#4573DC#4573DC

#4573DC is a mid, vivid blue. Relative luminance 0.187; OKLCH L 57.8% C 0.168 H 264.1°. Best body text is #000000 at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#4573DC
RGB	rgb(69, 115, 220)
HSL	hsl(222, 68%, 57%)
HSV	hsv(222, 69%, 86%)
CMYK	cmyk(68.6%, 47.7%, 0%, 13.7%)
CIE-LAB	lab(50.32, 18.76, -58.40)
CIE-LCH	lch(50.32, 61.34, 287.81°)
OKLab	oklab(57.82% -0.0174 -0.1674)
OKLCH	oklch(57.82% 0.168 264.1)
XYZ	xyz(21.4987, 18.6918, 70.1711)
Luminance	0.1869 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4573DC #DCAE45

analogous

#45BFDC #4573DC #6345DC

triadic

#4573DC #DC4573 #73DC45

tetradic

#4573DC #DC45BF #DCAE45 #45DC63

square

#4573DC #DC45BF #DCAE45 #45DC63

split-complementary

#4573DC #DC6345 #BFDC45

monochromatic

#1A3D8C #2453C0 #4573DC #799AE6 #ACC1EF

Accessibility & contrast

On white

4.43

#4573DC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.74

#4573DC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4573DC

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4573DC	#FFFFFF	#000000	##000000
##4573DC	1.00	4.43	4.74	4.74
#FFFFFF	4.43	1.00	21.00	21.00
#000000	4.74	21.00	1.00	1.00
##000000	4.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A7FE0

Deuteranopia (green-blind)

#1271DA

Tritanopia (blue-blind)

#008C9D

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #4573dc;
/* rgb */ color: rgb(69, 115, 220);
/* oklch */ color: oklch(57.8% 0.168 264.1);

Tailwind

colors: {
  custom: {
    50: '#899ae7',
    500: '#4573dc',
    950: '#000000',
  },
}

SCSS

$custom: #4573dc;
$custom-light: #899ae7;
$custom-dark: #000000;

JSON

{
  "hex": "#4573dc",
  "rgb": {
    "r": 69,
    "g": 115,
    "b": 220
  },
  "hsl": {
    "h": 221.722,
    "s": 68.326,
    "l": 56.667
  },
  "oklch": {
    "l": 0.57823,
    "c": 0.16834,
    "h": 264.1
  },
  "luminance": 0.18694
}

Semantic roles & 50–950 ramp

primary

#4573DC

secondary

#DDCAA0

accent

#B63DEB

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #4573DC

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

Preview Lab → · Contrast checker → · Palette generator →