#304CA7#304CA7

#304CA7 is a dark, vivid blue. Relative luminance 0.086; OKLCH L 44.9% C 0.150 H 267.2°. Best body text is #FFFFFF at 7.73:1 contrast (WCAG AA passes).

Color values

HEX	#304CA7
RGB	rgb(48, 76, 167)
HSL	hsl(226, 55%, 42%)
HSV	hsv(226, 71%, 65%)
CMYK	cmyk(71.3%, 54.5%, 0%, 34.5%)
CIE-LAB	lab(35.18, 21.41, -52.13)
CIE-LCH	lch(35.18, 56.36, 292.33°)
OKLab	oklab(44.91% -0.0074 -0.15)
OKLCH	oklch(44.91% 0.15 267.2)
XYZ	xyz(10.7760, 8.5862, 37.6411)
Luminance	0.0859 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304CA7 #A78B30

analogous

#3088A7 #304CA7 #4F30A7

triadic

#304CA7 #A7304C #4CA730

tetradic

#304CA7 #A73088 #A78B30 #30A74F

square

#304CA7 #A73088 #A78B30 #30A74F

split-complementary

#304CA7 #A74F30 #88A730

monochromatic

#152148 #223677 #304CA7 #4968CB #798FD8

Accessibility & contrast

On white

7.73

#304CA7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#304CA7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304CA7

7.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304CA7	#FFFFFF	#000000	##FFFFFF
##304CA7	1.00	7.73	2.72	7.73
#FFFFFF	7.73	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0558AA

Deuteranopia (green-blind)

#004EA5

Tritanopia (blue-blind)

#006272

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #304ca7;
/* rgb */ color: rgb(48, 76, 167);
/* oklch */ color: oklch(44.9% 0.150 267.2);

Tailwind

colors: {
  custom: {
    50: '#787dc2',
    500: '#304ca7',
    950: '#000000',
  },
}

SCSS

$custom: #304ca7;
$custom-light: #787dc2;
$custom-dark: #000000;

JSON

{
  "hex": "#304ca7",
  "rgb": {
    "r": 48,
    "g": 76,
    "b": 167
  },
  "hsl": {
    "h": 225.882,
    "s": 55.349,
    "l": 42.157
  },
  "oklch": {
    "l": 0.44905,
    "c": 0.1502,
    "h": 267.2
  },
  "luminance": 0.08587
}

Semantic roles & 50–950 ramp

primary

#304CA7

secondary

#C1AE72

accent

#BB49DF

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #304CA7

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

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