#304EB2#304EB2

#304EB2 is a mid, vivid blue. Relative luminance 0.093; OKLCH L 46.2% C 0.163 H 267.1°. Best body text is #FFFFFF at 7.35:1 contrast (WCAG AA passes).

Color values

HEX	#304EB2
RGB	rgb(48, 78, 178)
HSL	hsl(226, 58%, 44%)
HSV	hsv(226, 73%, 70%)
CMYK	cmyk(73%, 56.2%, 0%, 30.2%)
CIE-LAB	lab(36.54, 24.22, -56.46)
CIE-LCH	lch(36.54, 61.44, 293.21°)
OKLab	oklab(46.19% -0.0083 -0.1627)
OKLCH	oklch(46.19% 0.163 267.1)
XYZ	xyz(11.9764, 9.2902, 43.2729)
Luminance	0.0929 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304EB2 #B29430

analogous

#308FB2 #304EB2 #5330B2

triadic

#304EB2 #B2304E #4EB230

tetradic

#304EB2 #B2308F #B29430 #30B253

square

#304EB2 #B2308F #B29430 #30B253

split-complementary

#304EB2 #B25330 #8FB230

monochromatic

#162452 #233982 #304EB2 #506DD0 #8095DD

Accessibility & contrast

On white

7.35

#304EB2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.86

#304EB2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304EB2

7.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304EB2	#FFFFFF	#000000	##FFFFFF
##304EB2	1.00	7.35	2.86	7.35
#FFFFFF	7.35	1.00	21.00	1.00
#000000	2.86	21.00	1.00	21.00
##FFFFFF	7.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CB5

Deuteranopia (green-blind)

#0050B0

Tritanopia (blue-blind)

#006778

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #304eb2;
/* rgb */ color: rgb(48, 78, 178);
/* oklch */ color: oklch(46.2% 0.163 267.1);

Tailwind

colors: {
  custom: {
    50: '#7a7fca',
    500: '#304eb2',
    950: '#000000',
  },
}

SCSS

$custom: #304eb2;
$custom-light: #7a7fca;
$custom-dark: #000000;

JSON

{
  "hex": "#304eb2",
  "rgb": {
    "r": 48,
    "g": 78,
    "b": 178
  },
  "hsl": {
    "h": 226.154,
    "s": 57.522,
    "l": 44.314
  },
  "oklch": {
    "l": 0.4619,
    "c": 0.16293,
    "h": 267.1
  },
  "luminance": 0.09292
}

Semantic roles & 50–950 ramp

primary

#304EB2

secondary

#C6B478

accent

#BD47E1

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #304EB2

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

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