#4573D7#4573D7

#4573D7 is a mid, vivid blue. Relative luminance 0.184; OKLCH L 57.5% C 0.162 H 263.6°. Best body text is #000000 at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#4573D7
RGB	rgb(69, 115, 215)
HSL	hsl(221, 65%, 56%)
HSV	hsv(221, 68%, 84%)
CMYK	cmyk(67.9%, 46.5%, 0%, 15.7%)
CIE-LAB	lab(50.01, 16.99, -56.07)
CIE-LCH	lch(50.01, 58.59, 286.85°)
OKLab	oklab(57.49% -0.0181 -0.1606)
OKLCH	oklch(57.49% 0.162 263.6)
XYZ	xyz(20.8464, 18.4309, 66.7357)
Luminance	0.1843 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4573D7 #D7A945

analogous

#45BCD7 #4573D7 #6045D7

triadic

#4573D7 #D74573 #73D745

tetradic

#4573D7 #D745BC #D7A945 #45D760

square

#4573D7 #D745BC #D7A945 #45D760

split-complementary

#4573D7 #D76045 #BCD745

monochromatic

#1D3D85 #2755B7 #4573D7 #7799E2 #AABFED

Accessibility & contrast

On white

4.48

#4573D7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.69

#4573D7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4573D7

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4573D7	#FFFFFF	#000000	##000000
##4573D7	1.00	4.48	4.69	4.69
#FFFFFF	4.48	1.00	21.00	21.00
#000000	4.69	21.00	1.00	1.00
##000000	4.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F7EDB

Deuteranopia (green-blind)

#2071D5

Tritanopia (blue-blind)

#008A9A

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #4573d7;
/* rgb */ color: rgb(69, 115, 215);
/* oklch */ color: oklch(57.5% 0.162 263.6);

Tailwind

colors: {
  custom: {
    50: '#889ae4',
    500: '#4573d7',
    950: '#000000',
  },
}

SCSS

$custom: #4573d7;
$custom-light: #889ae4;
$custom-dark: #000000;

JSON

{
  "hex": "#4573d7",
  "rgb": {
    "r": 69,
    "g": 115,
    "b": 215
  },
  "hsl": {
    "h": 221.096,
    "s": 64.602,
    "l": 55.686
  },
  "oklch": {
    "l": 0.57486,
    "c": 0.1616,
    "h": 263.6
  },
  "luminance": 0.18433
}

Semantic roles & 50–950 ramp

primary

#4573D7

secondary

#DAC79E

accent

#B340E8

background

#F9F9FE

surface

#F1F2FC

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #4573D7

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

Preview Lab → · Contrast checker → · Palette generator →