#304FA0#304FA0

#304FA0 is a mid, vivid blue. Relative luminance 0.088; OKLCH L 45.0% C 0.136 H 265.5°. Best body text is #FFFFFF at 7.63:1 contrast (WCAG AA passes).

Color values

HEX	#304FA0
RGB	rgb(48, 79, 160)
HSL	hsl(223, 54%, 41%)
HSV	hsv(223, 70%, 63%)
CMYK	cmyk(70%, 50.6%, 0%, 37.3%)
CIE-LAB	lab(35.51, 16.79, -47.39)
CIE-LCH	lch(35.51, 50.28, 289.50°)
OKLab	oklab(45% -0.0108 -0.136)
OKLCH	oklch(45% 0.136 265.5)
XYZ	xyz(10.3579, 8.7574, 34.3954)
Luminance	0.0876 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304FA0 #A08130

analogous

#3087A0 #304FA0 #4930A0

triadic

#304FA0 #A0304F #4FA030

tetradic

#304FA0 #A03087 #A08130 #30A049

square

#304FA0 #A03087 #A08130 #30A049

split-complementary

#304FA0 #A04930 #87A030

monochromatic

#142142 #223871 #304FA0 #466AC7 #7590D6

Accessibility & contrast

On white

7.63

#304FA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#304FA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304FA0

7.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304FA0	#FFFFFF	#000000	##FFFFFF
##304FA0	1.00	7.63	2.75	7.63
#FFFFFF	7.63	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2059A3

Deuteranopia (green-blind)

#004F9E

Tritanopia (blue-blind)

#006270

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #304fa0;
/* rgb */ color: rgb(48, 79, 160);
/* oklch */ color: oklch(45.0% 0.136 265.5);

Tailwind

colors: {
  custom: {
    50: '#767fbd',
    500: '#304fa0',
    950: '#000000',
  },
}

SCSS

$custom: #304fa0;
$custom-light: #767fbd;
$custom-dark: #000000;

JSON

{
  "hex": "#304fa0",
  "rgb": {
    "r": 48,
    "g": 79,
    "b": 160
  },
  "hsl": {
    "h": 223.393,
    "s": 53.846,
    "l": 40.784
  },
  "oklch": {
    "l": 0.45003,
    "c": 0.13645,
    "h": 265.5
  },
  "luminance": 0.08758
}

Semantic roles & 50–950 ramp

primary

#304FA0

secondary

#BEA86E

accent

#B54BDD

background

#F7F7FB

surface

#EEEEF6

border

#C9C9D0

text

#0A0A12

muted

#7C7C81

Preview Lab

Preview with #304FA0

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

Preview Lab → · Contrast checker → · Palette generator →