#304599#304599

#304599 is a dark, vivid blue. Relative luminance 0.072; OKLCH L 42.4% C 0.139 H 269.1°. Best body text is #FFFFFF at 8.62:1 contrast (WCAG AA passes).

Color values

HEX	#304599
RGB	rgb(48, 69, 153)
HSL	hsl(228, 52%, 39%)
HSV	hsv(228, 69%, 60%)
CMYK	cmyk(68.6%, 54.9%, 0%, 40%)
CIE-LAB	lab(32.22, 20.84, -48.49)
CIE-LCH	lch(32.22, 52.78, 293.26°)
OKLab	oklab(42.35% -0.0022 -0.1394)
OKLCH	oklch(42.35% 0.139 269.1)
XYZ	xyz(9.0948, 7.1837, 31.0381)
Luminance	0.0718 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304599 #998430

analogous

#307A99 #304599 #503099

triadic

#304599 #993045 #459930

tetradic

#304599 #99307A #998430 #309950

square

#304599 #99307A #998430 #309950

split-complementary

#304599 #995030 #7A9930

monochromatic

#131B3C #21306A #304599 #425CC4 #7184D2

Accessibility & contrast

On white

8.62

#304599 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#304599 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304599

8.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304599	#FFFFFF	#000000	##FFFFFF
##304599	1.00	8.62	2.44	8.62
#FFFFFF	8.62	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#06519C

Deuteranopia (green-blind)

#004797

Tritanopia (blue-blind)

#005968

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #304599;
/* rgb */ color: rgb(48, 69, 153);
/* oklch */ color: oklch(42.4% 0.139 269.1);

Tailwind

colors: {
  custom: {
    50: '#7578b8',
    500: '#304599',
    950: '#000000',
  },
}

SCSS

$custom: #304599;
$custom-light: #7578b8;
$custom-dark: #000000;

JSON

{
  "hex": "#304599",
  "rgb": {
    "r": 48,
    "g": 69,
    "b": 153
  },
  "hsl": {
    "h": 228,
    "s": 52.239,
    "l": 39.412
  },
  "oklch": {
    "l": 0.42351,
    "c": 0.13941,
    "h": 269.1
  },
  "luminance": 0.07185
}

Semantic roles & 50–950 ramp

primary

#304599

secondary

#BAAA6B

accent

#BF4CDC

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#090811

muted

#7B7B80

Preview Lab

Preview with #304599

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

Preview Lab → · Contrast checker → · Palette generator →