#303388#303388

#303388 is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.4% C 0.139 H 275.8°. Best body text is #FFFFFF at 10.74:1 contrast (WCAG AA passes).

Color values

HEX	#303388
RGB	rgb(48, 51, 136)
HSL	hsl(238, 48%, 36%)
HSV	hsv(238, 65%, 53%)
CMYK	cmyk(64.7%, 62.5%, 0%, 46.7%)
CIE-LAB	lab(26.08, 26.66, -48.01)
CIE-LCH	lch(26.08, 54.91, 299.04°)
OKLab	oklab(37.35% 0.0141 -0.1382)
OKLCH	oklch(37.35% 0.139 275.8)
XYZ	xyz(6.8452, 4.7730, 23.8483)
Luminance	0.0477 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#303388 #888530

analogous

#305F88 #303388 #593088

triadic

#303388 #883033 #338830

tetradic

#303388 #88305F #888530 #308859

square

#303388 #88305F #888530 #308859

split-complementary

#303388 #885930 #5F8830

monochromatic

#10112E #20225B #303388 #4044B5 #696CCA

Accessibility & contrast

On white

10.74

#303388 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#303388 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303388

10.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303388	#FFFFFF	#000000	##FFFFFF
##303388	1.00	10.74	1.95	10.74
#FFFFFF	10.74	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00428B

Deuteranopia (green-blind)

#003A86

Tritanopia (blue-blind)

#004858

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #303388;
/* rgb */ color: rgb(48, 51, 136);
/* oklch */ color: oklch(37.4% 0.139 275.8);

Tailwind

colors: {
  custom: {
    50: '#736aab',
    500: '#303388',
    950: '#000000',
  },
}

SCSS

$custom: #303388;
$custom-light: #736aab;
$custom-dark: #000000;

JSON

{
  "hex": "#303388",
  "rgb": {
    "r": 48,
    "g": 51,
    "b": 136
  },
  "hsl": {
    "h": 237.955,
    "s": 47.826,
    "l": 36.078
  },
  "oklch": {
    "l": 0.37351,
    "c": 0.13892,
    "h": 275.8
  },
  "luminance": 0.04774
}

Semantic roles & 50–950 ramp

primary

#303388

secondary

#B1AE63

accent

#D350D7

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090610

muted

#7B7A7F

Preview Lab

Preview with #303388

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

Preview Lab → · Contrast checker → · Palette generator →