#305DB4#305DB4

#305DB4 is a mid, vivid blue. Relative luminance 0.118; OKLCH L 49.5% C 0.147 H 262.0°. Best body text is #FFFFFF at 6.27:1 contrast (WCAG AA passes).

Color values

HEX	#305DB4
RGB	rgb(48, 93, 180)
HSL	hsl(220, 58%, 45%)
HSV	hsv(220, 73%, 71%)
CMYK	cmyk(73.3%, 48.3%, 0%, 29.4%)
CIE-LAB	lab(40.82, 15.12, -50.72)
CIE-LCH	lch(40.82, 52.93, 286.60°)
OKLab	oklab(49.48% -0.0205 -0.1456)
OKLCH	oklch(49.48% 0.147 262)
XYZ	xyz(13.3685, 11.7509, 44.7348)
Luminance	0.1175 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305DB4 #B48730

analogous

#309FB4 #305DB4 #4530B4

triadic

#305DB4 #B4305D #5DB430

tetradic

#305DB4 #B4309F #B48730 #30B445

square

#305DB4 #B4309F #B48730 #30B445

split-complementary

#305DB4 #B44530 #9FB430

monochromatic

#162B53 #234484 #305DB4 #517CD1 #81A1DD

Accessibility & contrast

On white

6.27

#305DB4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.35

#305DB4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305DB4

6.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305DB4	#FFFFFF	#000000	##FFFFFF
##305DB4	1.00	6.27	3.35	6.27
#FFFFFF	6.27	1.00	21.00	1.00
#000000	3.35	21.00	1.00	21.00
##FFFFFF	6.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D67B7

Deuteranopia (green-blind)

#035BB2

Tritanopia (blue-blind)

#007280

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #305db4;
/* rgb */ color: rgb(48, 93, 180);
/* oklch */ color: oklch(49.5% 0.147 262.0);

Tailwind

colors: {
  custom: {
    50: '#7a8acb',
    500: '#305db4',
    950: '#000000',
  },
}

SCSS

$custom: #305db4;
$custom-light: #7a8acb;
$custom-dark: #000000;

JSON

{
  "hex": "#305db4",
  "rgb": {
    "r": 48,
    "g": 93,
    "b": 180
  },
  "hsl": {
    "h": 219.545,
    "s": 57.895,
    "l": 44.706
  },
  "oklch": {
    "l": 0.49484,
    "c": 0.14701,
    "h": 262
  },
  "luminance": 0.11752
}

Semantic roles & 50–950 ramp

primary

#305DB4

secondary

#C6AC79

accent

#AC47E1

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #305DB4

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

Preview Lab → · Contrast checker → · Palette generator →