#646AE4#646AE4

#646AE4 is a mid, vivid blue. Relative luminance 0.186; OKLCH L 58.4% C 0.182 H 277.1°. Best body text is #000000 at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#646AE4
RGB	rgb(100, 106, 228)
HSL	hsl(237, 70%, 64%)
HSV	hsv(237, 56%, 89%)
CMYK	cmyk(56.1%, 53.5%, 0%, 10.6%)
CIE-LAB	lab(50.24, 32.31, -62.97)
CIE-LCH	lch(50.24, 70.78, 297.16°)
OKLab	oklab(58.38% 0.0223 -0.1803)
OKLCH	oklch(58.38% 0.182 277.1)
XYZ	xyz(24.4087, 18.6171, 75.6910)
Luminance	0.1862 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646AE4 #E4DE64

analogous

#64AAE4 #646AE4 #9E64E4

triadic

#646AE4 #E4646A #6AE464

tetradic

#646AE4 #E464AA #E4DE64 #64E49E

square

#646AE4 #E464AA #E4DE64 #64E49E

split-complementary

#646AE4 #E49E64 #AAE464

monochromatic

#1F25AF #3038DB #646AE4 #989CED #CCCEF6

Accessibility & contrast

On white

4.45

#646AE4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.72

#646AE4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646AE4

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646AE4	#FFFFFF	#000000	##000000
##646AE4	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)

#1D7DE8

Deuteranopia (green-blind)

#0072E1

Tritanopia (blue-blind)

#1A869D

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #646ae4;
/* rgb */ color: rgb(100, 106, 228);
/* oklch */ color: oklch(58.4% 0.182 277.1);

Tailwind

colors: {
  custom: {
    50: '#9a94ed',
    500: '#646ae4',
    950: '#000000',
  },
}

SCSS

$custom: #646ae4;
$custom-light: #9a94ed;
$custom-dark: #000000;

JSON

{
  "hex": "#646ae4",
  "rgb": {
    "r": 100,
    "g": 106,
    "b": 228
  },
  "hsl": {
    "h": 237.188,
    "s": 70.33,
    "l": 64.314
  },
  "oklch": {
    "l": 0.58375,
    "c": 0.1817,
    "h": 277.1
  },
  "luminance": 0.18619
}

Semantic roles & 50–950 ramp

primary

#646AE4

secondary

#E8E6BC

accent

#C913D2

background

#FAF9FE

surface

#F3F1FD

border

#CDCBD5

text

#0F0D16

muted

#7F7E84

Preview Lab

Preview with #646AE4

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

Preview Lab → · Contrast checker → · Palette generator →