#644EF7#644EF7

#644EF7 is a mid, highly saturated blue. Relative luminance 0.149; OKLCH L 55.3% C 0.239 H 281.1°. Best body text is #FFFFFF at 5.28:1 contrast (WCAG AA passes).

Color values

HEX	#644EF7
RGB	rgb(100, 78, 247)
HSL	hsl(248, 91%, 64%)
HSV	hsv(248, 68%, 97%)
CMYK	cmyk(59.5%, 68.4%, 0%, 3.1%)
CIE-LAB	lab(45.46, 54.44, -81.42)
CIE-LCH	lch(45.46, 97.94, 303.77°)
OKLab	oklab(55.32% 0.046 -0.2346)
OKLCH	oklch(55.32% 0.239 281.1)
XYZ	xyz(24.7631, 14.8717, 89.5433)
Luminance	0.1487 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644EF7 #E1F74E

analogous

#4E8CF7 #644EF7 #B84EF7

triadic

#644EF7 #F7644E #4EF764

tetradic

#644EF7 #F74E8C #E1F74E #4EF7B8

square

#644EF7 #F74E8C #E1F74E #4EF7B8

split-complementary

#644EF7 #F7B84E #8CF74E

monochromatic

#2109C2 #3113F4 #644EF7 #9789FA #CBC3FC

Accessibility & contrast

On white

5.28

#644EF7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.97

#644EF7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644EF7

5.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644EF7	#FFFFFF	#000000	##FFFFFF
##644EF7	1.00	5.28	3.97	5.28
#FFFFFF	5.28	1.00	21.00	1.00
#000000	3.97	21.00	1.00	21.00
##FFFFFF	5.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0072FC

Deuteranopia (green-blind)

#0065F4

Tritanopia (blue-blind)

#007B9D

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #644ef7;
/* rgb */ color: rgb(100, 78, 247);
/* oklch */ color: oklch(55.3% 0.239 281.1);

Tailwind

colors: {
  custom: {
    50: '#9f82fb',
    500: '#644ef7',
    950: '#000000',
  },
}

SCSS

$custom: #644ef7;
$custom-light: #9f82fb;
$custom-dark: #000000;

JSON

{
  "hex": "#644ef7",
  "rgb": {
    "r": 100,
    "g": 78,
    "b": 247
  },
  "hsl": {
    "h": 247.811,
    "s": 91.351,
    "l": 63.725
  },
  "oklch": {
    "l": 0.55319,
    "c": 0.23909,
    "h": 281.1
  },
  "luminance": 0.14874
}

Semantic roles & 50–950 ramp

primary

#644EF7

secondary

#E6EEB3

accent

#E600C8

background

#FAF8FF

surface

#F4EFFF

border

#CECAD7

text

#100A18

muted

#7F7C86

Preview Lab

Preview with #644EF7

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

Preview Lab → · Contrast checker → · Palette generator →