#644BF1#644BF1

#644BF1 is a mid, highly saturated blue. Relative luminance 0.141; OKLCH L 54.4% C 0.235 H 282.1°. Best body text is #FFFFFF at 5.50:1 contrast (WCAG AA passes).

Color values

HEX	#644BF1
RGB	rgb(100, 75, 241)
HSL	hsl(249, 86%, 62%)
HSV	hsv(249, 69%, 95%)
CMYK	cmyk(58.5%, 68.9%, 0%, 5.5%)
CIE-LAB	lab(44.36, 54.27, -79.85)
CIE-LCH	lch(44.36, 96.55, 304.21°)
OKLab	oklab(54.38% 0.0492 -0.23)
OKLCH	oklch(54.38% 0.235 282.1)
XYZ	xyz(23.6438, 14.0907, 84.6759)
Luminance	0.1409 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644BF1 #D8F14B

analogous

#4B85F1 #644BF1 #B74BF1

triadic

#644BF1 #F1644B #4BF164

tetradic

#644BF1 #F14B85 #D8F14B #4BF1B7

square

#644BF1 #F14B85 #D8F14B #4BF1B7

split-complementary

#644BF1 #F1B74B #85F14B

monochromatic

#270EB4 #3312EC #644BF1 #9584F5 #C6BDFA

Accessibility & contrast

On white

5.50

#644BF1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.82

#644BF1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644BF1

5.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644BF1	#FFFFFF	#000000	##FFFFFF
##644BF1	1.00	5.50	3.82	5.50
#FFFFFF	5.50	1.00	21.00	1.00
#000000	3.82	21.00	1.00	21.00
##FFFFFF	5.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006EF6

Deuteranopia (green-blind)

#0063EE

Tritanopia (blue-blind)

#007799

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #644bf1;
/* rgb */ color: rgb(100, 75, 241);
/* oklch */ color: oklch(54.4% 0.235 282.1);

Tailwind

colors: {
  custom: {
    50: '#9e80f7',
    500: '#644bf1',
    950: '#000000',
  },
}

SCSS

$custom: #644bf1;
$custom-light: #9e80f7;
$custom-dark: #000000;

JSON

{
  "hex": "#644bf1",
  "rgb": {
    "r": 100,
    "g": 75,
    "b": 241
  },
  "hsl": {
    "h": 249.036,
    "s": 85.567,
    "l": 61.961
  },
  "oklch": {
    "l": 0.54379,
    "c": 0.23523,
    "h": 282.1
  },
  "luminance": 0.14092
}

Semantic roles & 50–950 ramp

primary

#644BF1

secondary

#E1EBAD

accent

#E203C1

background

#FAF7FF

surface

#F4EEFF

border

#CEC9D7

text

#100A17

muted

#7F7C85

Preview Lab

Preview with #644BF1

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

Preview Lab → · Contrast checker → · Palette generator →