#304FAC#304FAC

#304FAC is a mid, vivid blue. Relative luminance 0.092; OKLCH L 45.9% C 0.153 H 266.4°. Best body text is #FFFFFF at 7.39:1 contrast (WCAG AA passes).

Color values

HEX	#304FAC
RGB	rgb(48, 79, 172)
HSL	hsl(225, 56%, 43%)
HSV	hsv(225, 72%, 67%)
CMYK	cmyk(72.1%, 54.1%, 0%, 32.5%)
CIE-LAB	lab(36.36, 21.30, -53.19)
CIE-LCH	lch(36.36, 57.30, 291.83°)
OKLab	oklab(45.92% -0.0095 -0.1531)
OKLCH	oklch(45.92% 0.153 266.4)
XYZ	xyz(11.4587, 9.1977, 40.1932)
Luminance	0.0920 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304FAC #AC8D30

analogous

#308DAC #304FAC #4F30AC

triadic

#304FAC #AC304F #4FAC30

tetradic

#304FAC #AC308D #AC8D30 #30AC4F

square

#304FAC #AC308D #AC8D30 #30AC4F

split-complementary

#304FAC #AC4F30 #8DAC30

monochromatic

#15234C #23397C #304FAC #4C6CCD #7C94DA

Accessibility & contrast

On white

7.39

#304FAC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.84

#304FAC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304FAC

7.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304FAC	#FFFFFF	#000000	##FFFFFF
##304FAC	1.00	7.39	2.84	7.39
#FFFFFF	7.39	1.00	21.00	1.00
#000000	2.84	21.00	1.00	21.00
##FFFFFF	7.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#085BAF

Deuteranopia (green-blind)

#0050AA

Tritanopia (blue-blind)

#006576

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #304fac;
/* rgb */ color: rgb(48, 79, 172);
/* oklch */ color: oklch(45.9% 0.153 266.4);

Tailwind

colors: {
  custom: {
    50: '#797fc5',
    500: '#304fac',
    950: '#000000',
  },
}

SCSS

$custom: #304fac;
$custom-light: #797fc5;
$custom-dark: #000000;

JSON

{
  "hex": "#304fac",
  "rgb": {
    "r": 48,
    "g": 79,
    "b": 172
  },
  "hsl": {
    "h": 225,
    "s": 56.364,
    "l": 43.137
  },
  "oklch": {
    "l": 0.45917,
    "c": 0.15338,
    "h": 266.4
  },
  "luminance": 0.09199
}

Semantic roles & 50–950 ramp

primary

#304FAC

secondary

#C3AF75

accent

#BA48E0

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #304FAC

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

Preview Lab → · Contrast checker → · Palette generator →