#304FAA#304FAA

#304FAA is a mid, vivid blue. Relative luminance 0.091; OKLCH L 45.8% C 0.151 H 266.3°. Best body text is #FFFFFF at 7.43:1 contrast (WCAG AA passes).

Color values

HEX	#304FAA
RGB	rgb(48, 79, 170)
HSL	hsl(225, 56%, 43%)
HSV	hsv(225, 72%, 67%)
CMYK	cmyk(71.8%, 53.5%, 0%, 33.3%)
CIE-LAB	lab(36.22, 20.55, -52.24)
CIE-LCH	lch(36.22, 56.13, 291.48°)
OKLab	oklab(45.76% -0.0097 -0.1503)
OKLCH	oklch(45.76% 0.151 266.3)
XYZ	xyz(11.2681, 9.1215, 39.1892)
Luminance	0.0912 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304FAA #AA8B30

analogous

#308CAA #304FAA #4E30AA

triadic

#304FAA #AA304F #4FAA30

tetradic

#304FAA #AA308C #AA8B30 #30AA4E

square

#304FAA #AA308C #AA8B30 #30AA4E

split-complementary

#304FAA #AA4E30 #8CAA30

monochromatic

#15234B #23397A #304FAA #4B6CCC #7B93DA

Accessibility & contrast

On white

7.43

#304FAA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.82

#304FAA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304FAA

7.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304FAA	#FFFFFF	#000000	##FFFFFF
##304FAA	1.00	7.43	2.82	7.43
#FFFFFF	7.43	1.00	21.00	1.00
#000000	2.82	21.00	1.00	21.00
##FFFFFF	7.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E5BAD

Deuteranopia (green-blind)

#0050A8

Tritanopia (blue-blind)

#006575

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #304faa;
/* rgb */ color: rgb(48, 79, 170);
/* oklch */ color: oklch(45.8% 0.151 266.3);

Tailwind

colors: {
  custom: {
    50: '#787fc4',
    500: '#304faa',
    950: '#000000',
  },
}

SCSS

$custom: #304faa;
$custom-light: #787fc4;
$custom-dark: #000000;

JSON

{
  "hex": "#304faa",
  "rgb": {
    "r": 48,
    "g": 79,
    "b": 170
  },
  "hsl": {
    "h": 224.754,
    "s": 55.963,
    "l": 42.745
  },
  "oklch": {
    "l": 0.45761,
    "c": 0.15058,
    "h": 266.3
  },
  "luminance": 0.09123
}

Semantic roles & 50–950 ramp

primary

#304FAA

secondary

#C2AE74

accent

#B949DF

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #304FAA

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

Preview Lab → · Contrast checker → · Palette generator →