#646AE1#646AE1

#646AE1 is a mid, vivid blue. Relative luminance 0.185; OKLCH L 58.2% C 0.178 H 277.2°. Best body text is #000000 at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#646AE1
RGB	rgb(100, 106, 225)
HSL	hsl(237, 68%, 64%)
HSV	hsv(237, 56%, 88%)
CMYK	cmyk(55.6%, 52.9%, 0%, 11.8%)
CIE-LAB	lab(50.04, 31.36, -61.60)
CIE-LCH	lch(50.04, 69.12, 296.98°)
OKLab	oklab(58.17% 0.0222 -0.1763)
OKLCH	oklch(58.17% 0.178 277.2)
XYZ	xyz(23.9958, 18.4520, 73.5167)
Luminance	0.1845 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646AE1 #E1DB64

analogous

#64A8E1 #646AE1 #9C64E1

triadic

#646AE1 #E1646A #6AE164

tetradic

#646AE1 #E164A8 #E1DB64 #64E19C

square

#646AE1 #E164A8 #E1DB64 #64E19C

split-complementary

#646AE1 #E19C64 #A8E164

monochromatic

#2127AA #3139D7 #646AE1 #979BEB #CBCDF5

Accessibility & contrast

On white

4.48

#646AE1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.69

#646AE1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646AE1

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646AE1	#FFFFFF	#000000	##000000
##646AE1	1.00	4.48	4.69	4.69
#FFFFFF	4.48	1.00	21.00	21.00
#000000	4.69	21.00	1.00	1.00
##000000	4.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#237CE5

Deuteranopia (green-blind)

#0072DF

Tritanopia (blue-blind)

#20859B

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #646ae1;
/* rgb */ color: rgb(100, 106, 225);
/* oklch */ color: oklch(58.2% 0.178 277.2);

Tailwind

colors: {
  custom: {
    50: '#9a94eb',
    500: '#646ae1',
    950: '#000000',
  },
}

SCSS

$custom: #646ae1;
$custom-light: #9a94eb;
$custom-dark: #000000;

JSON

{
  "hex": "#646ae1",
  "rgb": {
    "r": 100,
    "g": 106,
    "b": 225
  },
  "hsl": {
    "h": 237.12,
    "s": 67.568,
    "l": 63.725
  },
  "oklch": {
    "l": 0.58166,
    "c": 0.17766,
    "h": 277.2
  },
  "luminance": 0.18454
}

Semantic roles & 50–950 ramp

primary

#646AE1

secondary

#E6E4BA

accent

#C716CF

background

#FAF9FE

surface

#F3F1FD

border

#CDCBD5

text

#0F0D16

muted

#7F7E84

Preview Lab

Preview with #646AE1

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

Preview Lab → · Contrast checker → · Palette generator →