#5866E1#5866E1

#5866E1 is a mid, vivid blue. Relative luminance 0.170; OKLCH L 56.6% C 0.186 H 274.0°. Best body text is #FFFFFF at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#5866E1
RGB	rgb(88, 102, 225)
HSL	hsl(234, 70%, 61%)
HSV	hsv(234, 61%, 88%)
CMYK	cmyk(60.9%, 54.7%, 0%, 11.8%)
CIE-LAB	lab(48.27, 31.62, -64.49)
CIE-LCH	lch(48.27, 71.82, 296.12°)
OKLab	oklab(56.64% 0.0129 -0.1851)
OKLCH	oklch(56.64% 0.186 274)
XYZ	xyz(22.3620, 17.0119, 73.3248)
Luminance	0.1701 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5866E1 #E1D358

analogous

#58ABE1 #5866E1 #8F58E1

triadic

#5866E1 #E15866 #66E158

tetradic

#5866E1 #E158AB #E1D358 #58E18F

square

#5866E1 #E158AB #E1D358 #58E18F

split-complementary

#5866E1 #E18F58 #ABE158

monochromatic

#1D2BA2 #2638D5 #5866E1 #8C96EA #C0C5F4

Accessibility & contrast

On white

4.77

#5866E1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.40

#5866E1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5866E1

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5866E1	#FFFFFF	#000000	##FFFFFF
##5866E1	1.00	4.77	4.40	4.77
#FFFFFF	4.77	1.00	21.00	1.00
#000000	4.40	21.00	1.00	21.00
##FFFFFF	4.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0279E5

Deuteranopia (green-blind)

#006DDE

Tritanopia (blue-blind)

#00839A

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #5866e1;
/* rgb */ color: rgb(88, 102, 225);
/* oklch */ color: oklch(56.6% 0.186 274.0);

Tailwind

colors: {
  custom: {
    50: '#9491eb',
    500: '#5866e1',
    950: '#000000',
  },
}

SCSS

$custom: #5866e1;
$custom-light: #9491eb;
$custom-dark: #000000;

JSON

{
  "hex": "#5866e1",
  "rgb": {
    "r": 88,
    "g": 102,
    "b": 225
  },
  "hsl": {
    "h": 233.869,
    "s": 69.543,
    "l": 61.373
  },
  "oklch": {
    "l": 0.56643,
    "c": 0.18556,
    "h": 274
  },
  "luminance": 0.17014
}

Semantic roles & 50–950 ramp

primary

#5866E1

secondary

#E4DFB1

accent

#BE14D2

background

#F9F8FE

surface

#F2F0FD

border

#CCCBD5

text

#0E0C16

muted

#7E7D84

Preview Lab

Preview with #5866E1

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

Preview Lab → · Contrast checker → · Palette generator →