#64639B#64639B

#64639B is a mid, moderate blue. Relative luminance 0.140; OKLCH L 52.5% C 0.087 H 283.8°. Best body text is #FFFFFF at 5.53:1 contrast (WCAG AA passes).

Color values

HEX	#64639B
RGB	rgb(100, 99, 155)
HSL	hsl(241, 22%, 50%)
HSV	hsv(241, 36%, 61%)
CMYK	cmyk(35.5%, 36.1%, 0%, 39.2%)
CIE-LAB	lab(44.23, 14.33, -30.34)
CIE-LCH	lch(44.23, 33.55, 295.28°)
OKLab	oklab(52.47% 0.0208 -0.0848)
OKLCH	oklch(52.47% 0.087 283.8)
XYZ	xyz(15.6321, 13.9991, 32.8825)
Luminance	0.1400 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64639B #9A9B63

analogous

#637E9B #64639B #80639B

triadic

#64639B #9B6463 #639B64

tetradic

#64639B #9B637E #9A9B63 #639B80

square

#64639B #9B637E #9A9B63 #639B80

split-complementary

#64639B #9B8063 #7E9B63

monochromatic

#343350 #4C4B76 #64639B #8988B3 #AEADCB

Accessibility & contrast

On white

5.53

#64639B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.80

#64639B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #64639B

5.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64639B	#FFFFFF	#000000	##FFFFFF
##64639B	1.00	5.53	3.80	5.53
#FFFFFF	5.53	1.00	21.00	1.00
#000000	3.80	21.00	1.00	21.00
##FFFFFF	5.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#526A9D

Deuteranopia (green-blind)

#50679A

Tritanopia (blue-blind)

#556E78

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #64639b;
/* rgb */ color: rgb(100, 99, 155);
/* oklch */ color: oklch(52.5% 0.087 283.8);

Tailwind

colors: {
  custom: {
    50: '#928fb8',
    500: '#64639b',
    950: '#000000',
  },
}

SCSS

$custom: #64639b;
$custom-light: #928fb8;
$custom-dark: #000000;

JSON

{
  "hex": "#64639b",
  "rgb": {
    "r": 100,
    "g": 99,
    "b": 155
  },
  "hsl": {
    "h": 241.071,
    "s": 22.047,
    "l": 49.804
  },
  "oklch": {
    "l": 0.52471,
    "c": 0.08732,
    "h": 283.8
  },
  "luminance": 0.14
}

Semantic roles & 50–950 ramp

primary

#64639B

secondary

#B9BAA0

accent

#BF69BD

background

#F9F8FB

surface

#F1F0F6

border

#CBCBD0

text

#0D0C11

muted

#7E7D80

Preview Lab

Preview with #64639B

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

Preview Lab → · Contrast checker → · Palette generator →