#6440D3#6440D3

#6440D3 is a mid, highly saturated violet. Relative luminance 0.111; OKLCH L 50.3% C 0.212 H 287.4°. Best body text is #FFFFFF at 6.53:1 contrast (WCAG AA passes).

Color values

HEX	#6440D3
RGB	rgb(100, 64, 211)
HSL	hsl(255, 63%, 54%)
HSV	hsv(255, 70%, 83%)
CMYK	cmyk(52.6%, 69.7%, 0%, 17.3%)
CIE-LAB	lab(39.71, 51.41, -70.39)
CIE-LCH	lch(39.71, 87.17, 306.14°)
OKLab	oklab(50.28% 0.0634 -0.2023)
OKLCH	oklch(50.28% 0.212 287.4)
XYZ	xyz(18.8433, 11.0783, 62.7608)
Luminance	0.1108 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 3.29

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6440D3 #AFD340

analogous

#4066D3 #6440D3 #AE40D3

triadic

#6440D3 #D36440 #40D364

tetradic

#6440D3 #D34066 #AFD340 #40D3AE

square

#6440D3 #D34066 #AFD340 #40D3AE

split-complementary

#6440D3 #D3AE40 #66D340

monochromatic

#341D7C #4928AE #6440D3 #8C72DE #B5A3EA

Accessibility & contrast

On white

6.53

#6440D3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.22

#6440D3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6440D3

6.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6440D3	#FFFFFF	#000000	##FFFFFF
##6440D3	1.00	6.53	3.22	6.53
#FFFFFF	6.53	1.00	21.00	1.00
#000000	3.22	21.00	1.00	21.00
##FFFFFF	6.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061D7

Deuteranopia (green-blind)

#0059D0

Tritanopia (blue-blind)

#386685

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #6440d3;
/* rgb */ color: rgb(100, 64, 211);
/* oklch */ color: oklch(50.3% 0.212 287.4);

Tailwind

colors: {
  custom: {
    50: '#9a78e2',
    500: '#6440d3',
    950: '#000000',
  },
}

SCSS

$custom: #6440d3;
$custom-light: #9a78e2;
$custom-dark: #000000;

JSON

{
  "hex": "#6440d3",
  "rgb": {
    "r": 100,
    "g": 64,
    "b": 211
  },
  "hsl": {
    "h": 254.694,
    "s": 62.553,
    "l": 53.922
  },
  "oklch": {
    "l": 0.50276,
    "c": 0.21197,
    "h": 287.4
  },
  "luminance": 0.11079
}

Semantic roles & 50–950 ramp

primary

#6440D3

secondary

#C7D798

accent

#E642BE

background

#FAF7FE

surface

#F4EDFC

border

#CEC8D5

text

#0F0915

muted

#7F7B84

Preview Lab

Preview with #6440D3

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

Preview Lab → · Contrast checker → · Palette generator →