#646CD5#646CD5

#646CD5 is a mid, vivid blue. Relative luminance 0.182; OKLCH L 57.7% C 0.159 H 276.9°. Best body text is #000000 at 4.65:1 contrast (WCAG AA passes).

Color values

HEX	#646CD5
RGB	rgb(100, 108, 213)
HSL	hsl(236, 57%, 61%)
HSV	hsv(236, 53%, 84%)
CMYK	cmyk(53.1%, 49.3%, 0%, 16.5%)
CIE-LAB	lab(49.78, 26.33, -55.21)
CIE-LCH	lch(49.78, 61.17, 295.49°)
OKLab	oklab(57.73% 0.0192 -0.1575)
OKLCH	oklch(57.73% 0.159 276.9)
XYZ	xyz(22.6245, 18.2371, 65.2658)
Luminance	0.1824 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646CD5 #D5CD64

analogous

#64A5D5 #646CD5 #9564D5

triadic

#646CD5 #D5646C #6CD564

tetradic

#646CD5 #D564A5 #D5CD64 #64D595

square

#646CD5 #D564A5 #D5CD64 #64D595

split-complementary

#646CD5 #D59564 #A5D564

monochromatic

#293096 #3640C6 #646CD5 #949AE2 #C4C7EF

Accessibility & contrast

On white

4.52

#646CD5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.65

#646CD5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646CD5

4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646CD5	#FFFFFF	#000000	##000000
##646CD5	1.00	4.52	4.65	4.65
#FFFFFF	4.52	1.00	21.00	21.00
#000000	4.65	21.00	1.00	1.00
##000000	4.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#397BD9

Deuteranopia (green-blind)

#2B72D3

Tritanopia (blue-blind)

#308396

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #646cd5;
/* rgb */ color: rgb(100, 108, 213);
/* oklch */ color: oklch(57.7% 0.159 276.9);

Tailwind

colors: {
  custom: {
    50: '#9896e2',
    500: '#646cd5',
    950: '#000000',
  },
}

SCSS

$custom: #646cd5;
$custom-light: #9896e2;
$custom-dark: #000000;

JSON

{
  "hex": "#646cd5",
  "rgb": {
    "r": 100,
    "g": 108,
    "b": 213
  },
  "hsl": {
    "h": 235.752,
    "s": 57.36,
    "l": 61.373
  },
  "oklch": {
    "l": 0.5773,
    "c": 0.15864,
    "h": 276.9
  },
  "luminance": 0.18239
}

Semantic roles & 50–950 ramp

primary

#646CD5

secondary

#E0DDB5

accent

#B921C5

background

#F9F9FD

surface

#F2F1FB

border

#CCCBD4

text

#0E0D15

muted

#7E7E83

Preview Lab

Preview with #646CD5

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

Preview Lab → · Contrast checker → · Palette generator →