#6558CC#6558CC

#6558CC is a mid, vivid blue. Relative luminance 0.141; OKLCH L 53.5% C 0.173 H 284.0°. Best body text is #FFFFFF at 5.50:1 contrast (WCAG AA passes).

Color values

HEX	#6558CC
RGB	rgb(101, 88, 204)
HSL	hsl(247, 53%, 57%)
HSV	hsv(247, 57%, 80%)
CMYK	cmyk(50.5%, 56.9%, 0%, 20%)
CIE-LAB	lab(44.38, 35.89, -58.76)
CIE-LCH	lch(44.38, 68.85, 301.42°)
OKLab	oklab(53.53% 0.0418 -0.168)
OKLCH	oklch(53.53% 0.173 284)
XYZ	xyz(19.7524, 14.1048, 58.7967)
Luminance	0.1411 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6558CC #BFCC58

analogous

#5885CC #6558CC #9F58CC

triadic

#6558CC #CC6558 #58CC65

tetradic

#6558CC #CC5885 #BFCC58 #58CC9F

square

#6558CC #CC5885 #BFCC58 #58CC9F

split-complementary

#6558CC #CC9F58 #85CC58

monochromatic

#322882 #4436B1 #6558CC #9087DA #BBB6E9

Accessibility & contrast

On white

5.50

#6558CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.82

#6558CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6558CC

5.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6558CC	#FFFFFF	#000000	##FFFFFF
##6558CC	1.00	5.50	3.82	5.50
#FFFFFF	5.50	1.00	21.00	1.00
#000000	3.82	21.00	1.00	21.00
##FFFFFF	5.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006DD0

Deuteranopia (green-blind)

#0065CA

Tritanopia (blue-blind)

#3E7289

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #6558cc;
/* rgb */ color: rgb(101, 88, 204);
/* oklch */ color: oklch(53.5% 0.173 284.0);

Tailwind

colors: {
  custom: {
    50: '#9887dc',
    500: '#6558cc',
    950: '#000000',
  },
}

SCSS

$custom: #6558cc;
$custom-light: #9887dc;
$custom-dark: #000000;

JSON

{
  "hex": "#6558cc",
  "rgb": {
    "r": 101,
    "g": 88,
    "b": 204
  },
  "hsl": {
    "h": 246.724,
    "s": 53.211,
    "l": 57.255
  },
  "oklch": {
    "l": 0.53527,
    "c": 0.17314,
    "h": 284
  },
  "luminance": 0.14106
}

Semantic roles & 50–950 ramp

primary

#6558CC

secondary

#D2D7A8

accent

#DD4BCC

background

#F9F8FD

surface

#F2EFFB

border

#CCCAD4

text

#0E0B15

muted

#7E7C83

Preview Lab

Preview with #6558CC

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

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