#4573CB#4573CB

#4573CB is a mid, vivid blue. Relative luminance 0.178; OKLCH L 56.7% C 0.145 H 262.0°. Best body text is #FFFFFF at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#4573CB
RGB	rgb(69, 115, 203)
HSL	hsl(219, 56%, 53%)
HSV	hsv(219, 66%, 80%)
CMYK	cmyk(66%, 43.3%, 0%, 20.4%)
CIE-LAB	lab(49.30, 12.74, -50.39)
CIE-LCH	lch(49.30, 51.97, 284.19°)
OKLab	oklab(56.7% -0.0201 -0.1439)
OKLCH	oklch(56.7% 0.145 262)
XYZ	xyz(19.3607, 17.8366, 58.9108)
Luminance	0.1784 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4573CB #CB9D45

analogous

#45B6CB #4573CB #5A45CB

triadic

#4573CB #CB4573 #73CB45

tetradic

#4573CB #CB45B6 #CB9D45 #45CB5A

square

#4573CB #CB45B6 #CB9D45 #45CB5A

split-complementary

#4573CB #CB5A45 #B6CB45

monochromatic

#213E75 #2E57A5 #4573CB #7597D8 #A5BBE6

Accessibility & contrast

On white

4.60

#4573CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.57

#4573CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #4573CB

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4573CB	#FFFFFF	#000000	##FFFFFF
##4573CB	1.00	4.60	4.57	4.60
#FFFFFF	4.60	1.00	21.00	1.00
#000000	4.57	21.00	1.00	21.00
##FFFFFF	4.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#497CCE

Deuteranopia (green-blind)

#336FC9

Tritanopia (blue-blind)

#008795

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #4573cb;
/* rgb */ color: rgb(69, 115, 203);
/* oklch */ color: oklch(56.7% 0.145 262.0);

Tailwind

colors: {
  custom: {
    50: '#869adb',
    500: '#4573cb',
    950: '#000000',
  },
}

SCSS

$custom: #4573cb;
$custom-light: #869adb;
$custom-dark: #000000;

JSON

{
  "hex": "#4573cb",
  "rgb": {
    "r": 69,
    "g": 115,
    "b": 203
  },
  "hsl": {
    "h": 219.403,
    "s": 56.303,
    "l": 53.333
  },
  "oklch": {
    "l": 0.56703,
    "c": 0.14528,
    "h": 262
  },
  "luminance": 0.17838
}

Semantic roles & 50–950 ramp

primary

#4573CB

secondary

#D3BF99

accent

#AC48E0

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #4573CB

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

Preview Lab → · Contrast checker → · Palette generator →