#646CE0#646CE0

#646CE0 is a mid, vivid blue. Relative luminance 0.188; OKLCH L 58.5% C 0.174 H 276.6°. Best body text is #000000 at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#646CE0
RGB	rgb(100, 108, 224)
HSL	hsl(236, 67%, 64%)
HSV	hsv(236, 55%, 88%)
CMYK	cmyk(55.4%, 51.8%, 0%, 12.2%)
CIE-LAB	lab(50.47, 29.82, -60.34)
CIE-LCH	lch(50.47, 67.31, 296.30°)
OKLab	oklab(58.47% 0.02 -0.1726)
OKLCH	oklch(58.47% 0.174 276.6)
XYZ	xyz(24.0683, 18.8146, 72.8699)
Luminance	0.1882 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646CE0 #E0D864

analogous

#64AAE0 #646CE0 #9A64E0

triadic

#646CE0 #E0646C #6CE064

tetradic

#646CE0 #E064AA #E0D864 #64E09A

square

#646CE0 #E064AA #E0D864 #64E09A

split-complementary

#646CE0 #E09A64 #AAE064

monochromatic

#222AA8 #313CD6 #646CE0 #979CEA #CACDF4

Accessibility & contrast

On white

4.41

#646CE0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.76

#646CE0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646CE0

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646CE0	#FFFFFF	#000000	##000000
##646CE0	1.00	4.41	4.76	4.76
#FFFFFF	4.41	1.00	21.00	21.00
#000000	4.76	21.00	1.00	1.00
##000000	4.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B7DE4

Deuteranopia (green-blind)

#1273DE

Tritanopia (blue-blind)

#21869C

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #646ce0;
/* rgb */ color: rgb(100, 108, 224);
/* oklch */ color: oklch(58.5% 0.174 276.6);

Tailwind

colors: {
  custom: {
    50: '#9996ea',
    500: '#646ce0',
    950: '#000000',
  },
}

SCSS

$custom: #646ce0;
$custom-light: #9996ea;
$custom-dark: #000000;

JSON

{
  "hex": "#646ce0",
  "rgb": {
    "r": 100,
    "g": 108,
    "b": 224
  },
  "hsl": {
    "h": 236.129,
    "s": 66.667,
    "l": 63.529
  },
  "oklch": {
    "l": 0.58467,
    "c": 0.17372,
    "h": 276.6
  },
  "luminance": 0.18816
}

Semantic roles & 50–950 ramp

primary

#646CE0

secondary

#E6E3BA

accent

#C317CF

background

#FAF9FE

surface

#F3F1FD

border

#CDCBD5

text

#0F0D16

muted

#7F7E84

Preview Lab

Preview with #646CE0

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

Preview Lab → · Contrast checker → · Palette generator →