#566FA5#566FA5

#566FA5 is a mid, moderate blue. Relative luminance 0.161; OKLCH L 54.6% C 0.090 H 264.7°. Best body text is #FFFFFF at 4.98:1 contrast (WCAG AA passes).

Color values

HEX	#566FA5
RGB	rgb(86, 111, 165)
HSL	hsl(221, 31%, 49%)
HSV	hsv(221, 48%, 65%)
CMYK	cmyk(47.9%, 32.7%, 0%, 35.3%)
CIE-LAB	lab(47.06, 6.06, -31.88)
CIE-LCH	lch(47.06, 32.45, 280.76°)
OKLab	oklab(54.56% -0.0084 -0.0895)
OKLCH	oklch(54.56% 0.09 264.7)
XYZ	xyz(16.3115, 16.0629, 37.8309)
Luminance	0.1606 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#566FA5 #A58C56

analogous

#5697A5 #566FA5 #6556A5

triadic

#566FA5 #A5566F #6FA556

tetradic

#566FA5 #A55697 #A58C56 #56A565

square

#566FA5 #A55697 #A58C56 #56A565

split-complementary

#566FA5 #A56556 #97A556

monochromatic

#2C3955 #41547D #566FA5 #7D91BB #A5B3D0

Accessibility & contrast

On white

4.98

#566FA5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.21

#566FA5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #566FA5

4.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##566FA5	#FFFFFF	#000000	##FFFFFF
##566FA5	1.00	4.98	4.21	4.98
#FFFFFF	4.98	1.00	21.00	1.00
#000000	4.21	21.00	1.00	21.00
##FFFFFF	4.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B73A7

Deuteranopia (green-blind)

#526CA4

Tritanopia (blue-blind)

#367A82

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #566fa5;
/* rgb */ color: rgb(86, 111, 165);
/* oklch */ color: oklch(54.6% 0.090 264.7);

Tailwind

colors: {
  custom: {
    50: '#8a98c0',
    500: '#566fa5',
    950: '#000000',
  },
}

SCSS

$custom: #566fa5;
$custom-light: #8a98c0;
$custom-dark: #000000;

JSON

{
  "hex": "#566fa5",
  "rgb": {
    "r": 86,
    "g": 111,
    "b": 165
  },
  "hsl": {
    "h": 221.013,
    "s": 31.474,
    "l": 49.216
  },
  "oklch": {
    "l": 0.54555,
    "c": 0.08993,
    "h": 264.7
  },
  "luminance": 0.16064
}

Semantic roles & 50–950 ramp

primary

#566FA5

secondary

#BEB299

accent

#A760C8

background

#F8F9FB

surface

#F0F2F7

border

#CBCCD0

text

#0C0D12

muted

#7D7E81

Preview Lab

Preview with #566FA5

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

Preview Lab → · Contrast checker → · Palette generator →