#6558CB#6558CB

#6558CB is a mid, vivid blue. Relative luminance 0.141; OKLCH L 53.5% C 0.172 H 284.1°. Best body text is #FFFFFF at 5.51:1 contrast (WCAG AA passes).

Color values

HEX	#6558CB
RGB	rgb(101, 88, 203)
HSL	hsl(247, 53%, 57%)
HSV	hsv(247, 57%, 80%)
CMYK	cmyk(50.2%, 56.7%, 0%, 20.4%)
CIE-LAB	lab(44.31, 35.59, -58.29)
CIE-LCH	lch(44.31, 68.30, 301.40°)
OKLab	oklab(53.45% 0.0418 -0.1666)
OKLCH	oklch(53.45% 0.172 284.1)
XYZ	xyz(19.6328, 14.0569, 58.1671)
Luminance	0.1406 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6558CB #BECB58

analogous

#5884CB #6558CB #9F58CB

triadic

#6558CB #CB6558 #58CB65

tetradic

#6558CB #CB5884 #BECB58 #58CB9F

square

#6558CB #CB5884 #BECB58 #58CB9F

split-complementary

#6558CB #CB9F58 #84CB58

monochromatic

#322881 #4437AF #6558CB #9087DA #BBB5E8

Accessibility & contrast

On white

5.51

#6558CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.81

#6558CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6558CB

5.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6558CB	#FFFFFF	#000000	##FFFFFF
##6558CB	1.00	5.51	3.81	5.51
#FFFFFF	5.51	1.00	21.00	1.00
#000000	3.81	21.00	1.00	21.00
##FFFFFF	5.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#016CCF

Deuteranopia (green-blind)

#0065C9

Tritanopia (blue-blind)

#3F7289

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #6558cb;
/* rgb */ color: rgb(101, 88, 203);
/* oklch */ color: oklch(53.5% 0.172 284.1);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#6558cb",
  "rgb": {
    "r": 101,
    "g": 88,
    "b": 203
  },
  "hsl": {
    "h": 246.783,
    "s": 52.511,
    "l": 57.059
  },
  "oklch": {
    "l": 0.53454,
    "c": 0.17181,
    "h": 284.1
  },
  "luminance": 0.14058
}

Semantic roles & 50–950 ramp

primary

#6558CB

secondary

#D1D7A8

accent

#DC4CCC

background

#F9F8FD

surface

#F2EFFB

border

#CCCAD4

text

#0E0B15

muted

#7E7C83

Preview Lab

Preview with #6558CB

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

Preview Lab → · Contrast checker → · Palette generator →