#304FA9#304FA9

#304FA9 is a mid, vivid blue. Relative luminance 0.091; OKLCH L 45.7% C 0.149 H 266.2°. Best body text is #FFFFFF at 7.45:1 contrast (WCAG AA passes).

Color values

HEX	#304FA9
RGB	rgb(48, 79, 169)
HSL	hsl(225, 56%, 43%)
HSV	hsv(225, 72%, 66%)
CMYK	cmyk(71.6%, 53.3%, 0%, 33.7%)
CIE-LAB	lab(36.15, 20.18, -51.76)
CIE-LCH	lch(36.15, 55.55, 291.30°)
OKLab	oklab(45.68% -0.0098 -0.1489)
OKLCH	oklch(45.68% 0.149 266.2)
XYZ	xyz(11.1738, 9.0838, 38.6929)
Luminance	0.0909 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304FA9 #A98A30

analogous

#308BA9 #304FA9 #4D30A9

triadic

#304FA9 #A9304F #4FA930

tetradic

#304FA9 #A9308B #A98A30 #30A94D

square

#304FA9 #A9308B #A98A30 #30A94D

split-complementary

#304FA9 #A94D30 #8BA930

monochromatic

#15224A #223979 #304FA9 #4A6CCC #7A93D9

Accessibility & contrast

On white

7.45

#304FA9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.82

#304FA9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304FA9

7.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304FA9	#FFFFFF	#000000	##FFFFFF
##304FA9	1.00	7.45	2.82	7.45
#FFFFFF	7.45	1.00	21.00	1.00
#000000	2.82	21.00	1.00	21.00
##FFFFFF	7.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#115BAC

Deuteranopia (green-blind)

#0050A7

Tritanopia (blue-blind)

#006574

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #304fa9;
/* rgb */ color: rgb(48, 79, 169);
/* oklch */ color: oklch(45.7% 0.149 266.2);

Tailwind

colors: {
  custom: {
    50: '#787fc3',
    500: '#304fa9',
    950: '#000000',
  },
}

SCSS

$custom: #304fa9;
$custom-light: #787fc3;
$custom-dark: #000000;

JSON

{
  "hex": "#304fa9",
  "rgb": {
    "r": 48,
    "g": 79,
    "b": 169
  },
  "hsl": {
    "h": 224.628,
    "s": 55.76,
    "l": 42.549
  },
  "oklch": {
    "l": 0.45684,
    "c": 0.14918,
    "h": 266.2
  },
  "luminance": 0.09085
}

Semantic roles & 50–950 ramp

primary

#304FA9

secondary

#C2AE73

accent

#B949DF

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #304FA9

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

Preview Lab → · Contrast checker → · Palette generator →