FFFFFF at 9.46:1 contrast (WCAG AA passes).

Color values

HEX	#333F8A
RGB	rgb(51, 63, 138)
HSL	hsl(232, 46%, 37%)
HSV	hsv(232, 63%, 54%)
CMYK	cmyk(63%, 54.3%, 0%, 45.9%)
CIE-LAB	lab(29.65, 19.87, -43.45)
CIE-LCH	lch(29.65, 47.78, 294.57°)
OKLab	oklab(40.11% 0.0058 -0.1246)
OKLCH	oklch(40.11% 0.125 272.7)
XYZ	xyz(7.7287, 6.0932, 24.8086)
Luminance	0.0609 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#333F8A #8A7E33

analogous

#336B8A #333F8A #53338A

triadic

#333F8A #8A333F #3F8A33

tetradic

#333F8A #8A336B #8A7E33 #338A53

square

#333F8A #8A336B #8A7E33 #338A53

split-complementary

#333F8A #8A5333 #6B8A33

monochromatic

#121631 #222B5D #333F8A #4453B7 #6E7BC9

Accessibility & contrast

On white

9.46

#333F8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#333F8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #333F8A

9.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##333F8A	#FFFFFF	#000000	##FFFFFF
##333F8A	1.00	9.46	2.22	9.46
#FFFFFF	9.46	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#104A8D

Deuteranopia (green-blind)

#004288

Tritanopia (blue-blind)

#00505E

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #333f8a;
/* rgb */ color: rgb(51, 63, 138);
/* oklch */ color: oklch(40.1% 0.125 272.7);

Tailwind

colors: {
  custom: {
    50: '#7473ad',
    500: '#333f8a',
    950: '#000000',
  },
}

SCSS

$custom: #333f8a;
$custom-light: #7473ad;
$custom-dark: #000000;

JSON

{
  "hex": "#333f8a",
  "rgb": {
    "r": 51,
    "g": 63,
    "b": 138
  },
  "hsl": {
    "h": 231.724,
    "s": 46.032,
    "l": 37.059
  },
  "oklch": {
    "l": 0.40111,
    "c": 0.12473,
    "h": 272.7
  },
  "luminance": 0.06094
}

Semantic roles & 50–950 ramp

primary

#333F8A

secondary

#B1A767

accent

#C452D6

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#090810

muted

#7B7B7F

Preview Lab

Preview with #333F8A

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

Preview Lab → · Contrast checker → · Palette generator →