#646FE7#646FE7

#646FE7 is a mid, vivid blue. Relative luminance 0.198; OKLCH L 59.5% C 0.179 H 275.6°. Best body text is #000000 at 4.97:1 contrast (WCAG AA passes).

Color values

HEX	#646FE7
RGB	rgb(100, 111, 231)
HSL	hsl(235, 73%, 65%)
HSV	hsv(235, 57%, 91%)
CMYK	cmyk(56.7%, 51.9%, 0%, 9.4%)
CIE-LAB	lab(51.66, 30.24, -62.36)
CIE-LCH	lch(51.66, 69.30, 295.87°)
OKLab	oklab(59.51% 0.0174 -0.1785)
OKLCH	oklch(59.51% 0.179 275.6)
XYZ	xyz(25.3591, 19.8459, 78.0801)
Luminance	0.1985 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646FE7 #E7DC64

analogous

#64B0E7 #646FE7 #9B64E7

triadic

#646FE7 #E7646F #6FE764

tetradic

#646FE7 #E764B0 #E7DC64 #64E79B

square

#646FE7 #E764B0 #E7DC64 #64E79B

split-complementary

#646FE7 #E79B64 #B0E764

monochromatic

#1C29B5 #2F3EDF #646FE7 #99A0EF #CED1F7

Accessibility & contrast

On white

4.23

#646FE7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.97

#646FE7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646FE7

4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646FE7	#FFFFFF	#000000	##000000
##646FE7	1.00	4.23	4.97	4.97
#FFFFFF	4.23	1.00	21.00	21.00
#000000	4.97	21.00	1.00	1.00
##000000	4.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A81EB

Deuteranopia (green-blind)

#0576E4

Tritanopia (blue-blind)

#0F8AA0

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #646fe7;
/* rgb */ color: rgb(100, 111, 231);
/* oklch */ color: oklch(59.5% 0.179 275.6);

Tailwind

colors: {
  custom: {
    50: '#9a98ef',
    500: '#646fe7',
    950: '#000000',
  },
}

SCSS

$custom: #646fe7;
$custom-light: #9a98ef;
$custom-dark: #000000;

JSON

{
  "hex": "#646fe7",
  "rgb": {
    "r": 100,
    "g": 111,
    "b": 231
  },
  "hsl": {
    "h": 234.962,
    "s": 73.184,
    "l": 64.902
  },
  "oklch": {
    "l": 0.59507,
    "c": 0.17931,
    "h": 275.6
  },
  "luminance": 0.19848
}

Semantic roles & 50–950 ramp

primary

#646FE7

secondary

#EAE6BD

accent

#C510D5

background

#FAF9FE

surface

#F3F2FD

border

#CDCCD5

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #646FE7

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

Preview Lab → · Contrast checker → · Palette generator →