#304CA4#304CA4

#304CA4 is a dark, vivid blue. Relative luminance 0.085; OKLCH L 44.7% C 0.146 H 267.0°. Best body text is #FFFFFF at 7.79:1 contrast (WCAG AA passes).

Color values

HEX	#304CA4
RGB	rgb(48, 76, 164)
HSL	hsl(226, 55%, 42%)
HSV	hsv(226, 71%, 64%)
CMYK	cmyk(70.7%, 53.7%, 0%, 35.7%)
CIE-LAB	lab(34.96, 20.29, -50.69)
CIE-LCH	lch(34.96, 54.60, 291.81°)
OKLab	oklab(44.67% -0.0076 -0.1458)
OKLCH	oklch(44.67% 0.146 267)
XYZ	xyz(10.5019, 8.4765, 36.1974)
Luminance	0.0848 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304CA4 #A48830

analogous

#3086A4 #304CA4 #4E30A4

triadic

#304CA4 #A4304C #4CA430

tetradic

#304CA4 #A43086 #A48830 #30A44E

square

#304CA4 #A43086 #A48830 #30A44E

split-complementary

#304CA4 #A44E30 #86A430

monochromatic

#142045 #223675 #304CA4 #4867C9 #778ED7

Accessibility & contrast

On white

7.79

#304CA4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#304CA4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304CA4

7.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304CA4	#FFFFFF	#000000	##FFFFFF
##304CA4	1.00	7.79	2.70	7.79
#FFFFFF	7.79	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E58A7

Deuteranopia (green-blind)

#004DA2

Tritanopia (blue-blind)

#006170

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #304ca4;
/* rgb */ color: rgb(48, 76, 164);
/* oklch */ color: oklch(44.7% 0.146 267.0);

Tailwind

colors: {
  custom: {
    50: '#777dc0',
    500: '#304ca4',
    950: '#000000',
  },
}

SCSS

$custom: #304ca4;
$custom-light: #777dc0;
$custom-dark: #000000;

JSON

{
  "hex": "#304ca4",
  "rgb": {
    "r": 48,
    "g": 76,
    "b": 164
  },
  "hsl": {
    "h": 225.517,
    "s": 54.717,
    "l": 41.569
  },
  "oklch": {
    "l": 0.4467,
    "c": 0.14598,
    "h": 267
  },
  "luminance": 0.08478
}

Semantic roles & 50–950 ramp

primary

#304CA4

secondary

#BFAC70

accent

#BA4ADE

background

#F7F7FB

surface

#EEEEF7

border

#C9C9D0

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #304CA4

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

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