#304EC0#304EC0

#304EC0 is a mid, vivid blue. Relative luminance 0.099; OKLCH L 47.3% C 0.182 H 267.5°. Best body text is #FFFFFF at 7.06:1 contrast (WCAG AA passes).

Color values

HEX	#304EC0
RGB	rgb(48, 78, 192)
HSL	hsl(228, 60%, 47%)
HSV	hsv(228, 75%, 75%)
CMYK	cmyk(75%, 59.4%, 0%, 24.7%)
CIE-LAB	lab(37.63, 29.42, -62.92)
CIE-LCH	lch(37.63, 69.46, 295.06°)
OKLab	oklab(47.35% -0.0078 -0.1817)
OKLCH	oklch(47.35% 0.182 267.5)
XYZ	xyz(13.4544, 9.8815, 51.0572)
Luminance	0.0988 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304EC0 #C0A230

analogous

#3096C0 #304EC0 #5A30C0

triadic

#304EC0 #C0304E #4EC030

tetradic

#304EC0 #C03096 #C0A230 #30C05A

square

#304EC0 #C03096 #C0A230 #30C05A

split-complementary

#304EC0 #C05A30 #96C030

monochromatic

#18265E #243A8F #304EC0 #5872D5 #899BE1

Accessibility & contrast

On white

7.06

#304EC0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.98

#304EC0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304EC0

7.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304EC0	#FFFFFF	#000000	##FFFFFF
##304EC0	1.00	7.06	2.98	7.06
#FFFFFF	7.06	1.00	21.00	1.00
#000000	2.98	21.00	1.00	21.00
##FFFFFF	7.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FC4

Deuteranopia (green-blind)

#0052BE

Tritanopia (blue-blind)

#006B7F

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #304ec0;
/* rgb */ color: rgb(48, 78, 192);
/* oklch */ color: oklch(47.3% 0.182 267.5);

Tailwind

colors: {
  custom: {
    50: '#7d7fd4',
    500: '#304ec0',
    950: '#000000',
  },
}

SCSS

$custom: #304ec0;
$custom-light: #7d7fd4;
$custom-dark: #000000;

JSON

{
  "hex": "#304ec0",
  "rgb": {
    "r": 48,
    "g": 78,
    "b": 192
  },
  "hsl": {
    "h": 227.5,
    "s": 60,
    "l": 47.059
  },
  "oklch": {
    "l": 0.47349,
    "c": 0.18185,
    "h": 267.5
  },
  "luminance": 0.09883
}

Semantic roles & 50–950 ramp

primary

#304EC0

secondary

#CBBC80

accent

#C245E3

background

#F8F7FD

surface

#EFEEFA

border

#CAC9D3

text

#0B0A14

muted

#7C7C83

Preview Lab

Preview with #304EC0

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

Preview Lab → · Contrast checker → · Palette generator →