#304BAE#304BAE

#304BAE is a mid, vivid blue. Relative luminance 0.087; OKLCH L 45.3% C 0.161 H 267.8°. Best body text is #FFFFFF at 7.65:1 contrast (WCAG AA passes).

Color values

HEX	#304BAE
RGB	rgb(48, 75, 174)
HSL	hsl(227, 57%, 44%)
HSV	hsv(227, 72%, 68%)
CMYK	cmyk(72.4%, 56.9%, 0%, 31.8%)
CIE-LAB	lab(35.43, 24.70, -55.89)
CIE-LCH	lch(35.43, 61.10, 293.84°)
OKLab	oklab(45.26% -0.0061 -0.1611)
OKLCH	oklch(45.26% 0.161 267.8)
XYZ	xyz(11.3723, 8.7153, 41.1191)
Luminance	0.0872 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304BAE #AE9330

analogous

#308AAE #304BAE #5430AE

triadic

#304BAE #AE304B #4BAE30

tetradic

#304BAE #AE308A #AE9330 #30AE54

square

#304BAE #AE308A #AE9330 #30AE54

split-complementary

#304BAE #AE5430 #8AAE30

monochromatic

#16224E #23367E #304BAE #4D69CE #7D91DB

Accessibility & contrast

On white

7.65

#304BAE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#304BAE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304BAE

7.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304BAE	#FFFFFF	#000000	##FFFFFF
##304BAE	1.00	7.65	2.74	7.65
#FFFFFF	7.65	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059B1

Deuteranopia (green-blind)

#004EAC

Tritanopia (blue-blind)

#006375

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #304bae;
/* rgb */ color: rgb(48, 75, 174);
/* oklch */ color: oklch(45.3% 0.161 267.8);

Tailwind

colors: {
  custom: {
    50: '#797cc7',
    500: '#304bae',
    950: '#000000',
  },
}

SCSS

$custom: #304bae;
$custom-light: #797cc7;
$custom-dark: #000000;

JSON

{
  "hex": "#304bae",
  "rgb": {
    "r": 48,
    "g": 75,
    "b": 174
  },
  "hsl": {
    "h": 227.143,
    "s": 56.757,
    "l": 43.529
  },
  "oklch": {
    "l": 0.45263,
    "c": 0.1612,
    "h": 267.8
  },
  "luminance": 0.08717
}

Semantic roles & 50–950 ramp

primary

#304BAE

secondary

#C4B376

accent

#BF48E0

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #304BAE

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

Preview Lab → · Contrast checker → · Palette generator →