#304FC0#304FC0

#304FC0 is a mid, vivid blue. Relative luminance 0.100; OKLCH L 47.5% C 0.181 H 267.3°. Best body text is #FFFFFF at 6.99:1 contrast (WCAG AA passes).

Color values

HEX	#304FC0
RGB	rgb(48, 79, 192)
HSL	hsl(227, 60%, 47%)
HSV	hsv(227, 75%, 75%)
CMYK	cmyk(75%, 58.9%, 0%, 24.7%)
CIE-LAB	lab(37.89, 28.77, -62.50)
CIE-LCH	lch(37.89, 68.80, 294.72°)
OKLab	oklab(47.54% -0.0085 -0.1804)
OKLCH	oklch(47.54% 0.181 267.3)
XYZ	xyz(13.5260, 10.0246, 51.0810)
Luminance	0.1003 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304FC0 #C0A130

analogous

#3097C0 #304FC0 #5930C0

triadic

#304FC0 #C0304F #4FC030

tetradic

#304FC0 #C03097 #C0A130 #30C059

square

#304FC0 #C03097 #C0A130 #30C059

split-complementary

#304FC0 #C05930 #97C030

monochromatic

#18275E #243B8F #304FC0 #5873D5 #899CE1

Accessibility & contrast

On white

6.99

#304FC0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.01

#304FC0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #304FC0

6.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304FC0	#FFFFFF	#000000	##FFFFFF
##304FC0	1.00	6.99	3.01	6.99
#FFFFFF	6.99	1.00	21.00	1.00
#000000	3.01	21.00	1.00	21.00
##FFFFFF	6.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060C4

Deuteranopia (green-blind)

#0053BE

Tritanopia (blue-blind)

#006B80

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #304fc0;
/* rgb */ color: rgb(48, 79, 192);
/* oklch */ color: oklch(47.5% 0.181 267.3);

Tailwind

colors: {
  custom: {
    50: '#7d80d4',
    500: '#304fc0',
    950: '#000000',
  },
}

SCSS

$custom: #304fc0;
$custom-light: #7d80d4;
$custom-dark: #000000;

JSON

{
  "hex": "#304fc0",
  "rgb": {
    "r": 48,
    "g": 79,
    "b": 192
  },
  "hsl": {
    "h": 227.083,
    "s": 60,
    "l": 47.059
  },
  "oklch": {
    "l": 0.47541,
    "c": 0.18063,
    "h": 267.3
  },
  "luminance": 0.10026
}

Semantic roles & 50–950 ramp

primary

#304FC0

secondary

#CBBB80

accent

#C145E3

background

#F8F7FD

surface

#EFEEFA

border

#CAC9D3

text

#0B0A14

muted

#7C7C83

Preview Lab

Preview with #304FC0

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

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