#646BE0#646BE0

#646BE0 is a mid, vivid blue. Relative luminance 0.186; OKLCH L 58.3% C 0.175 H 276.9°. Best body text is #000000 at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#646BE0
RGB	rgb(100, 107, 224)
HSL	hsl(237, 67%, 64%)
HSV	hsv(237, 55%, 88%)
CMYK	cmyk(55.4%, 52.2%, 0%, 12.2%)
CIE-LAB	lab(50.22, 30.43, -60.74)
CIE-LCH	lch(50.22, 67.93, 296.61°)
OKLab	oklab(58.28% 0.0211 -0.1737)
OKLCH	oklch(58.28% 0.175 276.9)
XYZ	xyz(23.9635, 18.6049, 72.8349)
Luminance	0.1861 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646BE0 #E0D964

analogous

#64A9E0 #646BE0 #9B64E0

triadic

#646BE0 #E0646B #6BE064

tetradic

#646BE0 #E064A9 #E0D964 #64E09B

square

#646BE0 #E064A9 #E0D964 #64E09B

split-complementary

#646BE0 #E09B64 #A9E064

monochromatic

#2229A8 #313AD6 #646BE0 #979CEA #CACCF4

Accessibility & contrast

On white

4.45

#646BE0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.72

#646BE0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646BE0

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646BE0	#FFFFFF	#000000	##000000
##646BE0	1.00	4.45	4.72	4.72
#FFFFFF	4.45	1.00	21.00	21.00
#000000	4.72	21.00	1.00	1.00
##000000	4.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#287DE4

Deuteranopia (green-blind)

#0B73DE

Tritanopia (blue-blind)

#21869B

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #646be0;
/* rgb */ color: rgb(100, 107, 224);
/* oklch */ color: oklch(58.3% 0.175 276.9);

Tailwind

colors: {
  custom: {
    50: '#9a95ea',
    500: '#646be0',
    950: '#000000',
  },
}

SCSS

$custom: #646be0;
$custom-light: #9a95ea;
$custom-dark: #000000;

JSON

{
  "hex": "#646be0",
  "rgb": {
    "r": 100,
    "g": 107,
    "b": 224
  },
  "hsl": {
    "h": 236.613,
    "s": 66.667,
    "l": 63.529
  },
  "oklch": {
    "l": 0.58281,
    "c": 0.17502,
    "h": 276.9
  },
  "luminance": 0.18607
}

Semantic roles & 50–950 ramp

primary

#646BE0

secondary

#E6E3BA

accent

#C417CF

background

#FAF9FE

surface

#F3F1FD

border

#CDCBD5

text

#0F0D16

muted

#7F7E84

Preview Lab

Preview with #646BE0

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

Preview Lab → · Contrast checker → · Palette generator →