#646FE3#646FE3

#646FE3 is a mid, vivid blue. Relative luminance 0.196; OKLCH L 59.2% C 0.174 H 275.7°. Best body text is #000000 at 4.92:1 contrast (WCAG AA passes).

Color values

HEX	#646FE3
RGB	rgb(100, 111, 227)
HSL	hsl(235, 69%, 64%)
HSV	hsv(235, 56%, 89%)
CMYK	cmyk(55.9%, 51.1%, 0%, 11%)
CIE-LAB	lab(51.41, 28.95, -60.52)
CIE-LCH	lch(51.41, 67.09, 295.57°)
OKLab	oklab(59.23% 0.0172 -0.1731)
OKLCH	oklch(59.23% 0.174 275.7)
XYZ	xyz(24.8006, 19.6225, 75.1388)
Luminance	0.1962 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646FE3 #E3D864

analogous

#64AFE3 #646FE3 #9964E3

triadic

#646FE3 #E3646F #6FE364

tetradic

#646FE3 #E364AF #E3D864 #64E399

square

#646FE3 #E364AF #E3D864 #64E399

split-complementary

#646FE3 #E39964 #AFE364

monochromatic

#1F2CAD #303FDA #646FE3 #989FEC #CCCFF6

Accessibility & contrast

On white

4.26

#646FE3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.92

#646FE3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646FE3

4.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646FE3	#FFFFFF	#000000	##000000
##646FE3	1.00	4.26	4.92	4.92
#FFFFFF	4.26	1.00	21.00	21.00
#000000	4.92	21.00	1.00	1.00
##000000	4.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3080E7

Deuteranopia (green-blind)

#1775E1

Tritanopia (blue-blind)

#1A899E

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #646fe3;
/* rgb */ color: rgb(100, 111, 227);
/* oklch */ color: oklch(59.2% 0.174 275.7);

Tailwind

colors: {
  custom: {
    50: '#9a98ec',
    500: '#646fe3',
    950: '#000000',
  },
}

SCSS

$custom: #646fe3;
$custom-light: #9a98ec;
$custom-dark: #000000;

JSON

{
  "hex": "#646fe3",
  "rgb": {
    "r": 100,
    "g": 111,
    "b": 227
  },
  "hsl": {
    "h": 234.803,
    "s": 69.399,
    "l": 64.118
  },
  "oklch": {
    "l": 0.59234,
    "c": 0.17391,
    "h": 275.7
  },
  "luminance": 0.19624
}

Semantic roles & 50–950 ramp

primary

#646FE3

secondary

#E8E4BB

accent

#C114D1

background

#FAF9FE

surface

#F3F2FD

border

#CDCCD5

text

#0F0D16

muted

#7F7E84

Preview Lab

Preview with #646FE3

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

Preview Lab → · Contrast checker → · Palette generator →