#646CA0#646CA0

#646CA0 is a mid, moderate blue. Relative luminance 0.160; OKLCH L 54.6% C 0.082 H 276.6°. Best body text is #FFFFFF at 5.01:1 contrast (WCAG AA passes).

Color values

HEX	#646CA0
RGB	rgb(100, 108, 160)
HSL	hsl(232, 24%, 51%)
HSV	hsv(232, 38%, 63%)
CMYK	cmyk(37.5%, 32.5%, 0%, 37.3%)
CIE-LAB	lab(46.94, 10.22, -29.06)
CIE-LCH	lch(46.94, 30.81, 289.37°)
OKLab	oklab(54.63% 0.0095 -0.0811)
OKLCH	oklch(54.63% 0.082 276.6)
XYZ	xyz(16.9614, 15.9718, 35.4401)
Luminance	0.1597 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646CA0 #A09864

analogous

#648AA0 #646CA0 #7A64A0

triadic

#646CA0 #A0646C #6CA064

tetradic

#646CA0 #A0648A #A09864 #64A07A

square

#646CA0 #A0648A #A09864 #64A07A

split-complementary

#646CA0 #A07A64 #8AA064

monochromatic

#343955 #4C527B #646CA0 #8A90B7 #B0B4CF

Accessibility & contrast

On white

5.01

#646CA0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.19

#646CA0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646CA0

5.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646CA0	#FFFFFF	#000000	##FFFFFF
##646CA0	1.00	5.01	4.19	5.01
#FFFFFF	5.01	1.00	21.00	1.00
#000000	4.19	21.00	1.00	21.00
##FFFFFF	5.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B72A2

Deuteranopia (green-blind)

#576D9F

Tritanopia (blue-blind)

#53767F

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #646ca0;
/* rgb */ color: rgb(100, 108, 160);
/* oklch */ color: oklch(54.6% 0.082 276.6);

Tailwind

colors: {
  custom: {
    50: '#9296bc',
    500: '#646ca0',
    950: '#000000',
  },
}

SCSS

$custom: #646ca0;
$custom-light: #9296bc;
$custom-dark: #000000;

JSON

{
  "hex": "#646ca0",
  "rgb": {
    "r": 100,
    "g": 108,
    "b": 160
  },
  "hsl": {
    "h": 232,
    "s": 24,
    "l": 50.98
  },
  "oklch": {
    "l": 0.54632,
    "c": 0.08168,
    "h": 276.6
  },
  "luminance": 0.15973
}

Semantic roles & 50–950 ramp

primary

#646CA0

secondary

#BDBAA3

accent

#B567C0

background

#F9F9FB

surface

#F1F1F6

border

#CBCBD0

text

#0D0D12

muted

#7E7E81

Preview Lab

Preview with #646CA0

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

Preview Lab → · Contrast checker → · Palette generator →