#303589#303589

#303589 is a dark, vivid blue. Relative luminance 0.050; OKLCH L 37.8% C 0.138 H 275.1°. Best body text is #FFFFFF at 10.52:1 contrast (WCAG AA passes).

Color values

HEX	#303589
RGB	rgb(48, 53, 137)
HSL	hsl(237, 48%, 36%)
HSV	hsv(237, 65%, 54%)
CMYK	cmyk(65%, 61.3%, 0%, 46.3%)
CIE-LAB	lab(26.68, 25.69, -47.66)
CIE-LCH	lch(26.68, 54.14, 298.32°)
OKLab	oklab(37.82% 0.0122 -0.1371)
OKLCH	oklch(37.82% 0.138 275.1)
XYZ	xyz(7.0059, 4.9801, 24.2541)
Luminance	0.0498 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#303589 #898430

analogous

#306289 #303589 #583089

triadic

#303589 #893035 #358930

tetradic

#303589 #893062 #898430 #308958

square

#303589 #893062 #898430 #308958

split-complementary

#303589 #895830 #628930

monochromatic

#10122E #20235C #303589 #4047B6 #696ECA

Accessibility & contrast

On white

10.52

#303589 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#303589 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303589

10.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303589	#FFFFFF	#000000	##FFFFFF
##303589	1.00	10.52	2.00	10.52
#FFFFFF	10.52	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00438C

Deuteranopia (green-blind)

#003B87

Tritanopia (blue-blind)

#004A59

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #303589;
/* rgb */ color: rgb(48, 53, 137);
/* oklch */ color: oklch(37.8% 0.138 275.1);

Tailwind

colors: {
  custom: {
    50: '#736cac',
    500: '#303589',
    950: '#000000',
  },
}

SCSS

$custom: #303589;
$custom-light: #736cac;
$custom-dark: #000000;

JSON

{
  "hex": "#303589",
  "rgb": {
    "r": 48,
    "g": 53,
    "b": 137
  },
  "hsl": {
    "h": 236.629,
    "s": 48.108,
    "l": 36.275
  },
  "oklch": {
    "l": 0.3782,
    "c": 0.13768,
    "h": 275.1
  },
  "luminance": 0.04981
}

Semantic roles & 50–950 ramp

primary

#303589

secondary

#B2AD63

accent

#D050D8

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #303589

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

Preview Lab → · Contrast checker → · Palette generator →