#5866DD#5866DD

#5866DD is a mid, vivid blue. Relative luminance 0.168; OKLCH L 56.4% C 0.180 H 274.1°. Best body text is #FFFFFF at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#5866DD
RGB	rgb(88, 102, 221)
HSL	hsl(234, 66%, 61%)
HSV	hsv(234, 60%, 87%)
CMYK	cmyk(60.2%, 53.8%, 0%, 13.3%)
CIE-LAB	lab(48.00, 30.30, -62.66)
CIE-LCH	lch(48.00, 69.60, 295.80°)
OKLab	oklab(56.35% 0.0127 -0.1797)
OKLCH	oklch(56.35% 0.18 274.1)
XYZ	xyz(21.8227, 16.7962, 70.4846)
Luminance	0.1680 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5866DD #DDCF58

analogous

#58A8DD #5866DD #8C58DD

triadic

#5866DD #DD5866 #66DD58

tetradic

#5866DD #DD58A8 #DDCF58 #58DD8C

square

#5866DD #DD58A8 #DDCF58 #58DD8C

split-complementary

#5866DD #DD8C58 #A8DD58

monochromatic

#202D9B #2A3BCE #5866DD #8B95E7 #BEC3F2

Accessibility & contrast

On white

4.82

#5866DD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.36

#5866DD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5866DD

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5866DD	#FFFFFF	#000000	##FFFFFF
##5866DD	1.00	4.82	4.36	4.82
#FFFFFF	4.82	1.00	21.00	1.00
#000000	4.36	21.00	1.00	21.00
##FFFFFF	4.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1378E1

Deuteranopia (green-blind)

#006CDB

Tritanopia (blue-blind)

#008298

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #5866dd;
/* rgb */ color: rgb(88, 102, 221);
/* oklch */ color: oklch(56.4% 0.180 274.1);

Tailwind

colors: {
  custom: {
    50: '#9391e8',
    500: '#5866dd',
    950: '#000000',
  },
}

SCSS

$custom: #5866dd;
$custom-light: #9391e8;
$custom-dark: #000000;

JSON

{
  "hex": "#5866dd",
  "rgb": {
    "r": 88,
    "g": 102,
    "b": 221
  },
  "hsl": {
    "h": 233.684,
    "s": 66.169,
    "l": 60.588
  },
  "oklch": {
    "l": 0.56352,
    "c": 0.1802,
    "h": 274.1
  },
  "luminance": 0.16798
}

Semantic roles & 50–950 ramp

primary

#5866DD

secondary

#E2DCAF

accent

#BB17CE

background

#F9F8FE

surface

#F2F0FD

border

#CCCBD5

text

#0E0C16

muted

#7E7D84

Preview Lab

Preview with #5866DD

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

Preview Lab → · Contrast checker → · Palette generator →