#6556CB#6556CB

#6556CB is a mid, vivid blue. Relative luminance 0.137; OKLCH L 53.1% C 0.175 H 284.6°. Best body text is #FFFFFF at 5.60:1 contrast (WCAG AA passes).

Color values

HEX	#6556CB
RGB	rgb(101, 86, 203)
HSL	hsl(248, 53%, 57%)
HSV	hsv(248, 58%, 80%)
CMYK	cmyk(50.2%, 57.6%, 0%, 20.4%)
CIE-LAB	lab(43.85, 36.78, -59.05)
CIE-LCH	lch(43.85, 69.57, 301.92°)
OKLab	oklab(53.11% 0.044 -0.1689)
OKLCH	oklch(53.11% 0.175 284.6)
XYZ	xyz(19.4709, 13.7331, 58.1131)
Luminance	0.1373 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6556CB #BCCB56

analogous

#5682CB #6556CB #A056CB

triadic

#6556CB #CB6556 #56CB65

tetradic

#6556CB #CB5682 #BCCB56 #56CBA0

square

#6556CB #CB5682 #BCCB56 #56CBA0

split-complementary

#6556CB #CBA056 #82CB56

monochromatic

#33277F #4536AE #6556CB #9085D9 #BAB4E8

Accessibility & contrast

On white

5.60

#6556CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.75

#6556CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6556CB

5.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6556CB	#FFFFFF	#000000	##FFFFFF
##6556CB	1.00	5.60	3.75	5.60
#FFFFFF	5.60	1.00	21.00	1.00
#000000	3.75	21.00	1.00	21.00
##FFFFFF	5.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006BCF

Deuteranopia (green-blind)

#0064C9

Tritanopia (blue-blind)

#3F7188

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #6556cb;
/* rgb */ color: rgb(101, 86, 203);
/* oklch */ color: oklch(53.1% 0.175 284.6);

Tailwind

colors: {
  custom: {
    50: '#9886dc',
    500: '#6556cb',
    950: '#000000',
  },
}

SCSS

$custom: #6556cb;
$custom-light: #9886dc;
$custom-dark: #000000;

JSON

{
  "hex": "#6556cb",
  "rgb": {
    "r": 101,
    "g": 86,
    "b": 203
  },
  "hsl": {
    "h": 247.692,
    "s": 52.941,
    "l": 56.667
  },
  "oklch": {
    "l": 0.5311,
    "c": 0.17451,
    "h": 284.6
  },
  "luminance": 0.13734
}

Semantic roles & 50–950 ramp

primary

#6556CB

secondary

#D0D6A6

accent

#DC4BCA

background

#F9F8FD

surface

#F2EFFB

border

#CCCAD4

text

#0E0B15

muted

#7E7C83

Preview Lab

Preview with #6556CB

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

Preview Lab → · Contrast checker → · Palette generator →