#304CA8#304CA8

#304CA8 is a dark, vivid blue. Relative luminance 0.086; OKLCH L 45.0% C 0.152 H 267.2°. Best body text is #FFFFFF at 7.71:1 contrast (WCAG AA passes).

Color values

HEX	#304CA8
RGB	rgb(48, 76, 168)
HSL	hsl(226, 56%, 42%)
HSV	hsv(226, 71%, 66%)
CMYK	cmyk(71.4%, 54.8%, 0%, 34.1%)
CIE-LAB	lab(35.25, 21.79, -52.61)
CIE-LCH	lch(35.25, 56.95, 292.50°)
OKLab	oklab(44.98% -0.0073 -0.1514)
OKLCH	oklch(44.98% 0.152 267.2)
XYZ	xyz(10.8688, 8.6233, 38.1299)
Luminance	0.0862 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304CA8 #A88C30

analogous

#3088A8 #304CA8 #5030A8

triadic

#304CA8 #A8304C #4CA830

tetradic

#304CA8 #A83088 #A88C30 #30A850

square

#304CA8 #A83088 #A88C30 #30A850

split-complementary

#304CA8 #A85030 #88A830

monochromatic

#152149 #223678 #304CA8 #4A68CB #7A90D9

Accessibility & contrast

On white

7.71

#304CA8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#304CA8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304CA8

7.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304CA8	#FFFFFF	#000000	##FFFFFF
##304CA8	1.00	7.71	2.72	7.71
#FFFFFF	7.71	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0159AB

Deuteranopia (green-blind)

#004EA6

Tritanopia (blue-blind)

#006272

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #304ca8;
/* rgb */ color: rgb(48, 76, 168);
/* oklch */ color: oklch(45.0% 0.152 267.2);

Tailwind

colors: {
  custom: {
    50: '#787dc3',
    500: '#304ca8',
    950: '#000000',
  },
}

SCSS

$custom: #304ca8;
$custom-light: #787dc3;
$custom-dark: #000000;

JSON

{
  "hex": "#304ca8",
  "rgb": {
    "r": 48,
    "g": 76,
    "b": 168
  },
  "hsl": {
    "h": 226,
    "s": 55.556,
    "l": 42.353
  },
  "oklch": {
    "l": 0.44984,
    "c": 0.1516,
    "h": 267.2
  },
  "luminance": 0.08624
}

Semantic roles & 50–950 ramp

primary

#304CA8

secondary

#C1AF73

accent

#BC49DF

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #304CA8

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

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