#304699#304699

#304699 is a dark, vivid blue. Relative luminance 0.073; OKLCH L 42.6% C 0.138 H 268.7°. Best body text is #FFFFFF at 8.53:1 contrast (WCAG AA passes).

Color values

HEX	#304699
RGB	rgb(48, 70, 153)
HSL	hsl(227, 52%, 39%)
HSV	hsv(227, 69%, 60%)
CMYK	cmyk(68.6%, 54.2%, 0%, 40%)
CIE-LAB	lab(32.50, 20.17, -48.04)
CIE-LCH	lch(32.50, 52.10, 292.78°)
OKLab	oklab(42.56% -0.0031 -0.1381)
OKLCH	oklch(42.56% 0.138 268.7)
XYZ	xyz(9.1569, 7.3077, 31.0588)
Luminance	0.0731 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304699 #998330

analogous

#307B99 #304699 #4F3099

triadic

#304699 #993046 #469930

tetradic

#304699 #99307B #998330 #30994F

square

#304699 #99307B #998330 #30994F

split-complementary

#304699 #994F30 #7B9930

monochromatic

#131B3C #21316A #304699 #425DC4 #7185D2

Accessibility & contrast

On white

8.53

#304699 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#304699 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304699

8.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304699	#FFFFFF	#000000	##FFFFFF
##304699	1.00	8.53	2.46	8.53
#FFFFFF	8.53	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C519C

Deuteranopia (green-blind)

#004897

Tritanopia (blue-blind)

#005A68

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #304699;
/* rgb */ color: rgb(48, 70, 153);
/* oklch */ color: oklch(42.6% 0.138 268.7);

Tailwind

colors: {
  custom: {
    50: '#7579b8',
    500: '#304699',
    950: '#000000',
  },
}

SCSS

$custom: #304699;
$custom-light: #7579b8;
$custom-dark: #000000;

JSON

{
  "hex": "#304699",
  "rgb": {
    "r": 48,
    "g": 70,
    "b": 153
  },
  "hsl": {
    "h": 227.429,
    "s": 52.239,
    "l": 39.412
  },
  "oklch": {
    "l": 0.42559,
    "c": 0.1381,
    "h": 268.7
  },
  "luminance": 0.07309
}

Semantic roles & 50–950 ramp

primary

#304699

secondary

#BAA96B

accent

#BE4CDC

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#090911

muted

#7B7B80

Preview Lab

Preview with #304699

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

Preview Lab → · Contrast checker → · Palette generator →