#4573D5#4573D5

#4573D5 is a mid, vivid blue. Relative luminance 0.183; OKLCH L 57.4% C 0.159 H 263.3°. Best body text is #000000 at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#4573D5
RGB	rgb(69, 115, 213)
HSL	hsl(221, 63%, 55%)
HSV	hsv(221, 68%, 84%)
CMYK	cmyk(67.6%, 46%, 0%, 16.5%)
CIE-LAB	lab(49.89, 16.28, -55.13)
CIE-LCH	lch(49.89, 57.48, 286.45°)
OKLab	oklab(57.35% -0.0184 -0.1578)
OKLCH	oklch(57.35% 0.159 263.3)
XYZ	xyz(20.5910, 18.3287, 65.3905)
Luminance	0.1833 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4573D5 #D5A745

analogous

#45BBD5 #4573D5 #5F45D5

triadic

#4573D5 #D54573 #73D545

tetradic

#4573D5 #D545BB #D5A745 #45D55F

square

#4573D5 #D545BB #D5A745 #45D55F

split-complementary

#4573D5 #D55F45 #BBD545

monochromatic

#1D3E82 #2955B4 #4573D5 #7799E0 #A9BEEC

Accessibility & contrast

On white

4.50

#4573D5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.67

#4573D5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4573D5

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4573D5	#FFFFFF	#000000	##000000
##4573D5	1.00	4.50	4.67	4.67
#FFFFFF	4.50	1.00	21.00	21.00
#000000	4.67	21.00	1.00	1.00
##000000	4.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#417ED9

Deuteranopia (green-blind)

#2470D3

Tritanopia (blue-blind)

#008A9A

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #4573d5;
/* rgb */ color: rgb(69, 115, 213);
/* oklch */ color: oklch(57.4% 0.159 263.3);

Tailwind

colors: {
  custom: {
    50: '#889ae2',
    500: '#4573d5',
    950: '#000000',
  },
}

SCSS

$custom: #4573d5;
$custom-light: #889ae2;
$custom-dark: #000000;

JSON

{
  "hex": "#4573d5",
  "rgb": {
    "r": 69,
    "g": 115,
    "b": 213
  },
  "hsl": {
    "h": 220.833,
    "s": 63.158,
    "l": 55.294
  },
  "oklch": {
    "l": 0.57353,
    "c": 0.15889,
    "h": 263.3
  },
  "luminance": 0.18331
}

Semantic roles & 50–950 ramp

primary

#4573D5

secondary

#D9C69D

accent

#B242E6

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #4573D5

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

Preview Lab → · Contrast checker → · Palette generator →