#305BC3#305BC3

#305BC3 is a mid, vivid blue. Relative luminance 0.121; OKLCH L 50.2% C 0.170 H 264.2°. Best body text is #FFFFFF at 6.16:1 contrast (WCAG AA passes).

Color values

HEX	#305BC3
RGB	rgb(48, 91, 195)
HSL	hsl(222, 60%, 48%)
HSV	hsv(222, 75%, 76%)
CMYK	cmyk(75.4%, 53.3%, 0%, 23.5%)
CIE-LAB	lab(41.29, 22.08, -58.71)
CIE-LCH	lch(41.29, 62.72, 290.61°)
OKLab	oklab(50.18% -0.0171 -0.1691)
OKLCH	oklch(50.18% 0.17 264.2)
XYZ	xyz(14.8068, 12.0490, 53.1645)
Luminance	0.1205 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305BC3 #C39830

analogous

#30A4C3 #305BC3 #4E30C3

triadic

#305BC3 #C3305B #5BC330

tetradic

#305BC3 #C330A4 #C39830 #30C34E

square

#305BC3 #C330A4 #C39830 #30C34E

split-complementary

#305BC3 #C34E30 #A4C330

monochromatic

#182D61 #244492 #305BC3 #5A7ED6 #8BA5E2

Accessibility & contrast

On white

6.16

#305BC3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#305BC3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305BC3

6.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305BC3	#FFFFFF	#000000	##FFFFFF
##305BC3	1.00	6.16	3.41	6.16
#FFFFFF	6.16	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0968C7

Deuteranopia (green-blind)

#005BC1

Tritanopia (blue-blind)

#007486

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #305bc3;
/* rgb */ color: rgb(48, 91, 195);
/* oklch */ color: oklch(50.2% 0.170 264.2);

Tailwind

colors: {
  custom: {
    50: '#7d88d6',
    500: '#305bc3',
    950: '#000000',
  },
}

SCSS

$custom: #305bc3;
$custom-light: #7d88d6;
$custom-dark: #000000;

JSON

{
  "hex": "#305bc3",
  "rgb": {
    "r": 48,
    "g": 91,
    "b": 195
  },
  "hsl": {
    "h": 222.449,
    "s": 60.494,
    "l": 47.647
  },
  "oklch": {
    "l": 0.50176,
    "c": 0.16998,
    "h": 264.2
  },
  "luminance": 0.12051
}

Semantic roles & 50–950 ramp

primary

#305BC3

secondary

#CCB782

accent

#B544E4

background

#F8F8FD

surface

#EFEFFA

border

#CACAD3

text

#0B0B14

muted

#7C7C83

Preview Lab

Preview with #305BC3

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

Preview Lab → · Contrast checker → · Palette generator →