#6551FF#6551FF

#6551FF is a mid, highly saturated blue. Relative luminance 0.159; OKLCH L 56.5% C 0.245 H 280.3°. Best body text is #FFFFFF at 5.03:1 contrast (WCAG AA passes).

Color values

HEX	#6551FF
RGB	rgb(101, 81, 255)
HSL	hsl(247, 100%, 66%)
HSV	hsv(247, 68%, 100%)
CMYK	cmyk(60.4%, 68.2%, 0%, 0%)
CIE-LAB	lab(46.80, 55.34, -83.67)
CIE-LCH	lch(46.80, 100.32, 303.48°)
OKLab	oklab(56.51% 0.0438 -0.2412)
OKLCH	oklch(56.51% 0.245 280.3)
XYZ	xyz(26.3535, 15.8696, 96.2628)
Luminance	0.1587 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6551FF #EBFF51

analogous

#5194FF #6551FF #BC51FF

triadic

#6551FF #FF6551 #51FF65

tetradic

#6551FF #FF5194 #EBFF51 #51FFBC

square

#6551FF #FF5194 #EBFF51 #51FFBC

split-complementary

#6551FF #FFBC51 #94FF51

monochromatic

#1900D6 #2F14FF #6551FF #9B8EFF #D1CBFF

Accessibility & contrast

On white

5.03

#6551FF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.17

#6551FF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6551FF

5.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6551FF	#FFFFFF	#000000	##FFFFFF
##6551FF	1.00	5.03	4.17	5.03
#FFFFFF	5.03	1.00	21.00	1.00
#000000	4.17	21.00	1.00	21.00
##FFFFFF	5.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0075FF

Deuteranopia (green-blind)

#0068FC

Tritanopia (blue-blind)

#007FA2

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #6551ff;
/* rgb */ color: rgb(101, 81, 255);
/* oklch */ color: oklch(56.5% 0.245 280.3);

Tailwind

colors: {
  custom: {
    50: '#a084ff',
    500: '#6551ff',
    950: '#000000',
  },
}

SCSS

$custom: #6551ff;
$custom-light: #a084ff;
$custom-dark: #000000;

JSON

{
  "hex": "#6551ff",
  "rgb": {
    "r": 101,
    "g": 81,
    "b": 255
  },
  "hsl": {
    "h": 246.897,
    "s": 100,
    "l": 65.882
  },
  "oklch": {
    "l": 0.5651,
    "c": 0.24515,
    "h": 280.3
  },
  "luminance": 0.15872
}

Semantic roles & 50–950 ramp

primary

#6551FF

secondary

#ECF3B9

accent

#E600CB

background

#FAF8FF

surface

#F4EFFF

border

#CECAD7

text

#100B18

muted

#7F7C86

Preview Lab

Preview with #6551FF

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

Preview Lab → · Contrast checker → · Palette generator →