#4573DF#4573DF

#4573DF is a mid, vivid blue. Relative luminance 0.189; OKLCH L 58.0% C 0.172 H 264.3°. Best body text is #000000 at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#4573DF
RGB	rgb(69, 115, 223)
HSL	hsl(222, 71%, 57%)
HSV	hsv(222, 69%, 87%)
CMYK	cmyk(69.1%, 48.4%, 0%, 12.5%)
CIE-LAB	lab(50.51, 19.83, -59.79)
CIE-LCH	lch(50.51, 62.99, 288.35°)
OKLab	oklab(58.03% -0.017 -0.1715)
OKLCH	oklch(58.03% 0.172 264.3)
XYZ	xyz(21.8996, 18.8522, 72.2824)
Luminance	0.1885 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4573DF #DFB145

analogous

#45C0DF #4573DF #6445DF

triadic

#4573DF #DF4573 #73DF45

tetradic

#4573DF #DF45C0 #DFB145 #45DF64

square

#4573DF #DF45C0 #DFB145 #45DF64

split-complementary

#4573DF #DF6445 #C0DF45

monochromatic

#193D91 #2253C5 #4573DF #799AE8 #ADC2F1

Accessibility & contrast

On white

4.40

#4573DF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.77

#4573DF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4573DF

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4573DF	#FFFFFF	#000000	##000000
##4573DF	1.00	4.40	4.77	4.77
#FFFFFF	4.40	1.00	21.00	21.00
#000000	4.77	21.00	1.00	1.00
##000000	4.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3780E3

Deuteranopia (green-blind)

#0472DD

Tritanopia (blue-blind)

#008C9E

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #4573df;
/* rgb */ color: rgb(69, 115, 223);
/* oklch */ color: oklch(58.0% 0.172 264.3);

Tailwind

colors: {
  custom: {
    50: '#8a9aea',
    500: '#4573df',
    950: '#000000',
  },
}

SCSS

$custom: #4573df;
$custom-light: #8a9aea;
$custom-dark: #000000;

JSON

{
  "hex": "#4573df",
  "rgb": {
    "r": 69,
    "g": 115,
    "b": 223
  },
  "hsl": {
    "h": 222.078,
    "s": 70.642,
    "l": 57.255
  },
  "oklch": {
    "l": 0.58028,
    "c": 0.17237,
    "h": 264.3
  },
  "luminance": 0.18854
}

Semantic roles & 50–950 ramp

primary

#4573DF

secondary

#DFCCA1

accent

#B83AED

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #4573DF

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

Preview Lab → · Contrast checker → · Palette generator →