#303189#303189

#303189 is a dark, vivid blue. Relative luminance 0.046; OKLCH L 37.1% C 0.143 H 276.4°. Best body text is #FFFFFF at 10.90:1 contrast (WCAG AA passes).

Color values

HEX	#303189
RGB	rgb(48, 49, 137)
HSL	hsl(239, 48%, 36%)
HSV	hsv(239, 65%, 54%)
CMYK	cmyk(65%, 64.2%, 0%, 46.3%)
CIE-LAB	lab(25.66, 28.34, -49.32)
CIE-LCH	lch(25.66, 56.88, 299.88°)
OKLab	oklab(37.07% 0.0159 -0.1421)
OKLCH	oklch(37.07% 0.143 276.4)
XYZ	xyz(6.8311, 4.6306, 24.1959)
Luminance	0.0463 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#303189 #898830

analogous

#305E89 #303189 #5C3089

triadic

#303189 #893031 #318930

tetradic

#303189 #89305E #898830 #30895C

square

#303189 #89305E #898830 #30895C

split-complementary

#303189 #895C30 #5E8930

monochromatic

#10112E #20215C #303189 #4041B6 #696ACA

Accessibility & contrast

On white

10.90

#303189 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#303189 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303189

10.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303189	#FFFFFF	#000000	##FFFFFF
##303189	1.00	10.90	1.93	10.90
#FFFFFF	10.90	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00418C

Deuteranopia (green-blind)

#003987

Tritanopia (blue-blind)

#004758

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #303189;
/* rgb */ color: rgb(48, 49, 137);
/* oklch */ color: oklch(37.1% 0.143 276.4);

Tailwind

colors: {
  custom: {
    50: '#7369ac',
    500: '#303189',
    950: '#000000',
  },
}

SCSS

$custom: #303189;
$custom-light: #7369ac;
$custom-dark: #000000;

JSON

{
  "hex": "#303189",
  "rgb": {
    "r": 48,
    "g": 49,
    "b": 137
  },
  "hsl": {
    "h": 239.326,
    "s": 48.108,
    "l": 36.275
  },
  "oklch": {
    "l": 0.37066,
    "c": 0.14295,
    "h": 276.4
  },
  "luminance": 0.04631
}

Semantic roles & 50–950 ramp

primary

#303189

secondary

#B2B163

accent

#D650D8

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090610

muted

#7B7A7F

Preview Lab

Preview with #303189

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

Preview Lab → · Contrast checker → · Palette generator →