#304FB2#304FB2

#304FB2 is a mid, vivid blue. Relative luminance 0.094; OKLCH L 46.4% C 0.162 H 266.8°. Best body text is #FFFFFF at 7.27:1 contrast (WCAG AA passes).

Color values

HEX	#304FB2
RGB	rgb(48, 79, 178)
HSL	hsl(226, 58%, 44%)
HSV	hsv(226, 73%, 70%)
CMYK	cmyk(73%, 55.6%, 0%, 30.2%)
CIE-LAB	lab(36.81, 23.56, -56.03)
CIE-LCH	lch(36.81, 60.78, 292.80°)
OKLab	oklab(46.39% -0.0091 -0.1614)
OKLCH	oklch(46.39% 0.162 266.8)
XYZ	xyz(12.0480, 9.4334, 43.2967)
Luminance	0.0944 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304FB2 #B29330

analogous

#3090B2 #304FB2 #5230B2

triadic

#304FB2 #B2304F #4FB230

tetradic

#304FB2 #B23090 #B29330 #30B252

square

#304FB2 #B23090 #B29330 #30B252

split-complementary

#304FB2 #B25230 #90B230

monochromatic

#162452 #233A82 #304FB2 #506ED0 #8096DD

Accessibility & contrast

On white

7.27

#304FB2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.89

#304FB2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304FB2

7.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304FB2	#FFFFFF	#000000	##FFFFFF
##304FB2	1.00	7.27	2.89	7.27
#FFFFFF	7.27	1.00	21.00	1.00
#000000	2.89	21.00	1.00	21.00
##FFFFFF	7.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DB5

Deuteranopia (green-blind)

#0051B0

Tritanopia (blue-blind)

#006778

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #304fb2;
/* rgb */ color: rgb(48, 79, 178);
/* oklch */ color: oklch(46.4% 0.162 266.8);

Tailwind

colors: {
  custom: {
    50: '#7a7fca',
    500: '#304fb2',
    950: '#000000',
  },
}

SCSS

$custom: #304fb2;
$custom-light: #7a7fca;
$custom-dark: #000000;

JSON

{
  "hex": "#304fb2",
  "rgb": {
    "r": 48,
    "g": 79,
    "b": 178
  },
  "hsl": {
    "h": 225.692,
    "s": 57.522,
    "l": 44.314
  },
  "oklch": {
    "l": 0.46392,
    "c": 0.16168,
    "h": 266.8
  },
  "luminance": 0.09435
}

Semantic roles & 50–950 ramp

primary

#304FB2

secondary

#C6B378

accent

#BC47E1

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #304FB2

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

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