#304CC1#304CC1

#304CC1 is a mid, vivid blue. Relative luminance 0.096; OKLCH L 47.1% C 0.186 H 268.0°. Best body text is #FFFFFF at 7.17:1 contrast (WCAG AA passes).

Color values

HEX	#304CC1
RGB	rgb(48, 76, 193)
HSL	hsl(228, 60%, 47%)
HSV	hsv(228, 75%, 76%)
CMYK	cmyk(75.1%, 60.6%, 0%, 24.3%)
CIE-LAB	lab(37.20, 31.09, -64.20)
CIE-LCH	lch(37.20, 71.33, 295.84°)
OKLab	oklab(47.06% -0.0065 -0.1855)
OKLCH	oklch(47.06% 0.186 268)
XYZ	xyz(13.4257, 9.6461, 51.5960)
Luminance	0.0965 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#304CC1 #C1A530

analogous

#3094C1 #304CC1 #5D30C1

triadic

#304CC1 #C1304C #4CC130

tetradic

#304CC1 #C13094 #C1A530 #30C15D

square

#304CC1 #C13094 #C1A530 #30C15D

split-complementary

#304CC1 #C15D30 #94C130

monochromatic

#18255F #243990 #304CC1 #5971D6 #8A9BE2

Accessibility & contrast

On white

7.17

#304CC1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.93

#304CC1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #304CC1

7.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##304CC1	#FFFFFF	#000000	##FFFFFF
##304CC1	1.00	7.17	2.93	7.17
#FFFFFF	7.17	1.00	21.00	1.00
#000000	2.93	21.00	1.00	21.00
##FFFFFF	7.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005EC5

Deuteranopia (green-blind)

#0051BF

Tritanopia (blue-blind)

#006A7F

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #304cc1;
/* rgb */ color: rgb(48, 76, 193);
/* oklch */ color: oklch(47.1% 0.186 268.0);

Tailwind

colors: {
  custom: {
    50: '#7e7dd5',
    500: '#304cc1',
    950: '#000000',
  },
}

SCSS

$custom: #304cc1;
$custom-light: #7e7dd5;
$custom-dark: #000000;

JSON

{
  "hex": "#304cc1",
  "rgb": {
    "r": 48,
    "g": 76,
    "b": 193
  },
  "hsl": {
    "h": 228.414,
    "s": 60.166,
    "l": 47.255
  },
  "oklch": {
    "l": 0.47055,
    "c": 0.18559,
    "h": 268
  },
  "luminance": 0.09648
}

Semantic roles & 50–950 ramp

primary

#304CC1

secondary

#CCBD81

accent

#C544E3

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0B0914

muted

#7C7B83

Preview Lab

Preview with #304CC1

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

Preview Lab → · Contrast checker → · Palette generator →