#5866CA#5866CA

#5866CA is a mid, vivid blue. Relative luminance 0.158; OKLCH L 55.0% C 0.154 H 274.2°. Best body text is #FFFFFF at 5.04:1 contrast (WCAG AA passes).

Color values

HEX	#5866CA
RGB	rgb(88, 102, 202)
HSL	hsl(233, 52%, 57%)
HSV	hsv(233, 56%, 79%)
CMYK	cmyk(56.4%, 49.5%, 0%, 20.8%)
CIE-LAB	lab(46.76, 24.02, -53.82)
CIE-LCH	lch(46.76, 58.94, 294.05°)
OKLab	oklab(55.03% 0.0113 -0.1537)
OKLCH	oklch(55.03% 0.154 274.2)
XYZ	xyz(19.4331, 15.8403, 57.8991)
Luminance	0.1584 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5866CA #CABC58

analogous

#589FCA #5866CA #8358CA

triadic

#5866CA #CA5866 #66CA58

tetradic

#5866CA #CA589F #CABC58 #58CA83

square

#5866CA #CA589F #CABC58 #58CA83

split-complementary

#5866CA #CA8358 #9FCA58

monochromatic

#28337F #3746AE #5866CA #8691D9 #B5BBE7

Accessibility & contrast

On white

5.04

#5866CA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.17

#5866CA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5866CA

5.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5866CA	#FFFFFF	#000000	##FFFFFF
##5866CA	1.00	5.04	4.17	5.04
#FFFFFF	5.04	1.00	21.00	1.00
#000000	4.17	21.00	1.00	21.00
##FFFFFF	5.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3374CE

Deuteranopia (green-blind)

#216AC8

Tritanopia (blue-blind)

#137C8E

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #5866ca;
/* rgb */ color: rgb(88, 102, 202);
/* oklch */ color: oklch(55.0% 0.154 274.2);

Tailwind

colors: {
  custom: {
    50: '#9091db',
    500: '#5866ca',
    950: '#000000',
  },
}

SCSS

$custom: #5866ca;
$custom-light: #9091db;
$custom-dark: #000000;

JSON

{
  "hex": "#5866ca",
  "rgb": {
    "r": 88,
    "g": 102,
    "b": 202
  },
  "hsl": {
    "h": 232.632,
    "s": 51.818,
    "l": 56.863
  },
  "oklch": {
    "l": 0.55025,
    "c": 0.15415,
    "h": 274.2
  },
  "luminance": 0.15842
}

Semantic roles & 50–950 ramp

primary

#5866CA

secondary

#D6D0A8

accent

#CA4DDB

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0D0C15

muted

#7E7D83

Preview Lab

Preview with #5866CA

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

Preview Lab → · Contrast checker → · Palette generator →