#303C96#303C96

#303C96 is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.3% C 0.147 H 272.2°. Best body text is #FFFFFF at 9.49:1 contrast (WCAG AA passes).

Color values

HEX	#303C96
RGB	rgb(48, 60, 150)
HSL	hsl(233, 52%, 39%)
HSV	hsv(233, 68%, 59%)
CMYK	cmyk(68%, 60%, 0%, 41.2%)
CIE-LAB	lab(29.57, 25.76, -50.97)
CIE-LCH	lch(29.57, 57.11, 296.81°)
OKLab	oklab(40.29% 0.0057 -0.1468)
OKLCH	oklch(40.29% 0.147 272.2)
XYZ	xyz(8.3380, 6.0613, 29.5788)
Luminance	0.0606 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#303C96 #968A30

analogous

#306F96 #303C96 #573096

triadic

#303C96 #96303C #3C9630

tetradic

#303C96 #96306F #968A30 #309657

square

#303C96 #96306F #968A30 #309657

split-complementary

#303C96 #965730 #6F9630

monochromatic

#121739 #212968 #303C96 #4150C2 #6F7BD1

Accessibility & contrast

On white

9.49

#303C96 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#303C96 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303C96

9.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303C96	#FFFFFF	#000000	##FFFFFF
##303C96	1.00	9.49	2.21	9.49
#FFFFFF	9.49	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A99

Deuteranopia (green-blind)

#004194

Tritanopia (blue-blind)

#005263

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #303c96;
/* rgb */ color: rgb(48, 60, 150);
/* oklch */ color: oklch(40.3% 0.147 272.2);

Tailwind

colors: {
  custom: {
    50: '#7571b6',
    500: '#303c96',
    950: '#000000',
  },
}

SCSS

$custom: #303c96;
$custom-light: #7571b6;
$custom-dark: #000000;

JSON

{
  "hex": "#303c96",
  "rgb": {
    "r": 48,
    "g": 60,
    "b": 150
  },
  "hsl": {
    "h": 232.941,
    "s": 51.515,
    "l": 38.824
  },
  "oklch": {
    "l": 0.40292,
    "c": 0.14691,
    "h": 272.2
  },
  "luminance": 0.06062
}

Semantic roles & 50–950 ramp

primary

#303C96

secondary

#B9AF69

accent

#CA4DDB

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #303C96

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

Preview Lab → · Contrast checker → · Palette generator →