#4573C9#4573C9

#4573C9 is a mid, vivid blue. Relative luminance 0.177; OKLCH L 56.6% C 0.143 H 261.7°. Best body text is #FFFFFF at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#4573C9
RGB	rgb(69, 115, 201)
HSL	hsl(219, 55%, 53%)
HSV	hsv(219, 66%, 79%)
CMYK	cmyk(65.7%, 42.8%, 0%, 21.2%)
CIE-LAB	lab(49.18, 12.03, -49.43)
CIE-LCH	lch(49.18, 50.87, 283.68°)
OKLab	oklab(56.58% -0.0205 -0.1411)
OKLCH	oklch(56.58% 0.143 261.7)
XYZ	xyz(19.1239, 17.7419, 57.6637)
Luminance	0.1774 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4573C9 #C99B45

analogous

#45B5C9 #4573C9 #5945C9

triadic

#4573C9 #C94573 #73C945

tetradic

#4573C9 #C945B5 #C99B45 #45C959

square

#4573C9 #C945B5 #C99B45 #45C959

split-complementary

#4573C9 #C95945 #B5C945

monochromatic

#213D72 #2F57A2 #4573C9 #7497D7 #A4BAE5

Accessibility & contrast

On white

4.62

#4573C9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.55

#4573C9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #4573C9

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4573C9	#FFFFFF	#000000	##FFFFFF
##4573C9	1.00	4.62	4.55	4.62
#FFFFFF	4.62	1.00	21.00	1.00
#000000	4.55	21.00	1.00	21.00
##FFFFFF	4.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B7BCC

Deuteranopia (green-blind)

#366FC7

Tritanopia (blue-blind)

#008794

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #4573c9;
/* rgb */ color: rgb(69, 115, 201);
/* oklch */ color: oklch(56.6% 0.143 261.7);

Tailwind

colors: {
  custom: {
    50: '#869ada',
    500: '#4573c9',
    950: '#000000',
  },
}

SCSS

$custom: #4573c9;
$custom-light: #869ada;
$custom-dark: #000000;

JSON

{
  "hex": "#4573c9",
  "rgb": {
    "r": 69,
    "g": 115,
    "b": 201
  },
  "hsl": {
    "h": 219.091,
    "s": 55,
    "l": 52.941
  },
  "oklch": {
    "l": 0.56577,
    "c": 0.14254,
    "h": 261.7
  },
  "luminance": 0.17744
}

Semantic roles & 50–950 ramp

primary

#4573C9

secondary

#D1BE98

accent

#AA49DE

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #4573C9

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

Preview Lab → · Contrast checker → · Palette generator →