#6557BD#6557BD

#6557BD is a mid, vivid blue. Relative luminance 0.133; OKLCH L 52.3% C 0.154 H 286.0°. Best body text is #FFFFFF at 5.75:1 contrast (WCAG AA passes).

Color values

HEX	#6557BD
RGB	rgb(101, 87, 189)
HSL	hsl(248, 44%, 54%)
HSV	hsv(248, 54%, 74%)
CMYK	cmyk(46.6%, 54%, 0%, 25.9%)
CIE-LAB	lab(43.15, 31.96, -52.06)
CIE-LCH	lch(43.15, 61.09, 301.55°)
OKLab	oklab(52.29% 0.0426 -0.1483)
OKLCH	oklch(52.29% 0.154 286)
XYZ	xyz(17.9577, 13.2564, 49.7468)
Luminance	0.1326 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6557BD #AFBD57

analogous

#577CBD #6557BD #9857BD

triadic

#6557BD #BD6557 #57BD65

tetradic

#6557BD #BD577C #AFBD57 #57BD98

square

#6557BD #BD577C #AFBD57 #57BD98

split-complementary

#6557BD #BD9857 #7CBD57

monochromatic

#352B6E #493D9A #6557BD #8D83CE #B6AFE0

Accessibility & contrast

On white

5.75

#6557BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.65

#6557BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6557BD

5.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6557BD	#FFFFFF	#000000	##FFFFFF
##6557BD	1.00	5.75	3.65	5.75
#FFFFFF	5.75	1.00	21.00	1.00
#000000	3.65	21.00	1.00	21.00
##FFFFFF	5.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2269C1

Deuteranopia (green-blind)

#1F63BB

Tritanopia (blue-blind)

#486D81

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #6557bd;
/* rgb */ color: rgb(101, 87, 189);
/* oklch */ color: oklch(52.3% 0.154 286.0);

Tailwind

colors: {
  custom: {
    50: '#9786d1',
    500: '#6557bd',
    950: '#000000',
  },
}

SCSS

$custom: #6557bd;
$custom-light: #9786d1;
$custom-dark: #000000;

JSON

{
  "hex": "#6557bd",
  "rgb": {
    "r": 101,
    "g": 87,
    "b": 189
  },
  "hsl": {
    "h": 248.235,
    "s": 43.59,
    "l": 54.118
  },
  "oklch": {
    "l": 0.52292,
    "c": 0.15433,
    "h": 286
  },
  "luminance": 0.13257
}

Semantic roles & 50–950 ramp

primary

#6557BD

secondary

#C8CEA2

accent

#D354C2

background

#F9F8FC

surface

#F2EFF9

border

#CCCAD2

text

#0E0B14

muted

#7E7C82

Preview Lab

Preview with #6557BD

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

Preview Lab → · Contrast checker → · Palette generator →