#6555BB#6555BB

#6555BB is a mid, vivid blue. Relative luminance 0.129; OKLCH L 51.8% C 0.154 H 286.9°. Best body text is #FFFFFF at 5.88:1 contrast (WCAG AA passes).

Color values

HEX	#6555BB
RGB	rgb(101, 85, 187)
HSL	hsl(249, 43%, 53%)
HSV	hsv(249, 55%, 73%)
CMYK	cmyk(46%, 54.5%, 0%, 26.7%)
CIE-LAB	lab(42.54, 32.58, -51.88)
CIE-LCH	lch(42.54, 61.26, 302.13°)
OKLab	oklab(51.8% 0.0449 -0.1478)
OKLCH	oklch(51.8% 0.154 286.9)
XYZ	xyz(17.5824, 12.8508, 48.5581)
Luminance	0.1285 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6555BB #ABBB55

analogous

#5578BB #6555BB #9855BB

triadic

#6555BB #BB6555 #55BB65

tetradic

#6555BB #BB5578 #ABBB55 #55BB98

square

#6555BB #BB5578 #ABBB55 #55BB98

split-complementary

#6555BB #BB9855 #78BB55

monochromatic

#352B6B #4A3C97 #6555BB #8D81CC #B4ACDE

Accessibility & contrast

On white

5.88

#6555BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.57

#6555BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6555BB

5.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6555BB	#FFFFFF	#000000	##FFFFFF
##6555BB	1.00	5.88	3.57	5.88
#FFFFFF	5.88	1.00	21.00	1.00
#000000	3.57	21.00	1.00	21.00
##FFFFFF	5.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F67BE

Deuteranopia (green-blind)

#1E62B9

Tritanopia (blue-blind)

#4A6B80

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #6555bb;
/* rgb */ color: rgb(101, 85, 187);
/* oklch */ color: oklch(51.8% 0.154 286.9);

Tailwind

colors: {
  custom: {
    50: '#9685d0',
    500: '#6555bb',
    950: '#000000',
  },
}

SCSS

$custom: #6555bb;
$custom-light: #9685d0;
$custom-dark: #000000;

JSON

{
  "hex": "#6555bb",
  "rgb": {
    "r": 101,
    "g": 85,
    "b": 187
  },
  "hsl": {
    "h": 249.412,
    "s": 42.857,
    "l": 53.333
  },
  "oklch": {
    "l": 0.51797,
    "c": 0.15447,
    "h": 286.9
  },
  "luminance": 0.12852
}

Semantic roles & 50–950 ramp

primary

#6555BB

secondary

#C5CCA0

accent

#D355BF

background

#F9F8FC

surface

#F2EFF9

border

#CCCAD2

text

#0E0B14

muted

#7E7C82

Preview Lab

Preview with #6555BB

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

Preview Lab → · Contrast checker → · Palette generator →