#5866CE#5866CE

#5866CE is a mid, vivid blue. Relative luminance 0.160; OKLCH L 55.3% C 0.160 H 274.2°. Best body text is #FFFFFF at 4.99:1 contrast (WCAG AA passes).

Color values

HEX	#5866CE
RGB	rgb(88, 102, 206)
HSL	hsl(233, 55%, 58%)
HSV	hsv(233, 57%, 81%)
CMYK	cmyk(57.3%, 50.5%, 0%, 19.2%)
CIE-LAB	lab(47.02, 25.34, -55.71)
CIE-LCH	lch(47.02, 61.20, 294.46°)
OKLab	oklab(55.3% 0.0117 -0.1593)
OKLCH	oklch(55.3% 0.16 274.2)
XYZ	xyz(19.9128, 16.0322, 60.4258)
Luminance	0.1603 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5866CE #CEC058

analogous

#58A1CE #5866CE #8558CE

triadic

#5866CE #CE5866 #66CE58

tetradic

#5866CE #CE58A1 #CEC058 #58CE85

square

#5866CE #CE58A1 #CEC058 #58CE85

split-complementary

#5866CE #CE8558 #A1CE58

monochromatic

#273285 #3544B4 #5866CE #8791DC #B7BDEA

Accessibility & contrast

On white

4.99

#5866CE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.21

#5866CE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5866CE

4.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5866CE	#FFFFFF	#000000	##FFFFFF
##5866CE	1.00	4.99	4.21	4.99
#FFFFFF	4.99	1.00	21.00	1.00
#000000	4.21	21.00	1.00	21.00
##FFFFFF	4.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F75D2

Deuteranopia (green-blind)

#196BCC

Tritanopia (blue-blind)

#077E90

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #5866ce;
/* rgb */ color: rgb(88, 102, 206);
/* oklch */ color: oklch(55.3% 0.160 274.2);

Tailwind

colors: {
  custom: {
    50: '#9191de',
    500: '#5866ce',
    950: '#000000',
  },
}

SCSS

$custom: #5866ce;
$custom-light: #9191de;
$custom-dark: #000000;

JSON

{
  "hex": "#5866ce",
  "rgb": {
    "r": 88,
    "g": 102,
    "b": 206
  },
  "hsl": {
    "h": 232.881,
    "s": 54.63,
    "l": 57.647
  },
  "oklch": {
    "l": 0.55296,
    "c": 0.15971,
    "h": 274.2
  },
  "luminance": 0.16034
}

Semantic roles & 50–950 ramp

primary

#5866CE

secondary

#D9D3A9

accent

#CC4ADE

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0E0C15

muted

#7E7D83

Preview Lab

Preview with #5866CE

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

Preview Lab → · Contrast checker → · Palette generator →