#4573BD#4573BD

#4573BD is a mid, vivid blue. Relative luminance 0.172; OKLCH L 55.8% C 0.126 H 259.5°. Best body text is #FFFFFF at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#4573BD
RGB	rgb(69, 115, 189)
HSL	hsl(217, 48%, 51%)
HSV	hsv(217, 63%, 74%)
CMYK	cmyk(63.5%, 39.2%, 0%, 25.9%)
CIE-LAB	lab(48.51, 7.83, -43.61)
CIE-LCH	lch(48.51, 44.30, 280.18°)
OKLab	oklab(55.84% -0.023 -0.124)
OKLCH	oklch(55.84% 0.126 259.5)
XYZ	xyz(17.7670, 17.1991, 50.5177)
Luminance	0.1720 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4573BD #BD8F45

analogous

#45AFBD #4573BD #5345BD

triadic

#4573BD #BD4573 #73BD45

tetradic

#4573BD #BD45AF #BD8F45 #45BD53

square

#4573BD #BD45AF #BD8F45 #45BD53

split-complementary

#4573BD #BD5345 #AFBD45

monochromatic

#243C64 #345791 #4573BD #7295CD #9FB7DD

Accessibility & contrast

On white

4.73

#4573BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.44

#4573BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4573BD

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4573BD	#FFFFFF	#000000	##FFFFFF
##4573BD	1.00	4.73	4.44	4.73
#FFFFFF	4.73	1.00	21.00	1.00
#000000	4.44	21.00	1.00	21.00
##FFFFFF	4.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5279C0

Deuteranopia (green-blind)

#416EBB

Tritanopia (blue-blind)

#00848F

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #4573bd;
/* rgb */ color: rgb(69, 115, 189);
/* oklch */ color: oklch(55.8% 0.126 259.5);

Tailwind

colors: {
  custom: {
    50: '#849ad1',
    500: '#4573bd',
    950: '#000000',
  },
}

SCSS

$custom: #4573bd;
$custom-light: #849ad1;
$custom-dark: #000000;

JSON

{
  "hex": "#4573bd",
  "rgb": {
    "r": 69,
    "g": 115,
    "b": 189
  },
  "hsl": {
    "h": 217,
    "s": 47.619,
    "l": 50.588
  },
  "oklch": {
    "l": 0.55839,
    "c": 0.1261,
    "h": 259.5
  },
  "luminance": 0.17201
}

Semantic roles & 50–950 ramp

primary

#4573BD

secondary

#CAB594

accent

#A451D7

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #4573BD

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

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