#305ED4#305ED4

#305ED4 is a mid, vivid blue. Relative luminance 0.134; OKLCH L 52.1% C 0.189 H 264.5°. Best body text is #FFFFFF at 5.71:1 contrast (WCAG AA passes).

Color values

HEX	#305ED4
RGB	rgb(48, 94, 212)
HSL	hsl(223, 66%, 51%)
HSV	hsv(223, 77%, 83%)
CMYK	cmyk(77.4%, 55.7%, 0%, 16.9%)
CIE-LAB	lab(43.34, 26.50, -65.19)
CIE-LCH	lch(43.34, 70.37, 292.12°)
OKLab	oklab(52.11% -0.018 -0.1881)
OKLCH	oklch(52.11% 0.189 264.5)
XYZ	xyz(17.1011, 13.3853, 63.9569)
Luminance	0.1339 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#305ED4 #D4A630

analogous

#30B0D4 #305ED4 #5430D4

triadic

#305ED4 #D4305E #5ED430

tetradic

#305ED4 #D430B0 #D4A630 #30D454

square

#305ED4 #D430B0 #D4A630 #30D454

split-complementary

#305ED4 #D45430 #B0D430

monochromatic

#183172 #2247A5 #305ED4 #6385DF #95ADE9

Accessibility & contrast

On white

5.71

#305ED4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.68

#305ED4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #305ED4

5.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##305ED4	#FFFFFF	#000000	##FFFFFF
##305ED4	1.00	5.71	3.68	5.71
#FFFFFF	5.71	1.00	21.00	1.00
#000000	3.68	21.00	1.00	21.00
##FFFFFF	5.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006ED8

Deuteranopia (green-blind)

#005FD2

Tritanopia (blue-blind)

#007B90

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #305ed4;
/* rgb */ color: rgb(48, 94, 212);
/* oklch */ color: oklch(52.1% 0.189 264.5);

Tailwind

colors: {
  custom: {
    50: '#818be2',
    500: '#305ed4',
    950: '#000000',
  },
}

SCSS

$custom: #305ed4;
$custom-light: #818be2;
$custom-dark: #000000;

JSON

{
  "hex": "#305ed4",
  "rgb": {
    "r": 48,
    "g": 94,
    "b": 212
  },
  "hsl": {
    "h": 223.171,
    "s": 65.6,
    "l": 50.98
  },
  "oklch": {
    "l": 0.52113,
    "c": 0.18898,
    "h": 264.5
  },
  "luminance": 0.13387
}

Semantic roles & 50–950 ramp

primary

#305ED4

secondary

#D4C08C

accent

#B93FE9

background

#F8F8FE

surface

#F0F0FC

border

#CBCBD5

text

#0C0B15

muted

#7D7C84

Preview Lab

Preview with #305ED4

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

Preview Lab → · Contrast checker → · Palette generator →