#646CD8#646CD8

#646CD8 is a mid, vivid blue. Relative luminance 0.184; OKLCH L 57.9% C 0.163 H 276.9°. Best body text is #000000 at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#646CD8
RGB	rgb(100, 108, 216)
HSL	hsl(236, 60%, 62%)
HSV	hsv(236, 54%, 85%)
CMYK	cmyk(53.7%, 50%, 0%, 15.3%)
CIE-LAB	lab(49.97, 27.28, -56.62)
CIE-LCH	lch(49.97, 62.85, 295.72°)
OKLab	oklab(57.93% 0.0194 -0.1616)
OKLCH	oklch(57.93% 0.163 276.9)
XYZ	xyz(23.0088, 18.3908, 67.2898)
Luminance	0.1839 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646CD8 #D8D064

analogous

#64A6D8 #646CD8 #9664D8

triadic

#646CD8 #D8646C #6CD864

tetradic

#646CD8 #D864A6 #D8D064 #64D896

square

#646CD8 #D864A6 #D8D064 #64D896

split-complementary

#646CD8 #D89664 #A6D864

monochromatic

#272F9B #333ECC #646CD8 #959AE4 #C6C9F1

Accessibility & contrast

On white

4.49

#646CD8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.68

#646CD8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646CD8

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646CD8	#FFFFFF	#000000	##000000
##646CD8	1.00	4.49	4.68	4.68
#FFFFFF	4.49	1.00	21.00	21.00
#000000	4.68	21.00	1.00	1.00
##000000	4.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#367CDC

Deuteranopia (green-blind)

#2672D6

Tritanopia (blue-blind)

#2D8498

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #646cd8;
/* rgb */ color: rgb(100, 108, 216);
/* oklch */ color: oklch(57.9% 0.163 276.9);

Tailwind

colors: {
  custom: {
    50: '#9896e5',
    500: '#646cd8',
    950: '#000000',
  },
}

SCSS

$custom: #646cd8;
$custom-light: #9896e5;
$custom-dark: #000000;

JSON

{
  "hex": "#646cd8",
  "rgb": {
    "r": 100,
    "g": 108,
    "b": 216
  },
  "hsl": {
    "h": 235.862,
    "s": 59.794,
    "l": 61.961
  },
  "oklch": {
    "l": 0.57928,
    "c": 0.16278,
    "h": 276.9
  },
  "luminance": 0.18392
}

Semantic roles & 50–950 ramp

primary

#646CD8

secondary

#E1DEB7

accent

#BC1EC7

background

#F9F9FE

surface

#F2F1FC

border

#CCCBD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #646CD8

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

Preview Lab → · Contrast checker → · Palette generator →