#6551CD#6551CD

#6551CD is a mid, vivid blue. Relative luminance 0.131; OKLCH L 52.4% C 0.184 H 285.5°. Best body text is #FFFFFF at 5.81:1 contrast (WCAG AA passes).

Color values

HEX	#6551CD
RGB	rgb(101, 81, 205)
HSL	hsl(250, 55%, 56%)
HSV	hsv(250, 60%, 80%)
CMYK	cmyk(50.7%, 60.5%, 0%, 19.6%)
CIE-LAB	lab(42.85, 40.34, -61.81)
CIE-LCH	lch(42.85, 73.81, 303.13°)
OKLab	oklab(52.42% 0.0492 -0.177)
OKLCH	oklch(52.42% 0.184 285.5)
XYZ	xyz(19.3254, 13.0584, 59.2480)
Luminance	0.1306 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6551CD #B9CD51

analogous

#517BCD #6551CD #A351CD

triadic

#6551CD #CD6551 #51CD65

tetradic

#6551CD #CD517B #B9CD51 #51CDA3

square

#6551CD #CD517B #B9CD51 #51CDA3

split-complementary

#6551CD #CDA351 #7BCD51

monochromatic

#33257F #4632AF #6551CD #8F81DB #B9B0E8

Accessibility & contrast

On white

5.81

#6551CD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.61

#6551CD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6551CD

5.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6551CD	#FFFFFF	#000000	##FFFFFF
##6551CD	1.00	5.81	3.61	5.81
#FFFFFF	5.81	1.00	21.00	1.00
#000000	3.61	21.00	1.00	21.00
##FFFFFF	5.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0069D1

Deuteranopia (green-blind)

#0061CA

Tritanopia (blue-blind)

#3E6E87

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #6551cd;
/* rgb */ color: rgb(101, 81, 205);
/* oklch */ color: oklch(52.4% 0.184 285.5);

Tailwind

colors: {
  custom: {
    50: '#9983dd',
    500: '#6551cd',
    950: '#000000',
  },
}

SCSS

$custom: #6551cd;
$custom-light: #9983dd;
$custom-dark: #000000;

JSON

{
  "hex": "#6551cd",
  "rgb": {
    "r": 101,
    "g": 81,
    "b": 205
  },
  "hsl": {
    "h": 249.677,
    "s": 55.357,
    "l": 56.078
  },
  "oklch": {
    "l": 0.52422,
    "c": 0.18375,
    "h": 285.5
  },
  "luminance": 0.13059
}

Semantic roles & 50–950 ramp

primary

#6551CD

secondary

#CED7A3

accent

#DF49C7

background

#F9F8FD

surface

#F2EFFB

border

#CCCAD4

text

#0F0A15

muted

#7E7C83

Preview Lab

Preview with #6551CD

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

Preview Lab → · Contrast checker → · Palette generator →