#644FD7#644FD7

#644FD7 is a mid, vivid blue. Relative luminance 0.132; OKLCH L 52.8% C 0.199 H 284.3°. Best body text is #FFFFFF at 5.77:1 contrast (WCAG AA passes).

Color values

HEX	#644FD7
RGB	rgb(100, 79, 215)
HSL	hsl(249, 63%, 58%)
HSV	hsv(249, 63%, 84%)
CMYK	cmyk(53.5%, 63.3%, 0%, 15.7%)
CIE-LAB	lab(43.07, 44.32, -67.20)
CIE-LCH	lch(43.07, 80.50, 303.40°)
OKLab	oklab(52.8% 0.0492 -0.1929)
OKLCH	oklch(52.8% 0.199 284.3)
XYZ	xyz(20.3135, 13.2064, 65.7555)
Luminance	0.1321 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644FD7 #C2D74F

analogous

#4F7ED7 #644FD7 #A84FD7

triadic

#644FD7 #D7644F #4FD764

tetradic

#644FD7 #D74F7E #C2D74F #4FD7A8

square

#644FD7 #D74F7E #C2D74F #4FD7A8

split-complementary

#644FD7 #D7A84F #7ED74F

monochromatic

#30208C #422BBE #644FD7 #9081E2 #BCB3EE

Accessibility & contrast

On white

5.77

#644FD7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.64

#644FD7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644FD7

5.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644FD7	#FFFFFF	#000000	##FFFFFF
##644FD7	1.00	5.77	3.64	5.77
#FFFFFF	5.77	1.00	21.00	1.00
#000000	3.64	21.00	1.00	21.00
##FFFFFF	5.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006ADB

Deuteranopia (green-blind)

#0061D4

Tritanopia (blue-blind)

#33708C

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #644fd7;
/* rgb */ color: rgb(100, 79, 215);
/* oklch */ color: oklch(52.8% 0.199 284.3);

Tailwind

colors: {
  custom: {
    50: '#9a81e4',
    500: '#644fd7',
    950: '#000000',
  },
}

SCSS

$custom: #644fd7;
$custom-light: #9a81e4;
$custom-dark: #000000;

JSON

{
  "hex": "#644fd7",
  "rgb": {
    "r": 100,
    "g": 79,
    "b": 215
  },
  "hsl": {
    "h": 249.265,
    "s": 62.963,
    "l": 57.647
  },
  "oklch": {
    "l": 0.52797,
    "c": 0.19909,
    "h": 284.3
  },
  "luminance": 0.13208
}

Semantic roles & 50–950 ramp

primary

#644FD7

secondary

#D4DCA6

accent

#E642CD

background

#FAF8FE

surface

#F3EFFC

border

#CDCAD5

text

#0F0A16

muted

#7F7C84

Preview Lab

Preview with #644FD7

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

Preview Lab → · Contrast checker → · Palette generator →