#566BC3#566BC3

#566BC3 is a mid, vivid blue. Relative luminance 0.164; OKLCH L 55.4% C 0.138 H 271.2°. Best body text is #FFFFFF at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#566BC3
RGB	rgb(86, 107, 195)
HSL	hsl(228, 48%, 55%)
HSV	hsv(228, 56%, 76%)
CMYK	cmyk(55.9%, 45.1%, 0%, 23.5%)
CIE-LAB	lab(47.54, 18.19, -48.56)
CIE-LCH	lch(47.54, 51.86, 290.54°)
OKLab	oklab(55.44% 0.0028 -0.1383)
OKLCH	oklch(55.44% 0.138 271.2)
XYZ	xyz(18.9425, 16.4326, 53.7928)
Luminance	0.1643 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#566BC3 #C3AE56

analogous

#56A2C3 #566BC3 #7756C3

triadic

#566BC3 #C3566B #6BC356

tetradic

#566BC3 #C356A2 #C3AE56 #56C377

square

#566BC3 #C356A2 #C3AE56 #56C377

split-complementary

#566BC3 #C37756 #A2C356

monochromatic

#2A3875 #3A4EA2 #566BC3 #8393D3 #B0BAE3

Accessibility & contrast

On white

4.90

#566BC3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.29

#566BC3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #566BC3

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##566BC3	#FFFFFF	#000000	##FFFFFF
##566BC3	1.00	4.90	4.29	4.90
#FFFFFF	4.90	1.00	21.00	1.00
#000000	4.29	21.00	1.00	21.00
##FFFFFF	4.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4476C6

Deuteranopia (green-blind)

#366CC1

Tritanopia (blue-blind)

#167E8D

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #566bc3;
/* rgb */ color: rgb(86, 107, 195);
/* oklch */ color: oklch(55.4% 0.138 271.2);

Tailwind

colors: {
  custom: {
    50: '#8e95d6',
    500: '#566bc3',
    950: '#000000',
  },
}

SCSS

$custom: #566bc3;
$custom-light: #8e95d6;
$custom-dark: #000000;

JSON

{
  "hex": "#566bc3",
  "rgb": {
    "r": 86,
    "g": 107,
    "b": 195
  },
  "hsl": {
    "h": 228.44,
    "s": 47.598,
    "l": 55.098
  },
  "oklch": {
    "l": 0.55442,
    "c": 0.13831,
    "h": 271.2
  },
  "luminance": 0.16434
}

Semantic roles & 50–950 ramp

primary

#566BC3

secondary

#D1C8A4

accent

#BD51D7

background

#F9F9FD

surface

#F1F1FA

border

#CBCBD3

text

#0D0D14

muted

#7E7E83

Preview Lab

Preview with #566BC3

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

Preview Lab → · Contrast checker → · Palette generator →