#5866D8#5866D8

#5866D8 is a mid, vivid blue. Relative luminance 0.165; OKLCH L 56.0% C 0.173 H 274.1°. Best body text is #FFFFFF at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#5866D8
RGB	rgb(88, 102, 216)
HSL	hsl(233, 62%, 60%)
HSV	hsv(233, 59%, 85%)
CMYK	cmyk(59.3%, 52.8%, 0%, 15.3%)
CIE-LAB	lab(47.67, 28.64, -60.37)
CIE-LCH	lch(47.67, 66.82, 295.38°)
OKLab	oklab(55.99% 0.0125 -0.173)
OKLCH	oklch(55.99% 0.173 274.1)
XYZ	xyz(21.1665, 16.5337, 67.0283)
Luminance	0.1653 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5866D8 #D8CA58

analogous

#58A6D8 #5866D8 #8A58D8

triadic

#5866D8 #D85866 #66D858

tetradic

#5866D8 #D858A6 #D8CA58 #58D88A

square

#5866D8 #D858A6 #D8CA58 #58D88A

split-complementary

#5866D8 #D88A58 #A6D858

monochromatic

#222F93 #2E3EC5 #5866D8 #8A93E4 #BBC1EF

Accessibility & contrast

On white

4.88

#5866D8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.31

#5866D8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5866D8

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5866D8	#FFFFFF	#000000	##FFFFFF
##5866D8	1.00	4.88	4.31	4.88
#FFFFFF	4.88	1.00	21.00	1.00
#000000	4.31	21.00	1.00	21.00
##FFFFFF	4.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F77DC

Deuteranopia (green-blind)

#006CD6

Tritanopia (blue-blind)

#008095

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #5866d8;
/* rgb */ color: rgb(88, 102, 216);
/* oklch */ color: oklch(56.0% 0.173 274.1);

Tailwind

colors: {
  custom: {
    50: '#9291e5',
    500: '#5866d8',
    950: '#000000',
  },
}

SCSS

$custom: #5866d8;
$custom-light: #9291e5;
$custom-dark: #000000;

JSON

{
  "hex": "#5866d8",
  "rgb": {
    "r": 88,
    "g": 102,
    "b": 216
  },
  "hsl": {
    "h": 233.438,
    "s": 62.136,
    "l": 59.608
  },
  "oklch": {
    "l": 0.55994,
    "c": 0.17344,
    "h": 274.1
  },
  "luminance": 0.16535
}

Semantic roles & 50–950 ramp

primary

#5866D8

secondary

#DFD9AD

accent

#D343E5

background

#F9F8FE

surface

#F2F0FC

border

#CCCBD5

text

#0E0C16

muted

#7E7D84

Preview Lab

Preview with #5866D8

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

Preview Lab → · Contrast checker → · Palette generator →