#304CAF#304CAF

#304CAF is a mid, vivid blue. Relative luminance 0.089; OKLCH L 45.5% C 0.161 H 267.6°. Best body text is #FFFFFF at 7.56:1 contrast (WCAG AA passes).

Color values

HEX	#304CAF
RGB	rgb(48, 76, 175)
HSL	hsl(227, 57%, 44%)
HSV	hsv(227, 73%, 69%)
CMYK	cmyk(72.6%, 56.6%, 0%, 31.4%)
CIE-LAB	lab(35.77, 24.41, -55.93)
CIE-LCH	lch(35.77, 61.02, 293.58°)
OKLab	oklab(45.55% -0.0069 -0.1612)
OKLCH	oklch(45.55% 0.161 267.6)
XYZ	xyz(11.5385, 8.8912, 41.6572)
Luminance	0.0889 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304CAF #AF9330

analogous

#308BAF #304CAF #5330AF

triadic

#304CAF #AF304C #4CAF30

tetradic

#304CAF #AF308B #AF9330 #30AF53

square

#304CAF #AF308B #AF9330 #30AF53

split-complementary

#304CAF #AF5330 #8BAF30

monochromatic

#16224F #23377F #304CAF #4E6ACE #7E92DC

Accessibility & contrast

On white

7.56

#304CAF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#304CAF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304CAF

7.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304CAF	#FFFFFF	#000000	##FFFFFF
##304CAF	1.00	7.56	2.78	7.56
#FFFFFF	7.56	1.00	21.00	1.00
#000000	2.78	21.00	1.00	21.00
##FFFFFF	7.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AB2

Deuteranopia (green-blind)

#004FAD

Tritanopia (blue-blind)

#006476

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #304caf;
/* rgb */ color: rgb(48, 76, 175);
/* oklch */ color: oklch(45.5% 0.161 267.6);

Tailwind

colors: {
  custom: {
    50: '#7a7dc8',
    500: '#304caf',
    950: '#000000',
  },
}

SCSS

$custom: #304caf;
$custom-light: #7a7dc8;
$custom-dark: #000000;

JSON

{
  "hex": "#304caf",
  "rgb": {
    "r": 48,
    "g": 76,
    "b": 175
  },
  "hsl": {
    "h": 226.772,
    "s": 56.951,
    "l": 43.725
  },
  "oklch": {
    "l": 0.45545,
    "c": 0.16132,
    "h": 267.6
  },
  "luminance": 0.08892
}

Semantic roles & 50–950 ramp

primary

#304CAF

secondary

#C4B376

accent

#BF48E0

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #304CAF

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

Preview Lab → · Contrast checker → · Palette generator →