#644FCE#644FCE

#644FCE is a mid, vivid blue. Relative luminance 0.128; OKLCH L 52.1% C 0.188 H 285.4°. Best body text is #FFFFFF at 5.91:1 contrast (WCAG AA passes).

Color values

HEX	#644FCE
RGB	rgb(100, 79, 206)
HSL	hsl(250, 56%, 56%)
HSV	hsv(250, 62%, 81%)
CMYK	cmyk(51.5%, 61.7%, 0%, 19.2%)
CIE-LAB	lab(42.39, 41.62, -63.14)
CIE-LCH	lch(42.39, 75.62, 303.39°)
OKLab	oklab(52.09% 0.0499 -0.181)
OKLCH	oklch(52.09% 0.188 285.4)
XYZ	xyz(19.1888, 12.7565, 59.8317)
Luminance	0.1276 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#644FCE #B9CE4F

analogous

#4F79CE #644FCE #A34FCE

triadic

#644FCE #CE644F #4FCE64

tetradic

#644FCE #CE4F79 #B9CE4F #4FCEA3

square

#644FCE #CE4F79 #B9CE4F #4FCEA3

split-complementary

#644FCE #CEA34F #79CE4F

monochromatic

#33237F #4631AF #644FCE #8E7FDB #B8AFE9

Accessibility & contrast

On white

5.91

#644FCE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.55

#644FCE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #644FCE

5.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##644FCE	#FFFFFF	#000000	##FFFFFF
##644FCE	1.00	5.91	3.55	5.91
#FFFFFF	5.91	1.00	21.00	1.00
#000000	3.55	21.00	1.00	21.00
##FFFFFF	5.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068D2

Deuteranopia (green-blind)

#0060CB

Tritanopia (blue-blind)

#3B6D87

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #644fce;
/* rgb */ color: rgb(100, 79, 206);
/* oklch */ color: oklch(52.1% 0.188 285.4);

Tailwind

colors: {
  custom: {
    50: '#9981de',
    500: '#644fce',
    950: '#000000',
  },
}

SCSS

$custom: #644fce;
$custom-light: #9981de;
$custom-dark: #000000;

JSON

{
  "hex": "#644fce",
  "rgb": {
    "r": 100,
    "g": 79,
    "b": 206
  },
  "hsl": {
    "h": 249.921,
    "s": 56.444,
    "l": 55.882
  },
  "oklch": {
    "l": 0.52089,
    "c": 0.18772,
    "h": 285.4
  },
  "luminance": 0.12758
}

Semantic roles & 50–950 ramp

primary

#644FCE

secondary

#CED7A2

accent

#E048C7

background

#F9F7FD

surface

#F2EEFB

border

#CCC9D4

text

#0F0A15

muted

#7E7C83

Preview Lab

Preview with #644FCE

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

Preview Lab → · Contrast checker → · Palette generator →