#6557CA#6557CA

#6557CA is a mid, vivid blue. Relative luminance 0.138; OKLCH L 53.2% C 0.172 H 284.5°. Best body text is #FFFFFF at 5.57:1 contrast (WCAG AA passes).

Color values

HEX	#6557CA
RGB	rgb(101, 87, 202)
HSL	hsl(247, 52%, 57%)
HSV	hsv(247, 57%, 79%)
CMYK	cmyk(50%, 56.9%, 0%, 20.8%)
CIE-LAB	lab(44.01, 35.88, -58.20)
CIE-LCH	lch(44.01, 68.38, 301.65°)
OKLab	oklab(53.21% 0.0429 -0.1664)
OKLCH	oklch(53.21% 0.172 284.5)
XYZ	xyz(19.4325, 13.8464, 57.5143)
Luminance	0.1385 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6557CA #BCCA57

analogous

#5783CA #6557CA #9F57CA

triadic

#6557CA #CA6557 #57CA65

tetradic

#6557CA #CA5783 #BCCA57 #57CA9F

square

#6557CA #CA5783 #BCCA57 #57CA9F

split-complementary

#6557CA #CA9F57 #83CA57

monochromatic

#33287F #4537AD #6557CA #9086D9 #BAB4E7

Accessibility & contrast

On white

5.57

#6557CA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.77

#6557CA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6557CA

5.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6557CA	#FFFFFF	#000000	##FFFFFF
##6557CA	1.00	5.57	3.77	5.57
#FFFFFF	5.57	1.00	21.00	1.00
#000000	3.77	21.00	1.00	21.00
##FFFFFF	5.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006BCE

Deuteranopia (green-blind)

#0064C8

Tritanopia (blue-blind)

#407188

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #6557ca;
/* rgb */ color: rgb(101, 87, 202);
/* oklch */ color: oklch(53.2% 0.172 284.5);

Tailwind

colors: {
  custom: {
    50: '#9887db',
    500: '#6557ca',
    950: '#000000',
  },
}

SCSS

$custom: #6557ca;
$custom-light: #9887db;
$custom-dark: #000000;

JSON

{
  "hex": "#6557ca",
  "rgb": {
    "r": 101,
    "g": 87,
    "b": 202
  },
  "hsl": {
    "h": 247.304,
    "s": 52.036,
    "l": 56.667
  },
  "oklch": {
    "l": 0.53209,
    "c": 0.17184,
    "h": 284.5
  },
  "luminance": 0.13847
}

Semantic roles & 50–950 ramp

primary

#6557CA

secondary

#D0D6A7

accent

#DB4CCA

background

#F9F8FD

surface

#F2EFFB

border

#CCCAD4

text

#0E0B15

muted

#7E7C83

Preview Lab

Preview with #6557CA

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

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