#6557BE#6557BE

#6557BE is a mid, vivid blue. Relative luminance 0.133; OKLCH L 52.4% C 0.156 H 285.9°. Best body text is #FFFFFF at 5.74:1 contrast (WCAG AA passes).

Color values

HEX	#6557BE
RGB	rgb(101, 87, 190)
HSL	hsl(248, 44%, 54%)
HSV	hsv(248, 54%, 75%)
CMYK	cmyk(46.8%, 54.2%, 0%, 25.5%)
CIE-LAB	lab(43.21, 32.26, -52.54)
CIE-LCH	lch(43.21, 61.65, 301.55°)
OKLab	oklab(52.36% 0.0427 -0.1497)
OKLCH	oklch(52.36% 0.156 285.9)
XYZ	xyz(18.0666, 13.3000, 50.3204)
Luminance	0.1330 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6557BE #B0BE57

analogous

#577DBE #6557BE #9957BE

triadic

#6557BE #BE6557 #57BE65

tetradic

#6557BE #BE577D #B0BE57 #57BE99

square

#6557BE #BE577D #B0BE57 #57BE99

split-complementary

#6557BE #BE9957 #7DBE57

monochromatic

#342B6F #493C9C #6557BE #8D83CF #B6AFE0

Accessibility & contrast

On white

5.74

#6557BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.66

#6557BE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6557BE

5.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6557BE	#FFFFFF	#000000	##FFFFFF
##6557BE	1.00	5.74	3.66	5.74
#FFFFFF	5.74	1.00	21.00	1.00
#000000	3.66	21.00	1.00	21.00
##FFFFFF	5.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2069C2

Deuteranopia (green-blind)

#1D63BC

Tritanopia (blue-blind)

#486E82

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #6557be;
/* rgb */ color: rgb(101, 87, 190);
/* oklch */ color: oklch(52.4% 0.156 285.9);

Tailwind

colors: {
  custom: {
    50: '#9787d2',
    500: '#6557be',
    950: '#000000',
  },
}

SCSS

$custom: #6557be;
$custom-light: #9787d2;
$custom-dark: #000000;

JSON

{
  "hex": "#6557be",
  "rgb": {
    "r": 101,
    "g": 87,
    "b": 190
  },
  "hsl": {
    "h": 248.155,
    "s": 44.206,
    "l": 54.314
  },
  "oklch": {
    "l": 0.5236,
    "c": 0.1557,
    "h": 285.9
  },
  "luminance": 0.13301
}

Semantic roles & 50–950 ramp

primary

#6557BE

secondary

#C8CEA3

accent

#D454C3

background

#F9F8FD

surface

#F2EFFA

border

#CCCAD3

text

#0E0B14

muted

#7E7C83

Preview Lab

Preview with #6557BE

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

Preview Lab → · Contrast checker → · Palette generator →