#304BAC#304BAC

#304BAC is a mid, vivid blue. Relative luminance 0.086; OKLCH L 45.1% C 0.158 H 267.7°. Best body text is #FFFFFF at 7.70:1 contrast (WCAG AA passes).

Color values

HEX	#304BAC
RGB	rgb(48, 75, 172)
HSL	hsl(227, 56%, 43%)
HSV	hsv(227, 72%, 67%)
CMYK	cmyk(72.1%, 56.4%, 0%, 32.5%)
CIE-LAB	lab(35.28, 23.95, -54.95)
CIE-LCH	lch(35.28, 59.94, 293.55°)
OKLab	oklab(45.1% -0.0062 -0.1583)
OKLCH	oklch(45.1% 0.158 267.7)
XYZ	xyz(11.1788, 8.6379, 40.0999)
Luminance	0.0864 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304BAC #AC9130

analogous

#3089AC #304BAC #5330AC

triadic

#304BAC #AC304B #4BAC30

tetradic

#304BAC #AC3089 #AC9130 #30AC53

square

#304BAC #AC3089 #AC9130 #30AC53

split-complementary

#304BAC #AC5330 #89AC30

monochromatic

#15214C #23367C #304BAC #4C68CD #7C91DA

Accessibility & contrast

On white

7.70

#304BAC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#304BAC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304BAC

7.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304BAC	#FFFFFF	#000000	##FFFFFF
##304BAC	1.00	7.70	2.73	7.70
#FFFFFF	7.70	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059AF

Deuteranopia (green-blind)

#004DAA

Tritanopia (blue-blind)

#006374

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #304bac;
/* rgb */ color: rgb(48, 75, 172);
/* oklch */ color: oklch(45.1% 0.158 267.7);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#304bac",
  "rgb": {
    "r": 48,
    "g": 75,
    "b": 172
  },
  "hsl": {
    "h": 226.935,
    "s": 56.364,
    "l": 43.137
  },
  "oklch": {
    "l": 0.451,
    "c": 0.15843,
    "h": 267.7
  },
  "luminance": 0.08639
}

Semantic roles & 50–950 ramp

primary

#304BAC

secondary

#C3B275

accent

#BF48E0

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #304BAC

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

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