#304AAC#304AAC

#304AAC is a dark, vivid blue. Relative luminance 0.085; OKLCH L 44.9% C 0.160 H 268.0°. Best body text is #FFFFFF at 7.78:1 contrast (WCAG AA passes).

Color values

HEX	#304AAC
RGB	rgb(48, 74, 172)
HSL	hsl(227, 56%, 43%)
HSV	hsv(227, 72%, 67%)
CMYK	cmyk(72.1%, 57%, 0%, 32.5%)
CIE-LAB	lab(35.01, 24.61, -55.38)
CIE-LCH	lch(35.01, 60.61, 293.96°)
OKLab	oklab(44.9% -0.0054 -0.1596)
OKLCH	oklch(44.9% 0.16 268)
XYZ	xyz(11.1115, 8.5034, 40.0774)
Luminance	0.0850 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304AAC #AC9230

analogous

#3088AC #304AAC #5430AC

triadic

#304AAC #AC304A #4AAC30

tetradic

#304AAC #AC3088 #AC9230 #30AC54

square

#304AAC #AC3088 #AC9230 #30AC54

split-complementary

#304AAC #AC5430 #88AC30

monochromatic

#15214C #23357C #304AAC #4C67CD #7C90DA

Accessibility & contrast

On white

7.78

#304AAC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#304AAC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304AAC

7.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304AAC	#FFFFFF	#000000	##FFFFFF
##304AAC	1.00	7.78	2.70	7.78
#FFFFFF	7.78	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058AF

Deuteranopia (green-blind)

#004DAA

Tritanopia (blue-blind)

#006273

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #304aac;
/* rgb */ color: rgb(48, 74, 172);
/* oklch */ color: oklch(44.9% 0.160 268.0);

Tailwind

colors: {
  custom: {
    50: '#797cc5',
    500: '#304aac',
    950: '#000000',
  },
}

SCSS

$custom: #304aac;
$custom-light: #797cc5;
$custom-dark: #000000;

JSON

{
  "hex": "#304aac",
  "rgb": {
    "r": 48,
    "g": 74,
    "b": 172
  },
  "hsl": {
    "h": 227.419,
    "s": 56.364,
    "l": 43.137
  },
  "oklch": {
    "l": 0.44899,
    "c": 0.1597,
    "h": 268
  },
  "luminance": 0.08504
}

Semantic roles & 50–950 ramp

primary

#304AAC

secondary

#C3B375

accent

#C048E0

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #304AAC

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

Preview Lab → · Contrast checker → · Palette generator →