#6440CB#6440CB

#6440CB is a mid, highly saturated violet. Relative luminance 0.107; OKLCH L 49.6% C 0.203 H 288.7°. Best body text is #FFFFFF at 6.69:1 contrast (WCAG AA passes).

Color values

HEX	#6440CB
RGB	rgb(100, 64, 203)
HSL	hsl(256, 57%, 52%)
HSV	hsv(256, 68%, 80%)
CMYK	cmyk(50.7%, 68.5%, 0%, 20.4%)
CIE-LAB	lab(39.05, 49.14, -66.85)
CIE-LCH	lch(39.05, 82.97, 306.32°)
OKLab	oklab(49.6% 0.0648 -0.1919)
OKLCH	oklch(49.6% 0.203 288.7)
XYZ	xyz(17.8653, 10.6871, 57.6098)
Luminance	0.1069 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6440CB #A7CB40

analogous

#4061CB #6440CB #AA40CB

triadic

#6440CB #CB6440 #40CB64

tetradic

#6440CB #CB4061 #A7CB40 #40CBAA

square

#6440CB #CB4061 #A7CB40 #40CBAA

split-complementary

#6440CB #CBAA40 #61CB40

monochromatic

#341F72 #4B2CA2 #6440CB #8B70D8 #B2A0E5

Accessibility & contrast

On white

6.69

#6440CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#6440CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6440CB

6.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6440CB	#FFFFFF	#000000	##FFFFFF
##6440CB	1.00	6.69	3.14	6.69
#FFFFFF	6.69	1.00	21.00	1.00
#000000	3.14	21.00	1.00	21.00
##FFFFFF	6.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FCF

Deuteranopia (green-blind)

#0058C8

Tritanopia (blue-blind)

#3F6380

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #6440cb;
/* rgb */ color: rgb(100, 64, 203);
/* oklch */ color: oklch(49.6% 0.203 288.7);

Tailwind

colors: {
  custom: {
    50: '#9977dc',
    500: '#6440cb',
    950: '#000000',
  },
}

SCSS

$custom: #6440cb;
$custom-light: #9977dc;
$custom-dark: #000000;

JSON

{
  "hex": "#6440cb",
  "rgb": {
    "r": 100,
    "g": 64,
    "b": 203
  },
  "hsl": {
    "h": 255.54,
    "s": 57.202,
    "l": 52.353
  },
  "oklch": {
    "l": 0.49597,
    "c": 0.20252,
    "h": 288.7
  },
  "luminance": 0.10688
}

Semantic roles & 50–950 ramp

primary

#6440CB

secondary

#C2D295

accent

#E047B9

background

#FAF7FD

surface

#F3EDFB

border

#CDC8D4

text

#0F0915

muted

#7F7B83

Preview Lab

Preview with #6440CB

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

Preview Lab → · Contrast checker → · Palette generator →