#6558EB#6558EB

#6558EB is a mid, highly saturated blue. Relative luminance 0.157; OKLCH L 55.9% C 0.213 H 281.0°. Best body text is #FFFFFF at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#6558EB
RGB	rgb(101, 88, 235)
HSL	hsl(245, 79%, 63%)
HSV	hsv(245, 63%, 92%)
CMYK	cmyk(57%, 62.6%, 0%, 7.8%)
CIE-LAB	lab(46.64, 45.38, -72.75)
CIE-LCH	lch(46.64, 85.74, 301.95°)
OKLab	oklab(55.89% 0.0405 -0.2092)
OKLCH	oklch(55.89% 0.213 281)
XYZ	xyz(23.8473, 15.7427, 80.3632)
Luminance	0.1574 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6558EB #DEEB58

analogous

#5894EB #6558EB #AE58EB

triadic

#6558EB #EB6558 #58EB65

tetradic

#6558EB #EB5894 #DEEB58 #58EBAE

square

#6558EB #EB5894 #DEEB58 #58EBAE

split-complementary

#6558EB #EBAE58 #94EB58

monochromatic

#2315B3 #3321E4 #6558EB #978FF2 #CAC5F8

Accessibility & contrast

On white

5.06

#6558EB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.15

#6558EB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6558EB

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6558EB	#FFFFFF	#000000	##FFFFFF
##6558EB	1.00	5.06	4.15	5.06
#FFFFFF	5.06	1.00	21.00	1.00
#000000	4.15	21.00	1.00	21.00
##FFFFFF	5.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0074F0

Deuteranopia (green-blind)

#0069E8

Tritanopia (blue-blind)

#157C99

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #6558eb;
/* rgb */ color: rgb(101, 88, 235);
/* oklch */ color: oklch(55.9% 0.213 281.0);

Tailwind

colors: {
  custom: {
    50: '#9d88f2',
    500: '#6558eb',
    950: '#000000',
  },
}

SCSS

$custom: #6558eb;
$custom-light: #9d88f2;
$custom-dark: #000000;

JSON

{
  "hex": "#6558eb",
  "rgb": {
    "r": 101,
    "g": 88,
    "b": 235
  },
  "hsl": {
    "h": 245.306,
    "s": 78.61,
    "l": 63.333
  },
  "oklch": {
    "l": 0.5589,
    "c": 0.21306,
    "h": 281
  },
  "luminance": 0.15744
}

Semantic roles & 50–950 ramp

primary

#6558EB

secondary

#E5EAB5

accent

#DB0BC8

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0B17

muted

#7F7C85

Preview Lab

Preview with #6558EB

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

Preview Lab → · Contrast checker → · Palette generator →