#646DE0#646DE0

#646DE0 is a mid, vivid blue. Relative luminance 0.190; OKLCH L 58.7% C 0.172 H 276.3°. Best body text is #000000 at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#646DE0
RGB	rgb(100, 109, 224)
HSL	hsl(236, 67%, 64%)
HSV	hsv(236, 55%, 88%)
CMYK	cmyk(55.4%, 51.3%, 0%, 12.2%)
CIE-LAB	lab(50.72, 29.21, -59.94)
CIE-LCH	lch(50.72, 66.68, 295.98°)
OKLab	oklab(58.65% 0.019 -0.1714)
OKLCH	oklch(58.65% 0.172 276.3)
XYZ	xyz(24.1744, 19.0268, 72.9052)
Luminance	0.1903 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646DE0 #E0D764

analogous

#64ABE0 #646DE0 #9964E0

triadic

#646DE0 #E0646D #6DE064

tetradic

#646DE0 #E064AB #E0D764 #64E099

square

#646DE0 #E064AB #E0D764 #64E099

split-complementary

#646DE0 #E09964 #ABE064

monochromatic

#222BA8 #313DD6 #646DE0 #979DEA #CACDF4

Accessibility & contrast

On white

4.37

#646DE0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.81

#646DE0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646DE0

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646DE0	#FFFFFF	#000000	##000000
##646DE0	1.00	4.37	4.81	4.81
#FFFFFF	4.37	1.00	21.00	21.00
#000000	4.81	21.00	1.00	1.00
##000000	4.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E7EE4

Deuteranopia (green-blind)

#1774DE

Tritanopia (blue-blind)

#21879C

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #646de0;
/* rgb */ color: rgb(100, 109, 224);
/* oklch */ color: oklch(58.7% 0.172 276.3);

Tailwind

colors: {
  custom: {
    50: '#9996ea',
    500: '#646de0',
    950: '#000000',
  },
}

SCSS

$custom: #646de0;
$custom-light: #9996ea;
$custom-dark: #000000;

JSON

{
  "hex": "#646de0",
  "rgb": {
    "r": 100,
    "g": 109,
    "b": 224
  },
  "hsl": {
    "h": 235.645,
    "s": 66.667,
    "l": 63.529
  },
  "oklch": {
    "l": 0.58654,
    "c": 0.17242,
    "h": 276.3
  },
  "luminance": 0.19028
}

Semantic roles & 50–950 ramp

primary

#646DE0

secondary

#E6E3BA

accent

#C117CF

background

#FAF9FE

surface

#F3F2FD

border

#CDCCD5

text

#0F0D16

muted

#7F7E84

Preview Lab

Preview with #646DE0

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

Preview Lab → · Contrast checker → · Palette generator →