#304AA1#304AA1

#304AA1 is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.0% C 0.144 H 267.6°. Best body text is #FFFFFF at 8.02:1 contrast (WCAG AA passes).

Color values

HEX	#304AA1
RGB	rgb(48, 74, 161)
HSL	hsl(226, 54%, 41%)
HSV	hsv(226, 70%, 63%)
CMYK	cmyk(70.2%, 54%, 0%, 36.9%)
CIE-LAB	lab(34.19, 20.49, -50.14)
CIE-LCH	lch(34.19, 54.17, 292.23°)
OKLab	oklab(44.02% -0.0061 -0.1442)
OKLCH	oklch(44.02% 0.144 267.6)
XYZ	xyz(10.0985, 8.0981, 34.7422)
Luminance	0.0810 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304AA1 #A18730

analogous

#3082A1 #304AA1 #4E30A1

triadic

#304AA1 #A1304A #4AA130

tetradic

#304AA1 #A13082 #A18730 #30A14E

square

#304AA1 #A13082 #A18730 #30A14E

split-complementary

#304AA1 #A14E30 #82A130

monochromatic

#141F43 #223472 #304AA1 #4664C8 #758CD6

Accessibility & contrast

On white

8.02

#304AA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#304AA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304AA1

8.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304AA1	#FFFFFF	#000000	##FFFFFF
##304AA1	1.00	8.02	2.62	8.02
#FFFFFF	8.02	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C56A4

Deuteranopia (green-blind)

#004B9F

Tritanopia (blue-blind)

#005F6E

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #304aa1;
/* rgb */ color: rgb(48, 74, 161);
/* oklch */ color: oklch(44.0% 0.144 267.6);

Tailwind

colors: {
  custom: {
    50: '#777cbd',
    500: '#304aa1',
    950: '#000000',
  },
}

SCSS

$custom: #304aa1;
$custom-light: #777cbd;
$custom-dark: #000000;

JSON

{
  "hex": "#304aa1",
  "rgb": {
    "r": 48,
    "g": 74,
    "b": 161
  },
  "hsl": {
    "h": 226.195,
    "s": 54.067,
    "l": 40.98
  },
  "oklch": {
    "l": 0.44019,
    "c": 0.14431,
    "h": 267.6
  },
  "luminance": 0.08099
}

Semantic roles & 50–950 ramp

primary

#304AA1

secondary

#BEAC6F

accent

#BC4ADD

background

#F7F7FB

surface

#EEEEF7

border

#C9C9D0

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #304AA1

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

Preview Lab → · Contrast checker → · Palette generator →