#304FA1#304FA1

#304FA1 is a mid, vivid blue. Relative luminance 0.088; OKLCH L 45.1% C 0.138 H 265.6°. Best body text is #FFFFFF at 7.61:1 contrast (WCAG AA passes).

Color values

HEX	#304FA1
RGB	rgb(48, 79, 161)
HSL	hsl(224, 54%, 41%)
HSV	hsv(224, 70%, 63%)
CMYK	cmyk(70.2%, 50.9%, 0%, 36.9%)
CIE-LAB	lab(35.58, 17.16, -47.88)
CIE-LCH	lch(35.58, 50.87, 289.72°)
OKLab	oklab(45.08% -0.0106 -0.1375)
OKLCH	oklch(45.08% 0.138 265.6)
XYZ	xyz(10.4457, 8.7925, 34.8579)
Luminance	0.0879 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304FA1 #A18230

analogous

#3087A1 #304FA1 #4930A1

triadic

#304FA1 #A1304F #4FA130

tetradic

#304FA1 #A13087 #A18230 #30A149

square

#304FA1 #A13087 #A18230 #30A149

split-complementary

#304FA1 #A14930 #87A130

monochromatic

#142143 #223872 #304FA1 #466AC8 #7590D6

Accessibility & contrast

On white

7.61

#304FA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.76

#304FA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304FA1

7.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304FA1	#FFFFFF	#000000	##FFFFFF
##304FA1	1.00	7.61	2.76	7.61
#FFFFFF	7.61	1.00	21.00	1.00
#000000	2.76	21.00	1.00	21.00
##FFFFFF	7.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F59A4

Deuteranopia (green-blind)

#004F9F

Tritanopia (blue-blind)

#006270

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #304fa1;
/* rgb */ color: rgb(48, 79, 161);
/* oklch */ color: oklch(45.1% 0.138 265.6);

Tailwind

colors: {
  custom: {
    50: '#767fbd',
    500: '#304fa1',
    950: '#000000',
  },
}

SCSS

$custom: #304fa1;
$custom-light: #767fbd;
$custom-dark: #000000;

JSON

{
  "hex": "#304fa1",
  "rgb": {
    "r": 48,
    "g": 79,
    "b": 161
  },
  "hsl": {
    "h": 223.54,
    "s": 54.067,
    "l": 40.98
  },
  "oklch": {
    "l": 0.45077,
    "c": 0.13788,
    "h": 265.6
  },
  "luminance": 0.08794
}

Semantic roles & 50–950 ramp

primary

#304FA1

secondary

#BEA86F

accent

#B54ADD

background

#F7F7FB

surface

#EEEEF7

border

#C9C9D0

text

#0A0A12

muted

#7C7C81

Preview Lab

Preview with #304FA1

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

Preview Lab → · Contrast checker → · Palette generator →