#646EE1#646EE1

#646EE1 is a mid, vivid blue. Relative luminance 0.193; OKLCH L 58.9% C 0.172 H 276.0°. Best body text is #000000 at 4.86:1 contrast (WCAG AA passes).

Color values

HEX	#646EE1
RGB	rgb(100, 110, 225)
HSL	hsl(235, 68%, 64%)
HSV	hsv(235, 56%, 88%)
CMYK	cmyk(55.6%, 51.1%, 0%, 11.8%)
CIE-LAB	lab(51.03, 28.92, -60.00)
CIE-LCH	lch(51.03, 66.61, 295.74°)
OKLab	oklab(58.91% 0.018 -0.1715)
OKLCH	oklch(58.91% 0.172 276)
XYZ	xyz(24.4177, 19.2957, 73.6573)
Luminance	0.1930 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646EE1 #E1D764

analogous

#64ACE1 #646EE1 #9864E1

triadic

#646EE1 #E1646E #6EE164

tetradic

#646EE1 #E164AC #E1D764 #64E198

square

#646EE1 #E164AC #E1D764 #64E198

split-complementary

#646EE1 #E19864 #ACE164

monochromatic

#212CAA #313ED7 #646EE1 #979EEB #CBCEF5

Accessibility & contrast

On white

4.32

#646EE1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.86

#646EE1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646EE1

4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646EE1	#FFFFFF	#000000	##000000
##646EE1	1.00	4.32	4.86	4.86
#FFFFFF	4.32	1.00	21.00	21.00
#000000	4.86	21.00	1.00	1.00
##000000	4.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#307FE5

Deuteranopia (green-blind)

#1874DF

Tritanopia (blue-blind)

#1F889D

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #646ee1;
/* rgb */ color: rgb(100, 110, 225);
/* oklch */ color: oklch(58.9% 0.172 276.0);

Tailwind

colors: {
  custom: {
    50: '#9a97eb',
    500: '#646ee1',
    950: '#000000',
  },
}

SCSS

$custom: #646ee1;
$custom-light: #9a97eb;
$custom-dark: #000000;

JSON

{
  "hex": "#646ee1",
  "rgb": {
    "r": 100,
    "g": 110,
    "b": 225
  },
  "hsl": {
    "h": 235.2,
    "s": 67.568,
    "l": 63.725
  },
  "oklch": {
    "l": 0.5891,
    "c": 0.17249,
    "h": 276
  },
  "luminance": 0.19297
}

Semantic roles & 50–950 ramp

primary

#646EE1

secondary

#E6E3BA

accent

#C116CF

background

#FAF9FE

surface

#F3F2FD

border

#CDCCD5

text

#0F0D16

muted

#7F7E84

Preview Lab

Preview with #646EE1

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

Preview Lab → · Contrast checker → · Palette generator →