#5663CB#5663CB

#5663CB is a mid, vivid blue. Relative luminance 0.152; OKLCH L 54.4% C 0.160 H 274.4°. Best body text is #FFFFFF at 5.19:1 contrast (WCAG AA passes).

Color values

HEX	#5663CB
RGB	rgb(86, 99, 203)
HSL	hsl(233, 53%, 57%)
HSV	hsv(233, 58%, 80%)
CMYK	cmyk(57.6%, 51.2%, 0%, 20.4%)
CIE-LAB	lab(45.92, 25.83, -55.75)
CIE-LCH	lch(45.92, 61.44, 294.86°)
OKLab	oklab(54.38% 0.0124 -0.1595)
OKLCH	oklch(54.38% 0.16 274.4)
XYZ	xyz(19.0756, 15.2125, 58.4194)
Luminance	0.1521 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5663CB #CBBE56

analogous

#569ECB #5663CB #8456CB

triadic

#5663CB #CB5663 #63CB56

tetradic

#5663CB #CB569E #CBBE56 #56CB84

square

#5663CB #CB569E #CBBE56 #56CB84

split-complementary

#5663CB #CB8456 #9ECB56

monochromatic

#27317F #3643AE #5663CB #858ED9 #B4B9E8

Accessibility & contrast

On white

5.19

#5663CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.04

#5663CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5663CB

5.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5663CB	#FFFFFF	#000000	##FFFFFF
##5663CB	1.00	5.19	4.04	5.19
#FFFFFF	5.19	1.00	21.00	1.00
#000000	4.04	21.00	1.00	21.00
##FFFFFF	5.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A72CF

Deuteranopia (green-blind)

#1168C9

Tritanopia (blue-blind)

#027B8D

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #5663cb;
/* rgb */ color: rgb(86, 99, 203);
/* oklch */ color: oklch(54.4% 0.160 274.4);

Tailwind

colors: {
  custom: {
    50: '#8f8fdb',
    500: '#5663cb',
    950: '#000000',
  },
}

SCSS

$custom: #5663cb;
$custom-light: #8f8fdb;
$custom-dark: #000000;

JSON

{
  "hex": "#5663cb",
  "rgb": {
    "r": 86,
    "g": 99,
    "b": 203
  },
  "hsl": {
    "h": 233.333,
    "s": 52.941,
    "l": 56.667
  },
  "oklch": {
    "l": 0.54377,
    "c": 0.15997,
    "h": 274.4
  },
  "luminance": 0.15214
}

Semantic roles & 50–950 ramp

primary

#5663CB

secondary

#D6D1A6

accent

#CC4BDC

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0D0C15

muted

#7E7D83

Preview Lab

Preview with #5663CB

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

Preview Lab → · Contrast checker → · Palette generator →