#4573D3#4573D3

#4573D3 is a mid, vivid blue. Relative luminance 0.182; OKLCH L 57.2% C 0.156 H 263.1°. Best body text is #000000 at 4.65:1 contrast (WCAG AA passes).

Color values

HEX	#4573D3
RGB	rgb(69, 115, 211)
HSL	hsl(221, 62%, 55%)
HSV	hsv(221, 67%, 83%)
CMYK	cmyk(67.3%, 45.5%, 0%, 17.3%)
CIE-LAB	lab(49.77, 15.57, -54.19)
CIE-LCH	lch(49.77, 56.38, 286.03°)
OKLab	oklab(57.22% -0.0187 -0.155)
OKLCH	oklch(57.22% 0.156 263.1)
XYZ	xyz(20.3387, 18.2278, 64.0618)
Luminance	0.1823 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4573D3 #D3A545

analogous

#45BAD3 #4573D3 #5E45D3

triadic

#4573D3 #D34573 #73D345

tetradic

#4573D3 #D345BA #D3A545 #45D35E

square

#4573D3 #D345BA #D3A545 #45D35E

split-complementary

#4573D3 #D35E45 #BAD345

monochromatic

#1E3E7F #2A56B1 #4573D3 #7698DF #A8BEEA

Accessibility & contrast

On white

4.52

#4573D3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.65

#4573D3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4573D3

4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4573D3	#FFFFFF	#000000	##000000
##4573D3	1.00	4.52	4.65	4.65
#FFFFFF	4.52	1.00	21.00	21.00
#000000	4.65	21.00	1.00	1.00
##000000	4.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#437DD7

Deuteranopia (green-blind)

#2870D1

Tritanopia (blue-blind)

#008999

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #4573d3;
/* rgb */ color: rgb(69, 115, 211);
/* oklch */ color: oklch(57.2% 0.156 263.1);

Tailwind

colors: {
  custom: {
    50: '#889ae1',
    500: '#4573d3',
    950: '#000000',
  },
}

SCSS

$custom: #4573d3;
$custom-light: #889ae1;
$custom-dark: #000000;

JSON

{
  "hex": "#4573d3",
  "rgb": {
    "r": 69,
    "g": 115,
    "b": 211
  },
  "hsl": {
    "h": 220.563,
    "s": 61.739,
    "l": 54.902
  },
  "oklch": {
    "l": 0.57221,
    "c": 0.15618,
    "h": 263.1
  },
  "luminance": 0.1823
}

Semantic roles & 50–950 ramp

primary

#4573D3

secondary

#D8C49C

accent

#B043E5

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0D0E15

muted

#7D7E83

Preview Lab

Preview with #4573D3

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

Preview Lab → · Contrast checker → · Palette generator →