#646AF0#646AF0

#646AF0 is a mid, vivid blue. Relative luminance 0.193; OKLCH L 59.2% C 0.198 H 276.6°. Best body text is #000000 at 4.86:1 contrast (WCAG AA passes).

Color values

HEX	#646AF0
RGB	rgb(100, 106, 240)
HSL	hsl(237, 82%, 67%)
HSV	hsv(237, 58%, 94%)
CMYK	cmyk(58.3%, 55.8%, 0%, 5.9%)
CIE-LAB	lab(51.04, 36.14, -68.40)
CIE-LCH	lch(51.04, 77.36, 297.85°)
OKLab	oklab(59.24% 0.0227 -0.1963)
OKLCH	oklch(59.24% 0.198 276.6)
XYZ	xyz(26.1327, 19.3067, 84.7707)
Luminance	0.1931 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646AF0 #F0EA64

analogous

#64B0F0 #646AF0 #A464F0

triadic

#646AF0 #F0646A #6AF064

tetradic

#646AF0 #F064B0 #F0EA64 #64F0A4

square

#646AF0 #F064B0 #F0EA64 #64F0A4

split-complementary

#646AF0 #F0A464 #B0F064

monochromatic

#131BC6 #2C34EB #646AF0 #9CA0F5 #D4D5FB

Accessibility & contrast

On white

4.32

#646AF0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.86

#646AF0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646AF0

4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646AF0	#FFFFFF	#000000	##000000
##646AF0	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)

#0080F5

Deuteranopia (green-blind)

#0074ED

Tritanopia (blue-blind)

#008AA3

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #646af0;
/* rgb */ color: rgb(100, 106, 240);
/* oklch */ color: oklch(59.2% 0.198 276.6);

Tailwind

colors: {
  custom: {
    50: '#9c94f6',
    500: '#646af0',
    950: '#000000',
  },
}

SCSS

$custom: #646af0;
$custom-light: #9c94f6;
$custom-dark: #000000;

JSON

{
  "hex": "#646af0",
  "rgb": {
    "r": 100,
    "g": 106,
    "b": 240
  },
  "hsl": {
    "h": 237.429,
    "s": 82.353,
    "l": 66.667
  },
  "oklch": {
    "l": 0.59235,
    "c": 0.19759,
    "h": 276.6
  },
  "luminance": 0.19309
}

Semantic roles & 50–950 ramp

primary

#646AF0

secondary

#EEEDC1

accent

#D507DF

background

#FAF9FF

surface

#F4F1FF

border

#CECBD7

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #646AF0

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

Preview Lab → · Contrast checker → · Palette generator →