#646DE6#646DE6

#646DE6 is a mid, vivid blue. Relative luminance 0.194; OKLCH L 59.1% C 0.181 H 276.2°. Best body text is #000000 at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#646DE6
RGB	rgb(100, 109, 230)
HSL	hsl(236, 72%, 65%)
HSV	hsv(236, 57%, 90%)
CMYK	cmyk(56.5%, 52.6%, 0%, 9.8%)
CIE-LAB	lab(51.10, 31.13, -62.70)
CIE-LCH	lch(51.10, 70.00, 296.41°)
OKLab	oklab(59.07% 0.0194 -0.1795)
OKLCH	oklch(59.07% 0.181 276.2)
XYZ	xyz(25.0025, 19.3580, 77.2665)
Luminance	0.1936 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646DE6 #E6DD64

analogous

#64AEE6 #646DE6 #9C64E6

triadic

#646DE6 #E6646D #6DE664

tetradic

#646DE6 #E664AE #E6DD64 #64E69C

square

#646DE6 #E664AE #E6DD64 #64E69C

split-complementary

#646DE6 #E69C64 #AEE664

monochromatic

#1D27B3 #2F3BDD #646DE6 #999FEE #CDD0F7

Accessibility & contrast

On white

4.31

#646DE6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.87

#646DE6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646DE6

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646DE6	#FFFFFF	#000000	##000000
##646DE6	1.00	4.31	4.87	4.87
#FFFFFF	4.31	1.00	21.00	21.00
#000000	4.87	21.00	1.00	1.00
##000000	4.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#257FEA

Deuteranopia (green-blind)

#0074E3

Tritanopia (blue-blind)

#14899F

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #646de6;
/* rgb */ color: rgb(100, 109, 230);
/* oklch */ color: oklch(59.1% 0.181 276.2);

Tailwind

colors: {
  custom: {
    50: '#9a96ef',
    500: '#646de6',
    950: '#000000',
  },
}

SCSS

$custom: #646de6;
$custom-light: #9a96ef;
$custom-dark: #000000;

JSON

{
  "hex": "#646de6",
  "rgb": {
    "r": 100,
    "g": 109,
    "b": 230
  },
  "hsl": {
    "h": 235.846,
    "s": 72.222,
    "l": 64.706
  },
  "oklch": {
    "l": 0.59067,
    "c": 0.18053,
    "h": 276.2
  },
  "luminance": 0.1936
}

Semantic roles & 50–950 ramp

primary

#646DE6

secondary

#E9E6BD

accent

#C711D4

background

#FAF9FE

surface

#F3F2FD

border

#CDCCD5

text

#0F0D16

muted

#7F7E84

Preview Lab

Preview with #646DE6

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

Preview Lab → · Contrast checker → · Palette generator →