#303C85#303C85

#303C85 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 38.9% C 0.122 H 272.4°. Best body text is #FFFFFF at 9.95:1 contrast (WCAG AA passes).

Color values

HEX	#303C85
RGB	rgb(48, 60, 133)
HSL	hsl(232, 47%, 35%)
HSV	hsv(232, 64%, 52%)
CMYK	cmyk(63.9%, 54.9%, 0%, 47.8%)
CIE-LAB	lab(28.26, 19.49, -42.61)
CIE-LCH	lch(28.26, 46.86, 294.58°)
OKLab	oklab(38.9% 0.0052 -0.1222)
OKLCH	oklch(38.9% 0.122 272.4)
XYZ	xyz(7.0670, 5.5530, 22.8852)
Luminance	0.0555 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#303C85 #857930

analogous

#306685 #303C85 #4E3085

triadic

#303C85 #85303C #3C8530

tetradic

#303C85 #853066 #857930 #30854E

square

#303C85 #853066 #857930 #30854E

split-complementary

#303C85 #854E30 #668530

monochromatic

#10132B #202858 #303C85 #4050B2 #6775C8

Accessibility & contrast

On white

9.95

#303C85 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#303C85 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303C85

9.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303C85	#FFFFFF	#000000	##FFFFFF
##303C85	1.00	9.95	2.11	9.95
#FFFFFF	9.95	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D4788

Deuteranopia (green-blind)

#003F83

Tritanopia (blue-blind)

#004D5A

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #303c85;
/* rgb */ color: rgb(48, 60, 133);
/* oklch */ color: oklch(38.9% 0.122 272.4);

Tailwind

colors: {
  custom: {
    50: '#7271a9',
    500: '#303c85',
    950: '#000000',
  },
}

SCSS

$custom: #303c85;
$custom-light: #7271a9;
$custom-dark: #000000;

JSON

{
  "hex": "#303c85",
  "rgb": {
    "r": 48,
    "g": 60,
    "b": 133
  },
  "hsl": {
    "h": 231.529,
    "s": 46.961,
    "l": 35.49
  },
  "oklch": {
    "l": 0.38898,
    "c": 0.12234,
    "h": 272.4
  },
  "luminance": 0.05554
}

Semantic roles & 50–950 ramp

primary

#303C85

secondary

#AFA461

accent

#C451D7

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #303C85

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

Preview Lab → · Contrast checker → · Palette generator →