#4581DC#4581DC

#4581DC is a mid, vivid blue. Relative luminance 0.221; OKLCH L 60.8% C 0.152 H 258.6°. Best body text is #000000 at 5.43:1 contrast (WCAG AA passes).

Color values

HEX	#4581DC
RGB	rgb(69, 129, 220)
HSL	hsl(216, 68%, 57%)
HSV	hsv(216, 69%, 86%)
CMYK	cmyk(68.6%, 41.4%, 0%, 13.7%)
CIE-LAB	lab(54.17, 10.12, -52.25)
CIE-LCH	lch(54.17, 53.22, 280.96°)
OKLab	oklab(60.78% -0.0301 -0.1491)
OKLCH	oklch(60.78% 0.152 258.6)
XYZ	xyz(23.2181, 22.1306, 70.7443)
Luminance	0.2213 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4581DC #DCA045

analogous

#45CDDC #4581DC #5545DC

triadic

#4581DC #DC4581 #81DC45

tetradic

#4581DC #DC45CD #DCA045 #45DC55

square

#4581DC #DC45CD #DCA045 #45DC55

split-complementary

#4581DC #DC5545 #CDDC45

monochromatic

#1A488C #2462C0 #4581DC #79A4E6 #ACC7EF

Accessibility & contrast

On white

3.87

#4581DC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.43

#4581DC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4581DC

5.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4581DC	#FFFFFF	#000000	##000000
##4581DC	1.00	3.87	5.43	5.43
#FFFFFF	3.87	1.00	21.00	21.00
#000000	5.43	21.00	1.00	1.00
##000000	5.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5689E0

Deuteranopia (green-blind)

#3E7BDA

Tritanopia (blue-blind)

#0096A4

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #4581dc;
/* rgb */ color: rgb(69, 129, 220);
/* oklch */ color: oklch(60.8% 0.152 258.6);

Tailwind

colors: {
  custom: {
    50: '#89a5e7',
    500: '#4581dc',
    950: '#000000',
  },
}

SCSS

$custom: #4581dc;
$custom-light: #89a5e7;
$custom-dark: #000000;

JSON

{
  "hex": "#4581dc",
  "rgb": {
    "r": 69,
    "g": 129,
    "b": 220
  },
  "hsl": {
    "h": 216.159,
    "s": 68.326,
    "l": 56.667
  },
  "oklch": {
    "l": 0.6078,
    "c": 0.15214,
    "h": 258.6
  },
  "luminance": 0.22133
}

Semantic roles & 50–950 ramp

primary

#4581DC

secondary

#DDC5A0

accent

#A63DEB

background

#F9FAFE

surface

#F1F4FC

border

#CBCED5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #4581DC

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

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