#304A91#304A91

#304A91 is a dark, vivid blue. Relative luminance 0.076; OKLCH L 42.8% C 0.121 H 266.3°. Best body text is #FFFFFF at 8.35:1 contrast (WCAG AA passes).

Color values

HEX	#304A91
RGB	rgb(48, 74, 145)
HSL	hsl(224, 50%, 38%)
HSV	hsv(224, 67%, 57%)
CMYK	cmyk(66.9%, 49%, 0%, 43.1%)
CIE-LAB	lab(33.07, 14.49, -42.25)
CIE-LCH	lch(33.07, 44.66, 288.93°)
OKLab	oklab(42.82% -0.0079 -0.121)
OKLCH	oklch(42.82% 0.121 266.3)
XYZ	xyz(8.7768, 7.5695, 27.7811)
Luminance	0.0757 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304A91 #917730

analogous

#307A91 #304A91 #473091

triadic

#304A91 #91304A #4A9130

tetradic

#304A91 #91307A #917730 #309147

square

#304A91 #91307A #917730 #309147

split-complementary

#304A91 #914730 #7A9130

monochromatic

#121B35 #213363 #304A91 #3F61BF #6D87CF

Accessibility & contrast

On white

8.35

#304A91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#304A91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304A91

8.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304A91	#FFFFFF	#000000	##FFFFFF
##304A91	1.00	8.35	2.51	8.35
#FFFFFF	8.35	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#255294

Deuteranopia (green-blind)

#104A90

Tritanopia (blue-blind)

#005A66

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #304a91;
/* rgb */ color: rgb(48, 74, 145);
/* oklch */ color: oklch(42.8% 0.121 266.3);

Tailwind

colors: {
  custom: {
    50: '#737cb2',
    500: '#304a91',
    950: '#000000',
  },
}

SCSS

$custom: #304a91;
$custom-light: #737cb2;
$custom-dark: #000000;

JSON

{
  "hex": "#304a91",
  "rgb": {
    "r": 48,
    "g": 74,
    "b": 145
  },
  "hsl": {
    "h": 223.918,
    "s": 50.259,
    "l": 37.843
  },
  "oklch": {
    "l": 0.42815,
    "c": 0.12122,
    "h": 266.3
  },
  "luminance": 0.0757
}

Semantic roles & 50–950 ramp

primary

#304A91

secondary

#B6A167

accent

#B44EDA

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090911

muted

#7B7B80

Preview Lab

Preview with #304A91

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

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