#646CC2#646CC2

#646CC2 is a mid, vivid blue. Relative luminance 0.173; OKLCH L 56.5% C 0.132 H 277.3°. Best body text is #FFFFFF at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#646CC2
RGB	rgb(100, 108, 194)
HSL	hsl(235, 44%, 58%)
HSV	hsv(235, 48%, 76%)
CMYK	cmyk(48.5%, 44.3%, 0%, 23.9%)
CIE-LAB	lab(48.67, 20.38, -46.12)
CIE-LCH	lch(48.67, 50.42, 293.84°)
OKLab	oklab(56.53% 0.0167 -0.1308)
OKLCH	oklch(56.53% 0.132 277.3)
XYZ	xyz(20.3527, 17.3284, 53.3007)
Luminance	0.1733 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646CC2 #C2BA64

analogous

#649BC2 #646CC2 #8B64C2

triadic

#646CC2 #C2646C #6CC264

tetradic

#646CC2 #C2649B #C2BA64 #64C28B

square

#646CC2 #C2649B #C2BA64 #64C28B

split-complementary

#646CC2 #C28B64 #9BC264

monochromatic

#30377B #424AA7 #646CC2 #9096D3 #BCBFE5

Accessibility & contrast

On white

4.70

#646CC2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.47

#646CC2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646CC2

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646CC2	#FFFFFF	#000000	##FFFFFF
##646CC2	1.00	4.70	4.47	4.70
#FFFFFF	4.70	1.00	21.00	1.00
#000000	4.47	21.00	1.00	21.00
##FFFFFF	4.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4977C5

Deuteranopia (green-blind)

#4170C0

Tritanopia (blue-blind)

#407E8D

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #646cc2;
/* rgb */ color: rgb(100, 108, 194);
/* oklch */ color: oklch(56.5% 0.132 277.3);

Tailwind

colors: {
  custom: {
    50: '#9696d5',
    500: '#646cc2',
    950: '#000000',
  },
}

SCSS

$custom: #646cc2;
$custom-light: #9696d5;
$custom-dark: #000000;

JSON

{
  "hex": "#646cc2",
  "rgb": {
    "r": 100,
    "g": 108,
    "b": 194
  },
  "hsl": {
    "h": 234.894,
    "s": 43.519,
    "l": 57.647
  },
  "oklch": {
    "l": 0.56528,
    "c": 0.13187,
    "h": 277.3
  },
  "luminance": 0.17329
}

Semantic roles & 50–950 ramp

primary

#646CC2

secondary

#D4D1AE

accent

#C855D3

background

#F9F9FD

surface

#F2F1FA

border

#CCCBD3

text

#0E0D14

muted

#7E7E83

Preview Lab

Preview with #646CC2

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

Preview Lab → · Contrast checker → · Palette generator →