#6551CA#6551CA

#6551CA is a mid, vivid blue. Relative luminance 0.129; OKLCH L 52.2% C 0.180 H 285.9°. Best body text is #FFFFFF at 5.86:1 contrast (WCAG AA passes).

Color values

HEX	#6551CA
RGB	rgb(101, 81, 202)
HSL	hsl(250, 53%, 55%)
HSV	hsv(250, 60%, 79%)
CMYK	cmyk(50%, 59.9%, 0%, 20.8%)
CIE-LAB	lab(42.63, 39.45, -60.43)
CIE-LCH	lch(42.63, 72.17, 303.13°)
OKLab	oklab(52.2% 0.0494 -0.173)
OKLCH	oklch(52.2% 0.18 285.9)
XYZ	xyz(18.9668, 12.9149, 57.3591)
Luminance	0.1292 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6551CA #B6CA51

analogous

#517ACA #6551CA #A151CA

triadic

#6551CA #CA6551 #51CA65

tetradic

#6551CA #CA517A #B6CA51 #51CAA1

square

#6551CA #CA517A #B6CA51 #51CAA1

split-complementary

#6551CA #CAA151 #7ACA51

monochromatic

#34257B #4734AA #6551CA #8F80D8 #B8AFE7

Accessibility & contrast

On white

5.86

#6551CA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.58

#6551CA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6551CA

5.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6551CA	#FFFFFF	#000000	##FFFFFF
##6551CA	1.00	5.86	3.58	5.86
#FFFFFF	5.86	1.00	21.00	1.00
#000000	3.58	21.00	1.00	21.00
##FFFFFF	5.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068CE

Deuteranopia (green-blind)

#0061C7

Tritanopia (blue-blind)

#406D86

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #6551ca;
/* rgb */ color: rgb(101, 81, 202);
/* oklch */ color: oklch(52.2% 0.180 285.9);

Tailwind

colors: {
  custom: {
    50: '#9983db',
    500: '#6551ca',
    950: '#000000',
  },
}

SCSS

$custom: #6551ca;
$custom-light: #9983db;
$custom-dark: #000000;

JSON

{
  "hex": "#6551ca",
  "rgb": {
    "r": 101,
    "g": 81,
    "b": 202
  },
  "hsl": {
    "h": 249.917,
    "s": 53.304,
    "l": 55.49
  },
  "oklch": {
    "l": 0.52195,
    "c": 0.17988,
    "h": 285.9
  },
  "luminance": 0.12916
}

Semantic roles & 50–950 ramp

primary

#6551CA

secondary

#CCD5A2

accent

#DD4BC5

background

#F9F8FD

surface

#F2EFFB

border

#CCCAD4

text

#0F0A15

muted

#7E7C83

Preview Lab

Preview with #6551CA

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

Preview Lab → · Contrast checker → · Palette generator →