#303B96#303B96

#303B96 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.1% C 0.148 H 272.6°. Best body text is #FFFFFF at 9.58:1 contrast (WCAG AA passes).

Color values

HEX	#303B96
RGB	rgb(48, 59, 150)
HSL	hsl(234, 52%, 39%)
HSV	hsv(234, 68%, 59%)
CMYK	cmyk(68%, 60.7%, 0%, 41.2%)
CIE-LAB	lab(29.31, 26.42, -51.39)
CIE-LCH	lch(29.31, 57.79, 297.21°)
OKLab	oklab(40.1% 0.0066 -0.1481)
OKLCH	oklch(40.1% 0.148 272.6)
XYZ	xyz(8.2861, 5.9576, 29.5615)
Luminance	0.0596 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#303B96 #968B30

analogous

#306E96 #303B96 #583096

triadic

#303B96 #96303B #3B9630

tetradic

#303B96 #96306E #968B30 #309658

square

#303B96 #96306E #968B30 #309658

split-complementary

#303B96 #965830 #6E9630

monochromatic

#121739 #212968 #303B96 #414FC2 #6F7AD1

Accessibility & contrast

On white

9.58

#303B96 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#303B96 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303B96

9.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303B96	#FFFFFF	#000000	##FFFFFF
##303B96	1.00	9.58	2.19	9.58
#FFFFFF	9.58	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A99

Deuteranopia (green-blind)

#004194

Tritanopia (blue-blind)

#005262

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #303b96;
/* rgb */ color: rgb(48, 59, 150);
/* oklch */ color: oklch(40.1% 0.148 272.6);

Tailwind

colors: {
  custom: {
    50: '#7570b6',
    500: '#303b96',
    950: '#000000',
  },
}

SCSS

$custom: #303b96;
$custom-light: #7570b6;
$custom-dark: #000000;

JSON

{
  "hex": "#303b96",
  "rgb": {
    "r": 48,
    "g": 59,
    "b": 150
  },
  "hsl": {
    "h": 233.529,
    "s": 51.515,
    "l": 38.824
  },
  "oklch": {
    "l": 0.40098,
    "c": 0.14821,
    "h": 272.6
  },
  "luminance": 0.05958
}

Semantic roles & 50–950 ramp

primary

#303B96

secondary

#B9B069

accent

#CC4DDB

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #303B96

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

Preview Lab → · Contrast checker → · Palette generator →