#5663CC#5663CC

#5663CC is a mid, vivid blue. Relative luminance 0.153; OKLCH L 54.4% C 0.161 H 274.4°. Best body text is #FFFFFF at 5.18:1 contrast (WCAG AA passes).

Color values

HEX	#5663CC
RGB	rgb(86, 99, 204)
HSL	hsl(233, 54%, 57%)
HSV	hsv(233, 58%, 80%)
CMYK	cmyk(57.8%, 51.5%, 0%, 20%)
CIE-LAB	lab(45.99, 26.16, -56.22)
CIE-LCH	lch(45.99, 62.01, 294.95°)
OKLab	oklab(54.45% 0.0125 -0.1609)
OKLCH	oklch(54.45% 0.161 274.4)
XYZ	xyz(19.1951, 15.2603, 59.0491)
Luminance	0.1526 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5663CC #CCBF56

analogous

#569ECC #5663CC #8456CC

triadic

#5663CC #CC5663 #63CC56

tetradic

#5663CC #CC569E #CCBF56 #56CC84

square

#5663CC #CC569E #CCBF56 #56CC84

split-complementary

#5663CC #CC8456 #9ECC56

monochromatic

#273181 #3543B0 #5663CC #858EDA #B4BAE8

Accessibility & contrast

On white

5.18

#5663CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.05

#5663CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5663CC

5.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5663CC	#FFFFFF	#000000	##FFFFFF
##5663CC	1.00	5.18	4.05	5.18
#FFFFFF	5.18	1.00	21.00	1.00
#000000	4.05	21.00	1.00	21.00
##FFFFFF	5.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2972D0

Deuteranopia (green-blind)

#0D68CA

Tritanopia (blue-blind)

#007B8E

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #5663cc;
/* rgb */ color: rgb(86, 99, 204);
/* oklch */ color: oklch(54.4% 0.161 274.4);

Tailwind

colors: {
  custom: {
    50: '#8f8fdc',
    500: '#5663cc',
    950: '#000000',
  },
}

SCSS

$custom: #5663cc;
$custom-light: #8f8fdc;
$custom-dark: #000000;

JSON

{
  "hex": "#5663cc",
  "rgb": {
    "r": 86,
    "g": 99,
    "b": 204
  },
  "hsl": {
    "h": 233.39,
    "s": 53.636,
    "l": 56.863
  },
  "oklch": {
    "l": 0.54447,
    "c": 0.16136,
    "h": 274.4
  },
  "luminance": 0.15262
}

Semantic roles & 50–950 ramp

primary

#5663CC

secondary

#D7D2A7

accent

#CD4BDD

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0D0C15

muted

#7E7D83

Preview Lab

Preview with #5663CC

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

Preview Lab → · Contrast checker → · Palette generator →