#646DC2#646DC2

#646DC2 is a mid, vivid blue. Relative luminance 0.175; OKLCH L 56.7% C 0.130 H 276.8°. Best body text is #FFFFFF at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#646DC2
RGB	rgb(100, 109, 194)
HSL	hsl(234, 44%, 58%)
HSV	hsv(234, 48%, 76%)
CMYK	cmyk(48.5%, 43.8%, 0%, 23.9%)
CIE-LAB	lab(48.93, 19.76, -45.70)
CIE-LCH	lch(48.93, 49.79, 293.39°)
OKLab	oklab(56.73% 0.0155 -0.1296)
OKLCH	oklch(56.73% 0.13 276.8)
XYZ	xyz(20.4588, 17.5405, 53.3361)
Luminance	0.1754 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646DC2 #C2B964

analogous

#649CC2 #646DC2 #8A64C2

triadic

#646DC2 #C2646D #6DC264

tetradic

#646DC2 #C2649C #C2B964 #64C28A

square

#646DC2 #C2649C #C2B964 #64C28A

split-complementary

#646DC2 #C28A64 #9CC264

monochromatic

#30387B #424BA7 #646DC2 #9096D3 #BCC0E5

Accessibility & contrast

On white

4.66

#646DC2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.51

#646DC2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #646DC2

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646DC2	#FFFFFF	#000000	##FFFFFF
##646DC2	1.00	4.66	4.51	4.66
#FFFFFF	4.66	1.00	21.00	1.00
#000000	4.51	21.00	1.00	21.00
##FFFFFF	4.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B78C5

Deuteranopia (green-blind)

#4371C0

Tritanopia (blue-blind)

#407F8E

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #646dc2;
/* rgb */ color: rgb(100, 109, 194);
/* oklch */ color: oklch(56.7% 0.130 276.8);

Tailwind

colors: {
  custom: {
    50: '#9596d5',
    500: '#646dc2',
    950: '#000000',
  },
}

SCSS

$custom: #646dc2;
$custom-light: #9596d5;
$custom-dark: #000000;

JSON

{
  "hex": "#646dc2",
  "rgb": {
    "r": 100,
    "g": 109,
    "b": 194
  },
  "hsl": {
    "h": 234.255,
    "s": 43.519,
    "l": 57.647
  },
  "oklch": {
    "l": 0.56729,
    "c": 0.13049,
    "h": 276.8
  },
  "luminance": 0.17542
}

Semantic roles & 50–950 ramp

primary

#646DC2

secondary

#D4D0AE

accent

#C755D3

background

#F9F9FD

surface

#F2F2FA

border

#CCCCD3

text

#0E0D14

muted

#7E7E83

Preview Lab

Preview with #646DC2

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

Preview Lab → · Contrast checker → · Palette generator →