#646FC2#646FC2

#646FC2 is a mid, vivid blue. Relative luminance 0.180; OKLCH L 57.1% C 0.128 H 275.9°. Best body text is #000000 at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#646FC2
RGB	rgb(100, 111, 194)
HSL	hsl(233, 44%, 58%)
HSV	hsv(233, 48%, 76%)
CMYK	cmyk(48.5%, 42.8%, 0%, 23.9%)
CIE-LAB	lab(49.46, 18.54, -44.86)
CIE-LCH	lch(49.46, 48.54, 292.45°)
OKLab	oklab(57.13% 0.0131 -0.1271)
OKLCH	oklch(57.13% 0.128 275.9)
XYZ	xyz(20.6745, 17.9721, 53.4080)
Luminance	0.1797 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646FC2 #C2B764

analogous

#649EC2 #646FC2 #8864C2

triadic

#646FC2 #C2646F #6FC264

tetradic

#646FC2 #C2649E #C2B764 #64C288

square

#646FC2 #C2649E #C2B764 #64C288

split-complementary

#646FC2 #C28864 #9EC264

monochromatic

#30397B #424EA7 #646FC2 #9098D3 #BCC1E5

Accessibility & contrast

On white

4.57

#646FC2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.59

#646FC2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646FC2

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646FC2	#FFFFFF	#000000	##000000
##646FC2	1.00	4.57	4.59	4.59
#FFFFFF	4.57	1.00	21.00	21.00
#000000	4.59	21.00	1.00	1.00
##000000	4.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E7AC5

Deuteranopia (green-blind)

#4672C0

Tritanopia (blue-blind)

#40808F

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #646fc2;
/* rgb */ color: rgb(100, 111, 194);
/* oklch */ color: oklch(57.1% 0.128 275.9);

Tailwind

colors: {
  custom: {
    50: '#9598d5',
    500: '#646fc2',
    950: '#000000',
  },
}

SCSS

$custom: #646fc2;
$custom-light: #9598d5;
$custom-dark: #000000;

JSON

{
  "hex": "#646fc2",
  "rgb": {
    "r": 100,
    "g": 111,
    "b": 194
  },
  "hsl": {
    "h": 232.979,
    "s": 43.519,
    "l": 57.647
  },
  "oklch": {
    "l": 0.57131,
    "c": 0.12776,
    "h": 275.9
  },
  "luminance": 0.17973
}

Semantic roles & 50–950 ramp

primary

#646FC2

secondary

#D4CFAE

accent

#C455D3

background

#F9F9FD

surface

#F2F2FA

border

#CCCCD3

text

#0E0D14

muted

#7E7E83

Preview Lab

Preview with #646FC2

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

Preview Lab → · Contrast checker → · Palette generator →