#646AE7#646AE7

#646AE7 is a mid, vivid blue. Relative luminance 0.188; OKLCH L 58.6% C 0.186 H 276.9°. Best body text is #000000 at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#646AE7
RGB	rgb(100, 106, 231)
HSL	hsl(237, 73%, 65%)
HSV	hsv(237, 57%, 91%)
CMYK	cmyk(56.7%, 54.1%, 0%, 9.4%)
CIE-LAB	lab(50.43, 33.27, -64.34)
CIE-LCH	lch(50.43, 72.43, 297.34°)
OKLab	oklab(58.59% 0.0225 -0.1843)
OKLCH	oklch(58.59% 0.186 276.9)
XYZ	xyz(24.8287, 18.7852, 77.9033)
Luminance	0.1879 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646AE7 #E7E164

analogous

#64ABE7 #646AE7 #A064E7

triadic

#646AE7 #E7646A #6AE764

tetradic

#646AE7 #E764AB #E7E164 #64E7A0

square

#646AE7 #E764AB #E7E164 #64E7A0

split-complementary

#646AE7 #E7A064 #ABE764

monochromatic

#1C23B5 #2F37DF #646AE7 #999DEF #CED0F7

Accessibility & contrast

On white

4.41

#646AE7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.76

#646AE7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646AE7

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646AE7	#FFFFFF	#000000	##000000
##646AE7	1.00	4.41	4.76	4.76
#FFFFFF	4.41	1.00	21.00	21.00
#000000	4.76	21.00	1.00	1.00
##000000	4.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#157EEB

Deuteranopia (green-blind)

#0073E4

Tritanopia (blue-blind)

#12879E

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #646ae7;
/* rgb */ color: rgb(100, 106, 231);
/* oklch */ color: oklch(58.6% 0.186 276.9);

Tailwind

colors: {
  custom: {
    50: '#9b94ef',
    500: '#646ae7',
    950: '#000000',
  },
}

SCSS

$custom: #646ae7;
$custom-light: #9b94ef;
$custom-dark: #000000;

JSON

{
  "hex": "#646ae7",
  "rgb": {
    "r": 100,
    "g": 106,
    "b": 231
  },
  "hsl": {
    "h": 237.252,
    "s": 73.184,
    "l": 64.902
  },
  "oklch": {
    "l": 0.58587,
    "c": 0.1857,
    "h": 276.9
  },
  "luminance": 0.18787
}

Semantic roles & 50–950 ramp

primary

#646AE7

secondary

#EAE8BD

accent

#CC10D5

background

#FAF9FE

surface

#F4F1FD

border

#CECBD5

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #646AE7

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

Preview Lab → · Contrast checker → · Palette generator →