#644BEF#644BEF

#644BEF is a mid, highly saturated blue. Relative luminance 0.140; OKLCH L 54.2% C 0.233 H 282.3°. Best body text is #FFFFFF at 5.53:1 contrast (WCAG AA passes).

Color values

HEX	#644BEF
RGB	rgb(100, 75, 239)
HSL	hsl(249, 84%, 62%)
HSV	hsv(249, 69%, 94%)
CMYK	cmyk(58.2%, 68.6%, 0%, 6.3%)
CIE-LAB	lab(44.19, 53.69, -79.00)
CIE-LCH	lch(44.19, 95.52, 304.20°)
OKLab	oklab(54.21% 0.0495 -0.2275)
OKLCH	oklch(54.21% 0.233 282.3)
XYZ	xyz(23.3468, 13.9719, 83.1112)
Luminance	0.1397 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644BEF #D6EF4B

analogous

#4B84EF #644BEF #B64BEF

triadic

#644BEF #EF644B #4BEF64

tetradic

#644BEF #EF4B84 #D6EF4B #4BEFB6

square

#644BEF #EF4B84 #D6EF4B #4BEFB6

split-complementary

#644BEF #EFB64B #84EF4B

monochromatic

#2810B0 #3515E8 #644BEF #9483F4 #C5BBF9

Accessibility & contrast

On white

5.53

#644BEF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.79

#644BEF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644BEF

5.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644BEF	#FFFFFF	#000000	##FFFFFF
##644BEF	1.00	5.53	3.79	5.53
#FFFFFF	5.53	1.00	21.00	1.00
#000000	3.79	21.00	1.00	21.00
##FFFFFF	5.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006EF4

Deuteranopia (green-blind)

#0063EC

Tritanopia (blue-blind)

#017797

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #644bef;
/* rgb */ color: rgb(100, 75, 239);
/* oklch */ color: oklch(54.2% 0.233 282.3);

Tailwind

colors: {
  custom: {
    50: '#9e7ff5',
    500: '#644bef',
    950: '#000000',
  },
}

SCSS

$custom: #644bef;
$custom-light: #9e7ff5;
$custom-dark: #000000;

JSON

{
  "hex": "#644bef",
  "rgb": {
    "r": 100,
    "g": 75,
    "b": 239
  },
  "hsl": {
    "h": 249.146,
    "s": 83.673,
    "l": 61.569
  },
  "oklch": {
    "l": 0.54205,
    "c": 0.23287,
    "h": 282.3
  },
  "luminance": 0.13973
}

Semantic roles & 50–950 ramp

primary

#644BEF

secondary

#E0E9AC

accent

#E005BF

background

#FAF7FF

surface

#F4EEFF

border

#CEC9D7

text

#100A17

muted

#7F7C85

Preview Lab

Preview with #644BEF

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

Preview Lab → · Contrast checker → · Palette generator →