#6551DB#6551DB

#6551DB is a mid, highly saturated blue. Relative luminance 0.138; OKLCH L 53.5% C 0.202 H 283.9°. Best body text is #FFFFFF at 5.60:1 contrast (WCAG AA passes).

Color values

HEX	#6551DB
RGB	rgb(101, 81, 219)
HSL	hsl(249, 66%, 59%)
HSV	hsv(249, 63%, 86%)
CMYK	cmyk(53.9%, 63%, 0%, 14.1%)
CIE-LAB	lab(43.89, 44.55, -68.15)
CIE-LCH	lch(43.89, 81.42, 303.17°)
OKLab	oklab(53.51% 0.0483 -0.1957)
OKLCH	oklch(53.51% 0.202 283.9)
XYZ	xyz(21.0916, 13.7648, 68.5496)
Luminance	0.1377 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6551DB #C7DB51

analogous

#5182DB #6551DB #AA51DB

triadic

#6551DB #DB6551 #51DB65

tetradic

#6551DB #DB5182 #C7DB51 #51DBAA

square

#6551DB #DB5182 #C7DB51 #51DBAA

split-complementary

#6551DB #DBAA51 #82DB51

monochromatic

#2F1E93 #4029C6 #6551DB #9284E5 #BFB6F0

Accessibility & contrast

On white

5.60

#6551DB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.75

#6551DB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6551DB

5.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6551DB	#FFFFFF	#000000	##FFFFFF
##6551DB	1.00	5.60	3.75	5.60
#FFFFFF	5.60	1.00	21.00	1.00
#000000	3.75	21.00	1.00	21.00
##FFFFFF	5.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006CDF

Deuteranopia (green-blind)

#0063D8

Tritanopia (blue-blind)

#31738F

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #6551db;
/* rgb */ color: rgb(101, 81, 219);
/* oklch */ color: oklch(53.5% 0.202 283.9);

Tailwind

colors: {
  custom: {
    50: '#9b83e7',
    500: '#6551db',
    950: '#000000',
  },
}

SCSS

$custom: #6551db;
$custom-light: #9b83e7;
$custom-dark: #000000;

JSON

{
  "hex": "#6551db",
  "rgb": {
    "r": 101,
    "g": 81,
    "b": 219
  },
  "hsl": {
    "h": 248.696,
    "s": 65.714,
    "l": 58.824
  },
  "oklch": {
    "l": 0.5351,
    "c": 0.20152,
    "h": 283.9
  },
  "luminance": 0.13766
}

Semantic roles & 50–950 ramp

primary

#6551DB

secondary

#D7DFA9

accent

#E93FD0

background

#FAF8FE

surface

#F4EFFD

border

#CECAD5

text

#0F0B16

muted

#7F7C84

Preview Lab

Preview with #6551DB

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

Preview Lab → · Contrast checker → · Palette generator →