#646BE6#646BE6

#646BE6 is a mid, vivid blue. Relative luminance 0.189; OKLCH L 58.7% C 0.183 H 276.7°. Best body text is #000000 at 4.79:1 contrast (WCAG AA passes).

Color values

HEX	#646BE6
RGB	rgb(100, 107, 230)
HSL	hsl(237, 72%, 65%)
HSV	hsv(237, 57%, 90%)
CMYK	cmyk(56.5%, 53.5%, 0%, 9.8%)
CIE-LAB	lab(50.61, 32.34, -63.49)
CIE-LCH	lch(50.61, 71.25, 297.00°)
OKLab	oklab(58.7% 0.0214 -0.1818)
OKLCH	oklch(58.7% 0.183 276.7)
XYZ	xyz(24.7916, 18.9361, 77.1962)
Luminance	0.1894 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646BE6 #E6DF64

analogous

#64ACE6 #646BE6 #9E64E6

triadic

#646BE6 #E6646B #6BE664

tetradic

#646BE6 #E664AC #E6DF64 #64E69E

square

#646BE6 #E664AC #E6DF64 #64E69E

split-complementary

#646BE6 #E69E64 #ACE664

monochromatic

#1D25B3 #2F39DD #646BE6 #999DEE #CDD0F7

Accessibility & contrast

On white

4.39

#646BE6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.79

#646BE6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646BE6

4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646BE6	#FFFFFF	#000000	##000000
##646BE6	1.00	4.39	4.79	4.79
#FFFFFF	4.39	1.00	21.00	21.00
#000000	4.79	21.00	1.00	1.00
##000000	4.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D7EEA

Deuteranopia (green-blind)

#0073E3

Tritanopia (blue-blind)

#15879E

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #646be6;
/* rgb */ color: rgb(100, 107, 230);
/* oklch */ color: oklch(58.7% 0.183 276.7);

Tailwind

colors: {
  custom: {
    50: '#9a95ef',
    500: '#646be6',
    950: '#000000',
  },
}

SCSS

$custom: #646be6;
$custom-light: #9a95ef;
$custom-dark: #000000;

JSON

{
  "hex": "#646be6",
  "rgb": {
    "r": 100,
    "g": 107,
    "b": 230
  },
  "hsl": {
    "h": 236.769,
    "s": 72.222,
    "l": 64.706
  },
  "oklch": {
    "l": 0.58699,
    "c": 0.18309,
    "h": 276.7
  },
  "luminance": 0.18938
}

Semantic roles & 50–950 ramp

primary

#646BE6

secondary

#E9E7BD

accent

#CA11D4

background

#FAF9FE

surface

#F3F1FD

border

#CDCBD5

text

#0F0D16

muted

#7F7E84

Preview Lab

Preview with #646BE6

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

Preview Lab → · Contrast checker → · Palette generator →