#303A89#303A89

#303A89 is a dark, vivid blue. Relative luminance 0.055; OKLCH L 38.8% C 0.131 H 273.2°. Best body text is #FFFFFF at 10.04:1 contrast (WCAG AA passes).

Color values

HEX	#303A89
RGB	rgb(48, 58, 137)
HSL	hsl(233, 48%, 36%)
HSV	hsv(233, 65%, 54%)
CMYK	cmyk(65%, 57.7%, 0%, 46.3%)
CIE-LAB	lab(28.01, 22.32, -45.50)
CIE-LCH	lch(28.01, 50.68, 296.13°)
OKLab	oklab(38.81% 0.0074 -0.1307)
OKLCH	oklch(38.81% 0.131 273.2)
XYZ	xyz(7.2458, 5.4600, 24.3341)
Luminance	0.0546 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#303A89 #897F30

analogous

#306789 #303A89 #533089

triadic

#303A89 #89303A #3A8930

tetradic

#303A89 #893067 #897F30 #308953

square

#303A89 #893067 #897F30 #308953

split-complementary

#303A89 #895330 #678930

monochromatic

#10142E #20275C #303A89 #404DB6 #6974CA

Accessibility & contrast

On white

10.04

#303A89 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#303A89 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303A89

10.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303A89	#FFFFFF	#000000	##FFFFFF
##303A89	1.00	10.04	2.09	10.04
#FFFFFF	10.04	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00468C

Deuteranopia (green-blind)

#003E87

Tritanopia (blue-blind)

#004D5B

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #303a89;
/* rgb */ color: rgb(48, 58, 137);
/* oklch */ color: oklch(38.8% 0.131 273.2);

Tailwind

colors: {
  custom: {
    50: '#7370ac',
    500: '#303a89',
    950: '#000000',
  },
}

SCSS

$custom: #303a89;
$custom-light: #7370ac;
$custom-dark: #000000;

JSON

{
  "hex": "#303a89",
  "rgb": {
    "r": 48,
    "g": 58,
    "b": 137
  },
  "hsl": {
    "h": 233.258,
    "s": 48.108,
    "l": 36.275
  },
  "oklch": {
    "l": 0.38807,
    "c": 0.13095,
    "h": 273.2
  },
  "luminance": 0.05461
}

Semantic roles & 50–950 ramp

primary

#303A89

secondary

#B2A963

accent

#C850D8

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #303A89

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

Preview Lab → · Contrast checker → · Palette generator →