#646FE1#646FE1

#646FE1 is a mid, vivid blue. Relative luminance 0.195; OKLCH L 59.1% C 0.171 H 275.7°. Best body text is #000000 at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#646FE1
RGB	rgb(100, 111, 225)
HSL	hsl(235, 68%, 64%)
HSV	hsv(235, 56%, 88%)
CMYK	cmyk(55.6%, 50.7%, 0%, 11.8%)
CIE-LAB	lab(51.28, 28.32, -59.60)
CIE-LCH	lch(51.28, 65.98, 295.41°)
OKLab	oklab(59.1% 0.017 -0.1703)
OKLCH	oklch(59.1% 0.171 275.7)
XYZ	xyz(24.5262, 19.5127, 73.6935)
Luminance	0.1951 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646FE1 #E1D664

analogous

#64ADE1 #646FE1 #9764E1

triadic

#646FE1 #E1646F #6FE164

tetradic

#646FE1 #E164AD #E1D664 #64E197

square

#646FE1 #E164AD #E1D664 #64E197

split-complementary

#646FE1 #E19764 #ADE164

monochromatic

#212DAA #313FD7 #646FE1 #979FEB #CBCEF5

Accessibility & contrast

On white

4.28

#646FE1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.90

#646FE1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646FE1

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646FE1	#FFFFFF	#000000	##000000
##646FE1	1.00	4.28	4.90	4.90
#FFFFFF	4.28	1.00	21.00	21.00
#000000	4.90	21.00	1.00	1.00
##000000	4.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3280E5

Deuteranopia (green-blind)

#1D75DF

Tritanopia (blue-blind)

#1E899D

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #646fe1;
/* rgb */ color: rgb(100, 111, 225);
/* oklch */ color: oklch(59.1% 0.171 275.7);

Tailwind

colors: {
  custom: {
    50: '#9998eb',
    500: '#646fe1',
    950: '#000000',
  },
}

SCSS

$custom: #646fe1;
$custom-light: #9998eb;
$custom-dark: #000000;

JSON

{
  "hex": "#646fe1",
  "rgb": {
    "r": 100,
    "g": 111,
    "b": 225
  },
  "hsl": {
    "h": 234.72,
    "s": 67.568,
    "l": 63.725
  },
  "oklch": {
    "l": 0.59099,
    "c": 0.17119,
    "h": 275.7
  },
  "luminance": 0.19514
}

Semantic roles & 50–950 ramp

primary

#646FE1

secondary

#E6E3BA

accent

#BF16CF

background

#FAF9FE

surface

#F3F2FD

border

#CDCCD5

text

#0F0D16

muted

#7F7E84

Preview Lab

Preview with #646FE1

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

Preview Lab → · Contrast checker → · Palette generator →