#6639D9#6639D9

#6639D9 is a mid, highly saturated violet. Relative luminance 0.108; OKLCH L 50.1% C 0.226 H 288.2°. Best body text is #FFFFFF at 6.66:1 contrast (WCAG AA passes).

Color values

HEX	#6639D9
RGB	rgb(102, 57, 217)
HSL	hsl(257, 68%, 54%)
HSV	hsv(257, 74%, 85%)
CMYK	cmyk(53%, 73.7%, 0%, 14.9%)
CIE-LAB	lab(39.17, 56.90, -74.72)
CIE-LCH	lch(39.17, 93.91, 307.29°)
OKLab	oklab(50.1% 0.0706 -0.2148)
OKLCH	oklch(50.1% 0.226 288.2)
XYZ	xyz(19.4633, 10.7598, 66.6835)
Luminance	0.1076 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6639D9 #ACD939

analogous

#395CD9 #6639D9 #B639D9

triadic

#6639D9 #D96639 #39D966

tetradic

#6639D9 #D9395C #ACD939 #39D9B6

square

#6639D9 #D9395C #ACD939 #39D9B6

split-complementary

#6639D9 #D9B639 #5CD939

monochromatic

#35187F #4B22B3 #6639D9 #8E6CE3 #B5A0ED

Accessibility & contrast

On white

6.66

#6639D9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#6639D9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6639D9

6.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6639D9	#FFFFFF	#000000	##FFFFFF
##6639D9	1.00	6.66	3.15	6.66
#FFFFFF	6.66	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060DE

Deuteranopia (green-blind)

#0058D6

Tritanopia (blue-blind)

#386586

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #6639d9;
/* rgb */ color: rgb(102, 57, 217);
/* oklch */ color: oklch(50.1% 0.226 288.2);

Tailwind

colors: {
  custom: {
    50: '#9d74e6',
    500: '#6639d9',
    950: '#000000',
  },
}

SCSS

$custom: #6639d9;
$custom-light: #9d74e6;
$custom-dark: #000000;

JSON

{
  "hex": "#6639d9",
  "rgb": {
    "r": 102,
    "g": 57,
    "b": 217
  },
  "hsl": {
    "h": 256.875,
    "s": 67.797,
    "l": 53.725
  },
  "oklch": {
    "l": 0.501,
    "c": 0.22616,
    "h": 288.2
  },
  "luminance": 0.10761
}

Semantic roles & 50–950 ramp

primary

#6639D9

secondary

#C6D995

accent

#EB3DBA

background

#FAF7FE

surface

#F4EDFD

border

#CEC8D5

text

#100816

muted

#7F7B84

Preview Lab

Preview with #6639D9

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

Preview Lab → · Contrast checker → · Palette generator →