#4581DD#4581DD

#4581DD is a mid, vivid blue. Relative luminance 0.222; OKLCH L 60.8% C 0.153 H 258.8°. Best body text is #000000 at 5.44:1 contrast (WCAG AA passes).

Color values

HEX	#4581DD
RGB	rgb(69, 129, 221)
HSL	hsl(216, 69%, 57%)
HSV	hsv(216, 69%, 87%)
CMYK	cmyk(68.8%, 41.6%, 0%, 13.3%)
CIE-LAB	lab(54.22, 10.48, -52.72)
CIE-LCH	lch(54.22, 53.75, 281.24°)
OKLab	oklab(60.84% -0.0299 -0.1505)
OKLCH	oklch(60.84% 0.153 258.8)
XYZ	xyz(23.3509, 22.1838, 71.4439)
Luminance	0.2219 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4581DD #DDA145

analogous

#45CDDD #4581DD #5545DD

triadic

#4581DD #DD4581 #81DD45

tetradic

#4581DD #DD45CD #DDA145 #45DD55

square

#4581DD #DD45CD #DDA145 #45DD55

split-complementary

#4581DD #DD5545 #CDDD45

monochromatic

#1A488E #2362C1 #4581DD #79A4E6 #ACC7F0

Accessibility & contrast

On white

3.86

#4581DD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.44

#4581DD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4581DD

5.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4581DD	#FFFFFF	#000000	##000000
##4581DD	1.00	3.86	5.44	5.44
#FFFFFF	3.86	1.00	21.00	21.00
#000000	5.44	21.00	1.00	1.00
##000000	5.44	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5689E1

Deuteranopia (green-blind)

#3D7BDB

Tritanopia (blue-blind)

#0096A4

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #4581dd;
/* rgb */ color: rgb(69, 129, 221);
/* oklch */ color: oklch(60.8% 0.153 258.8);

Tailwind

colors: {
  custom: {
    50: '#89a5e8',
    500: '#4581dd',
    950: '#000000',
  },
}

SCSS

$custom: #4581dd;
$custom-light: #89a5e8;
$custom-dark: #000000;

JSON

{
  "hex": "#4581dd",
  "rgb": {
    "r": 69,
    "g": 129,
    "b": 221
  },
  "hsl": {
    "h": 216.316,
    "s": 69.091,
    "l": 56.863
  },
  "oklch": {
    "l": 0.60841,
    "c": 0.15347,
    "h": 258.8
  },
  "luminance": 0.22186
}

Semantic roles & 50–950 ramp

primary

#4581DD

secondary

#DEC5A0

accent

#A63CEC

background

#F9FAFE

surface

#F1F4FD

border

#CBCED5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #4581DD

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

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