#4573DE#4573DE

#4573DE is a mid, vivid blue. Relative luminance 0.188; OKLCH L 58.0% C 0.171 H 264.2°. Best body text is #000000 at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#4573DE
RGB	rgb(69, 115, 222)
HSL	hsl(222, 70%, 57%)
HSV	hsv(222, 69%, 87%)
CMYK	cmyk(68.9%, 48.2%, 0%, 12.9%)
CIE-LAB	lab(50.45, 19.47, -59.33)
CIE-LCH	lch(50.45, 62.44, 288.17°)
OKLab	oklab(57.96% -0.0171 -0.1702)
OKLCH	oklch(57.96% 0.171 264.2)
XYZ	xyz(21.7652, 18.7984, 71.5745)
Luminance	0.1880 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4573DE #DEB045

analogous

#45BFDE #4573DE #6445DE

triadic

#4573DE #DE4573 #73DE45

tetradic

#4573DE #DE45BF #DEB045 #45DE64

square

#4573DE #DE45BF #DEB045 #45DE64

split-complementary

#4573DE #DE6445 #BFDE45

monochromatic

#193D8F #2353C3 #4573DE #799AE7 #ADC1F0

Accessibility & contrast

On white

4.41

#4573DE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.76

#4573DE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4573DE

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4573DE	#FFFFFF	#000000	##000000
##4573DE	1.00	4.41	4.76	4.76
#FFFFFF	4.41	1.00	21.00	21.00
#000000	4.76	21.00	1.00	1.00
##000000	4.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3880E2

Deuteranopia (green-blind)

#0A71DC

Tritanopia (blue-blind)

#008C9E

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #4573de;
/* rgb */ color: rgb(69, 115, 222);
/* oklch */ color: oklch(58.0% 0.171 264.2);

Tailwind

colors: {
  custom: {
    50: '#8a9ae9',
    500: '#4573de',
    950: '#000000',
  },
}

SCSS

$custom: #4573de;
$custom-light: #8a9ae9;
$custom-dark: #000000;

JSON

{
  "hex": "#4573de",
  "rgb": {
    "r": 69,
    "g": 115,
    "b": 222
  },
  "hsl": {
    "h": 221.961,
    "s": 69.863,
    "l": 57.059
  },
  "oklch": {
    "l": 0.5796,
    "c": 0.17103,
    "h": 264.2
  },
  "luminance": 0.18801
}

Semantic roles & 50–950 ramp

primary

#4573DE

secondary

#DFCCA0

accent

#B73BED

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #4573DE

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

Preview Lab → · Contrast checker → · Palette generator →