#646CE6#646CE6

#646CE6 is a mid, vivid blue. Relative luminance 0.191; OKLCH L 58.9% C 0.182 H 276.4°. Best body text is #000000 at 4.83:1 contrast (WCAG AA passes).

Color values

HEX	#646CE6
RGB	rgb(100, 108, 230)
HSL	hsl(236, 72%, 65%)
HSV	hsv(236, 57%, 90%)
CMYK	cmyk(56.5%, 53%, 0%, 9.8%)
CIE-LAB	lab(50.86, 31.74, -63.09)
CIE-LCH	lch(50.86, 70.63, 296.70°)
OKLab	oklab(58.88% 0.0204 -0.1807)
OKLCH	oklch(58.88% 0.182 276.4)
XYZ	xyz(24.8964, 19.1459, 77.2312)
Luminance	0.1915 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646CE6 #E6DE64

analogous

#64ADE6 #646CE6 #9D64E6

triadic

#646CE6 #E6646C #6CE664

tetradic

#646CE6 #E664AD #E6DE64 #64E69D

square

#646CE6 #E664AD #E6DE64 #64E69D

split-complementary

#646CE6 #E69D64 #ADE664

monochromatic

#1D26B3 #2F3ADD #646CE6 #999EEE #CDD0F7

Accessibility & contrast

On white

4.35

#646CE6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.83

#646CE6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646CE6

4.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646CE6	#FFFFFF	#000000	##000000
##646CE6	1.00	4.35	4.83	4.83
#FFFFFF	4.35	1.00	21.00	21.00
#000000	4.83	21.00	1.00	1.00
##000000	4.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#217FEA

Deuteranopia (green-blind)

#0074E3

Tritanopia (blue-blind)

#14889F

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #646ce6;
/* rgb */ color: rgb(100, 108, 230);
/* oklch */ color: oklch(58.9% 0.182 276.4);

Tailwind

colors: {
  custom: {
    50: '#9a96ef',
    500: '#646ce6',
    950: '#000000',
  },
}

SCSS

$custom: #646ce6;
$custom-light: #9a96ef;
$custom-dark: #000000;

JSON

{
  "hex": "#646ce6",
  "rgb": {
    "r": 100,
    "g": 108,
    "b": 230
  },
  "hsl": {
    "h": 236.308,
    "s": 72.222,
    "l": 64.706
  },
  "oklch": {
    "l": 0.58882,
    "c": 0.18181,
    "h": 276.4
  },
  "luminance": 0.19148
}

Semantic roles & 50–950 ramp

primary

#646CE6

secondary

#E9E6BD

accent

#C811D4

background

#FAF9FE

surface

#F3F1FD

border

#CDCBD5

text

#0F0D16

muted

#7F7E84

Preview Lab

Preview with #646CE6

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

Preview Lab → · Contrast checker → · Palette generator →