#303D90#303D90

#303D90 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.0% C 0.137 H 272.0°. Best body text is #FFFFFF at 9.56:1 contrast (WCAG AA passes).

Color values

HEX	#303D90
RGB	rgb(48, 61, 144)
HSL	hsl(232, 50%, 38%)
HSV	hsv(232, 67%, 56%)
CMYK	cmyk(66.7%, 57.6%, 0%, 43.5%)
CIE-LAB	lab(29.36, 22.88, -47.63)
CIE-LCH	lch(29.36, 52.84, 295.66°)
OKLab	oklab(39.99% 0.0047 -0.137)
OKLCH	oklch(39.99% 0.137 272)
XYZ	xyz(7.9200, 5.9788, 27.1168)
Luminance	0.0598 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#303D90 #908330

analogous

#306D90 #303D90 #533090

triadic

#303D90 #90303D #3D9030

tetradic

#303D90 #90306D #908330 #309053

square

#303D90 #90306D #908330 #309053

split-complementary

#303D90 #905330 #6D9030

monochromatic

#111634 #212A62 #303D90 #3F50BE #6C7ACE

Accessibility & contrast

On white

9.56

#303D90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#303D90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303D90

9.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303D90	#FFFFFF	#000000	##FFFFFF
##303D90	1.00	9.56	2.20	9.56
#FFFFFF	9.56	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A93

Deuteranopia (green-blind)

#00418E

Tritanopia (blue-blind)

#005160

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #303d90;
/* rgb */ color: rgb(48, 61, 144);
/* oklch */ color: oklch(40.0% 0.137 272.0);

Tailwind

colors: {
  custom: {
    50: '#7472b1',
    500: '#303d90',
    950: '#000000',
  },
}

SCSS

$custom: #303d90;
$custom-light: #7472b1;
$custom-dark: #000000;

JSON

{
  "hex": "#303d90",
  "rgb": {
    "r": 48,
    "g": 61,
    "b": 144
  },
  "hsl": {
    "h": 231.875,
    "s": 50,
    "l": 37.647
  },
  "oklch": {
    "l": 0.39988,
    "c": 0.13705,
    "h": 272
  },
  "luminance": 0.05979
}

Semantic roles & 50–950 ramp

primary

#303D90

secondary

#B5AB66

accent

#C74EDA

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090811

muted

#7B7B80

Preview Lab

Preview with #303D90

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

Preview Lab → · Contrast checker → · Palette generator →