#305BC7#305BC7

#305BC7 is a mid, vivid blue. Relative luminance 0.122; OKLCH L 50.5% C 0.175 H 264.5°. Best body text is #FFFFFF at 6.09:1 contrast (WCAG AA passes).

Color values

HEX	#305BC7
RGB	rgb(48, 91, 199)
HSL	hsl(223, 61%, 48%)
HSV	hsv(223, 76%, 78%)
CMYK	cmyk(75.9%, 54.3%, 0%, 22%)
CIE-LAB	lab(41.58, 23.58, -60.56)
CIE-LCH	lch(41.58, 64.99, 291.28°)
OKLab	oklab(50.49% -0.0168 -0.1745)
OKLCH	oklch(50.49% 0.175 264.5)
XYZ	xyz(15.2652, 12.2324, 55.5783)
Luminance	0.1223 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305BC7 #C79C30

analogous

#30A6C7 #305BC7 #5030C7

triadic

#305BC7 #C7305B #5BC730

tetradic

#305BC7 #C730A6 #C79C30 #30C750

square

#305BC7 #C730A6 #C79C30 #30C750

split-complementary

#305BC7 #C75030 #A6C730

monochromatic

#182E64 #244496 #305BC7 #5C80D8 #8EA6E4

Accessibility & contrast

On white

6.09

#305BC7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.45

#305BC7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305BC7

6.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305BC7	#FFFFFF	#000000	##FFFFFF
##305BC7	1.00	6.09	3.45	6.09
#FFFFFF	6.09	1.00	21.00	1.00
#000000	3.45	21.00	1.00	21.00
##FFFFFF	6.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0069CB

Deuteranopia (green-blind)

#005BC5

Tritanopia (blue-blind)

#007588

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #305bc7;
/* rgb */ color: rgb(48, 91, 199);
/* oklch */ color: oklch(50.5% 0.175 264.5);

Tailwind

colors: {
  custom: {
    50: '#7e88d9',
    500: '#305bc7',
    950: '#000000',
  },
}

SCSS

$custom: #305bc7;
$custom-light: #7e88d9;
$custom-dark: #000000;

JSON

{
  "hex": "#305bc7",
  "rgb": {
    "r": 48,
    "g": 91,
    "b": 199
  },
  "hsl": {
    "h": 222.914,
    "s": 61.134,
    "l": 48.431
  },
  "oklch": {
    "l": 0.50486,
    "c": 0.17536,
    "h": 264.5
  },
  "luminance": 0.12234
}

Semantic roles & 50–950 ramp

primary

#305BC7

secondary

#CEB985

accent

#B644E4

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0B0B15

muted

#7C7C83

Preview Lab

Preview with #305BC7

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

Preview Lab → · Contrast checker → · Palette generator →