#646CE1#646CE1

#646CE1 is a mid, vivid blue. Relative luminance 0.189; OKLCH L 58.5% C 0.175 H 276.6°. Best body text is #000000 at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#646CE1
RGB	rgb(100, 108, 225)
HSL	hsl(236, 68%, 64%)
HSV	hsv(236, 56%, 88%)
CMYK	cmyk(55.6%, 52%, 0%, 11.8%)
CIE-LAB	lab(50.53, 30.14, -60.80)
CIE-LCH	lch(50.53, 67.86, 296.37°)
OKLab	oklab(58.54% 0.0201 -0.1739)
OKLCH	oklch(58.54% 0.175 276.6)
XYZ	xyz(24.2044, 18.8690, 73.5862)
Luminance	0.1887 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646CE1 #E1D964

analogous

#64AAE1 #646CE1 #9A64E1

triadic

#646CE1 #E1646C #6CE164

tetradic

#646CE1 #E164AA #E1D964 #64E19A

square

#646CE1 #E164AA #E1D964 #64E19A

split-complementary

#646CE1 #E19A64 #AAE164

monochromatic

#212AAA #313BD7 #646CE1 #979DEB #CBCDF5

Accessibility & contrast

On white

4.40

#646CE1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.77

#646CE1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646CE1

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646CE1	#FFFFFF	#000000	##000000
##646CE1	1.00	4.40	4.77	4.77
#FFFFFF	4.40	1.00	21.00	21.00
#000000	4.77	21.00	1.00	1.00
##000000	4.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A7EE5

Deuteranopia (green-blind)

#0E73DF

Tritanopia (blue-blind)

#1F879C

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #646ce1;
/* rgb */ color: rgb(100, 108, 225);
/* oklch */ color: oklch(58.5% 0.175 276.6);

Tailwind

colors: {
  custom: {
    50: '#9a96eb',
    500: '#646ce1',
    950: '#000000',
  },
}

SCSS

$custom: #646ce1;
$custom-light: #9a96eb;
$custom-dark: #000000;

JSON

{
  "hex": "#646ce1",
  "rgb": {
    "r": 100,
    "g": 108,
    "b": 225
  },
  "hsl": {
    "h": 236.16,
    "s": 67.568,
    "l": 63.725
  },
  "oklch": {
    "l": 0.58536,
    "c": 0.17507,
    "h": 276.6
  },
  "luminance": 0.18871
}

Semantic roles & 50–950 ramp

primary

#646CE1

secondary

#E6E4BA

accent

#C416CF

background

#FAF9FE

surface

#F3F1FD

border

#CDCBD5

text

#0F0D16

muted

#7F7E84

Preview Lab

Preview with #646CE1

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

Preview Lab → · Contrast checker → · Palette generator →