#566ECB#566ECB

#566ECB is a mid, vivid blue. Relative luminance 0.174; OKLCH L 56.6% C 0.146 H 270.3°. Best body text is #FFFFFF at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#566ECB
RGB	rgb(86, 110, 203)
HSL	hsl(228, 53%, 57%)
HSV	hsv(228, 58%, 80%)
CMYK	cmyk(57.6%, 45.8%, 0%, 20.4%)
CIE-LAB	lab(48.81, 18.98, -51.12)
CIE-LCH	lch(48.81, 54.53, 290.37°)
OKLab	oklab(56.57% 0.0008 -0.1457)
OKLCH	oklch(56.57% 0.146 270.3)
XYZ	xyz(20.1896, 17.4405, 58.7908)
Luminance	0.1744 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#566ECB #CBB356

analogous

#56A9CB #566ECB #7956CB

triadic

#566ECB #CB566E #6ECB56

tetradic

#566ECB #CB56A9 #CBB356 #56CB79

square

#566ECB #CB56A9 #CBB356 #56CB79

split-complementary

#566ECB #CB7956 #A9CB56

monochromatic

#27397F #364EAE #566ECB #8596D9 #B4BEE8

Accessibility & contrast

On white

4.68

#566ECB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.49

#566ECB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #566ECB

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##566ECB	#FFFFFF	#000000	##FFFFFF
##566ECB	1.00	4.68	4.49	4.68
#FFFFFF	4.68	1.00	21.00	1.00
#000000	4.49	21.00	1.00	21.00
##FFFFFF	4.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4379CE

Deuteranopia (green-blind)

#326FC9

Tritanopia (blue-blind)

#008393

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #566ecb;
/* rgb */ color: rgb(86, 110, 203);
/* oklch */ color: oklch(56.6% 0.146 270.3);

Tailwind

colors: {
  custom: {
    50: '#8f97db',
    500: '#566ecb',
    950: '#000000',
  },
}

SCSS

$custom: #566ecb;
$custom-light: #8f97db;
$custom-dark: #000000;

JSON

{
  "hex": "#566ecb",
  "rgb": {
    "r": 86,
    "g": 110,
    "b": 203
  },
  "hsl": {
    "h": 227.692,
    "s": 52.941,
    "l": 56.667
  },
  "oklch": {
    "l": 0.56566,
    "c": 0.14575,
    "h": 270.3
  },
  "luminance": 0.17442
}

Semantic roles & 50–950 ramp

primary

#566ECB

secondary

#D6CDA6

accent

#BF4BDC

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #566ECB

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

Preview Lab → · Contrast checker → · Palette generator →