#304DB6#304DB6

#304DB6 is a mid, vivid blue. Relative luminance 0.093; OKLCH L 46.3% C 0.170 H 267.5°. Best body text is #FFFFFF at 7.34:1 contrast (WCAG AA passes).

Color values

HEX	#304DB6
RGB	rgb(48, 77, 182)
HSL	hsl(227, 58%, 45%)
HSV	hsv(227, 74%, 71%)
CMYK	cmyk(73.6%, 57.7%, 0%, 28.6%)
CIE-LAB	lab(36.58, 26.37, -58.76)
CIE-LCH	lch(36.58, 64.40, 294.17°)
OKLab	oklab(46.32% -0.0074 -0.1695)
OKLCH	oklch(46.32% 0.17 267.5)
XYZ	xyz(12.3134, 9.3122, 45.3954)
Luminance	0.0931 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304DB6 #B69930

analogous

#3090B6 #304DB6 #5630B6

triadic

#304DB6 #B6304D #4DB630

tetradic

#304DB6 #B63090 #B69930 #30B656

square

#304DB6 #B63090 #B69930 #30B656

split-complementary

#304DB6 #B65630 #90B630

monochromatic

#162455 #233986 #304DB6 #526DD1 #8296DE

Accessibility & contrast

On white

7.34

#304DB6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.86

#304DB6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304DB6

7.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304DB6	#FFFFFF	#000000	##FFFFFF
##304DB6	1.00	7.34	2.86	7.34
#FFFFFF	7.34	1.00	21.00	1.00
#000000	2.86	21.00	1.00	21.00
##FFFFFF	7.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CBA

Deuteranopia (green-blind)

#0050B4

Tritanopia (blue-blind)

#00677A

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #304db6;
/* rgb */ color: rgb(48, 77, 182);
/* oklch */ color: oklch(46.3% 0.170 267.5);

Tailwind

colors: {
  custom: {
    50: '#7b7ecd',
    500: '#304db6',
    950: '#000000',
  },
}

SCSS

$custom: #304db6;
$custom-light: #7b7ecd;
$custom-dark: #000000;

JSON

{
  "hex": "#304db6",
  "rgb": {
    "r": 48,
    "g": 77,
    "b": 182
  },
  "hsl": {
    "h": 227.015,
    "s": 58.261,
    "l": 45.098
  },
  "oklch": {
    "l": 0.46317,
    "c": 0.16964,
    "h": 267.5
  },
  "luminance": 0.09314
}

Semantic roles & 50–950 ramp

primary

#304DB6

secondary

#C7B77B

accent

#C046E1

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #304DB6

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

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