#4573CF#4573CF

#4573CF is a mid, vivid blue. Relative luminance 0.180; OKLCH L 57.0% C 0.151 H 262.6°. Best body text is #000000 at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#4573CF
RGB	rgb(69, 115, 207)
HSL	hsl(220, 59%, 54%)
HSV	hsv(220, 67%, 81%)
CMYK	cmyk(66.7%, 44.4%, 0%, 18.8%)
CIE-LAB	lab(49.53, 14.15, -52.30)
CIE-LCH	lch(49.53, 54.18, 285.14°)
OKLab	oklab(56.96% -0.0194 -0.1495)
OKLCH	oklch(56.96% 0.151 262.6)
XYZ	xyz(19.8435, 18.0297, 61.4537)
Luminance	0.1803 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4573CF #CFA145

analogous

#45B8CF #4573CF #5C45CF

triadic

#4573CF #CF4573 #73CF45

tetradic

#4573CF #CF45B8 #CFA145 #45CF5C

square

#4573CF #CF45B8 #CFA145 #45CF5C

split-complementary

#4573CF #CF5C45 #B8CF45

monochromatic

#203E7A #2C56AB #4573CF #7698DC #A6BCE8

Accessibility & contrast

On white

4.56

#4573CF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.61

#4573CF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4573CF

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4573CF	#FFFFFF	#000000	##000000
##4573CF	1.00	4.56	4.61	4.61
#FFFFFF	4.56	1.00	21.00	21.00
#000000	4.61	21.00	1.00	1.00
##000000	4.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#467DD2

Deuteranopia (green-blind)

#2E70CD

Tritanopia (blue-blind)

#008897

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #4573cf;
/* rgb */ color: rgb(69, 115, 207);
/* oklch */ color: oklch(57.0% 0.151 262.6);

Tailwind

colors: {
  custom: {
    50: '#879ade',
    500: '#4573cf',
    950: '#000000',
  },
}

SCSS

$custom: #4573cf;
$custom-light: #879ade;
$custom-dark: #000000;

JSON

{
  "hex": "#4573cf",
  "rgb": {
    "r": 69,
    "g": 115,
    "b": 207
  },
  "hsl": {
    "h": 220,
    "s": 58.974,
    "l": 54.118
  },
  "oklch": {
    "l": 0.5696,
    "c": 0.15073,
    "h": 262.6
  },
  "luminance": 0.18032
}

Semantic roles & 50–950 ramp

primary

#4573CF

secondary

#D5C29B

accent

#AE46E2

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #4573CF

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

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