#305FB7#305FB7

#305FB7 is a mid, vivid blue. Relative luminance 0.122; OKLCH L 50.1% C 0.149 H 261.6°. Best body text is #FFFFFF at 6.09:1 contrast (WCAG AA passes).

Color values

HEX	#305FB7
RGB	rgb(48, 95, 183)
HSL	hsl(219, 58%, 45%)
HSV	hsv(219, 74%, 72%)
CMYK	cmyk(73.8%, 48.1%, 0%, 28.2%)
CIE-LAB	lab(41.58, 14.96, -51.25)
CIE-LCH	lch(41.58, 53.39, 286.27°)
OKLab	oklab(50.13% -0.0218 -0.1471)
OKLCH	oklch(50.13% 0.149 261.6)
XYZ	xyz(13.8553, 12.2302, 46.4210)
Luminance	0.1223 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305FB7 #B78830

analogous

#30A3B7 #305FB7 #4430B7

triadic

#305FB7 #B7305F #5FB730

tetradic

#305FB7 #B730A3 #B78830 #30B744

square

#305FB7 #B730A3 #B78830 #30B744

split-complementary

#305FB7 #B74430 #A3B730

monochromatic

#172D56 #234687 #305FB7 #527FD2 #83A3DE

Accessibility & contrast

On white

6.09

#305FB7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.45

#305FB7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305FB7

6.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305FB7	#FFFFFF	#000000	##FFFFFF
##305FB7	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)

#2F69BA

Deuteranopia (green-blind)

#055CB5

Tritanopia (blue-blind)

#007482

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #305fb7;
/* rgb */ color: rgb(48, 95, 183);
/* oklch */ color: oklch(50.1% 0.149 261.6);

Tailwind

colors: {
  custom: {
    50: '#7a8bcd',
    500: '#305fb7',
    950: '#000000',
  },
}

SCSS

$custom: #305fb7;
$custom-light: #7a8bcd;
$custom-dark: #000000;

JSON

{
  "hex": "#305fb7",
  "rgb": {
    "r": 48,
    "g": 95,
    "b": 183
  },
  "hsl": {
    "h": 219.111,
    "s": 58.442,
    "l": 45.294
  },
  "oklch": {
    "l": 0.50131,
    "c": 0.14871,
    "h": 261.6
  },
  "luminance": 0.12232
}

Semantic roles & 50–950 ramp

primary

#305FB7

secondary

#C8AD7B

accent

#AC46E2

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #305FB7

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

Preview Lab → · Contrast checker → · Palette generator →