#646BAD#646BAD

#646BAD is a mid, moderate blue. Relative luminance 0.162; OKLCH L 55.1% C 0.103 H 277.9°. Best body text is #FFFFFF at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#646BAD
RGB	rgb(100, 107, 173)
HSL	hsl(234, 31%, 54%)
HSV	hsv(234, 42%, 68%)
CMYK	cmyk(42.2%, 38.2%, 0%, 32.2%)
CIE-LAB	lab(47.29, 14.62, -36.13)
CIE-LCH	lch(47.29, 38.98, 292.03°)
OKLab	oklab(55.11% 0.014 -0.1016)
OKLCH	oklch(55.11% 0.103 277.9)
XYZ	xyz(18.0538, 16.2410, 41.7106)
Luminance	0.1624 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646BAD #ADA664

analogous

#648FAD #646BAD #8164AD

triadic

#646BAD #AD646B #6BAD64

tetradic

#646BAD #AD648F #ADA664 #64AD81

square

#646BAD #AD648F #ADA664 #64AD81

split-complementary

#646BAD #AD8164 #8FAD64

monochromatic

#343962 #49508B #646BAD #8C91C2 #B4B7D7

Accessibility & contrast

On white

4.94

#646BAD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.25

#646BAD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646BAD

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646BAD	#FFFFFF	#000000	##FFFFFF
##646BAD	1.00	4.94	4.25	4.94
#FFFFFF	4.94	1.00	21.00	1.00
#000000	4.25	21.00	1.00	21.00
##FFFFFF	4.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5473B0

Deuteranopia (green-blind)

#4F6DAB

Tritanopia (blue-blind)

#4D7884

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #646bad;
/* rgb */ color: rgb(100, 107, 173);
/* oklch */ color: oklch(55.1% 0.103 277.9);

Tailwind

colors: {
  custom: {
    50: '#9395c6',
    500: '#646bad',
    950: '#000000',
  },
}

SCSS

$custom: #646bad;
$custom-light: #9395c6;
$custom-dark: #000000;

JSON

{
  "hex": "#646bad",
  "rgb": {
    "r": 100,
    "g": 107,
    "b": 173
  },
  "hsl": {
    "h": 234.247,
    "s": 30.802,
    "l": 53.529
  },
  "oklch": {
    "l": 0.55108,
    "c": 0.1026,
    "h": 277.9
  },
  "luminance": 0.16242
}

Semantic roles & 50–950 ramp

primary

#646BAD

secondary

#C6C3A7

accent

#BD61C7

background

#F9F9FC

surface

#F2F1F8

border

#CCCBD1

text

#0D0D13

muted

#7E7E82

Preview Lab

Preview with #646BAD

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

Preview Lab → · Contrast checker → · Palette generator →