#5866E4#5866E4

#5866E4 is a mid, vivid blue. Relative luminance 0.172; OKLCH L 56.9% C 0.190 H 273.9°. Best body text is #FFFFFF at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#5866E4
RGB	rgb(88, 102, 228)
HSL	hsl(234, 72%, 62%)
HSV	hsv(234, 61%, 89%)
CMYK	cmyk(61.4%, 55.3%, 0%, 10.6%)
CIE-LAB	lab(48.48, 32.62, -65.84)
CIE-LCH	lch(48.48, 73.48, 296.35°)
OKLab	oklab(56.86% 0.013 -0.1891)
OKLCH	oklch(56.86% 0.19 273.9)
XYZ	xyz(22.7748, 17.1770, 75.4991)
Luminance	0.1718 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5866E4 #E4D658

analogous

#58ACE4 #5866E4 #9058E4

triadic

#5866E4 #E45866 #66E458

tetradic

#5866E4 #E458AC #E4D658 #58E490

square

#5866E4 #E458AC #E4D658 #58E490

split-complementary

#5866E4 #E49058 #ACE458

monochromatic

#1B29A7 #2336DB #5866E4 #8D96ED #C1C7F5

Accessibility & contrast

On white

4.73

#5866E4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.44

#5866E4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5866E4

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5866E4	#FFFFFF	#000000	##FFFFFF
##5866E4	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)

#0079E8

Deuteranopia (green-blind)

#006DE1

Tritanopia (blue-blind)

#00849B

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #5866e4;
/* rgb */ color: rgb(88, 102, 228);
/* oklch */ color: oklch(56.9% 0.190 273.9);

Tailwind

colors: {
  custom: {
    50: '#9491ed',
    500: '#5866e4',
    950: '#000000',
  },
}

SCSS

$custom: #5866e4;
$custom-light: #9491ed;
$custom-dark: #000000;

JSON

{
  "hex": "#5866e4",
  "rgb": {
    "r": 88,
    "g": 102,
    "b": 228
  },
  "hsl": {
    "h": 234,
    "s": 72.165,
    "l": 61.961
  },
  "oklch": {
    "l": 0.56863,
    "c": 0.18956,
    "h": 273.9
  },
  "luminance": 0.17179
}

Semantic roles & 50–950 ramp

primary

#5866E4

secondary

#E6E1B2

accent

#C111D4

background

#F9F8FE

surface

#F2F0FD

border

#CCCBD5

text

#0E0C16

muted

#7E7D84

Preview Lab

Preview with #5866E4

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

Preview Lab → · Contrast checker → · Palette generator →