#646AF1#646AF1

#646AF1 is a mid, vivid blue. Relative luminance 0.194; OKLCH L 59.3% C 0.199 H 276.6°. Best body text is #000000 at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#646AF1
RGB	rgb(100, 106, 241)
HSL	hsl(237, 83%, 67%)
HSV	hsv(237, 59%, 95%)
CMYK	cmyk(58.5%, 56%, 0%, 5.5%)
CIE-LAB	lab(51.11, 36.46, -68.84)
CIE-LCH	lch(51.11, 77.90, 297.91°)
OKLab	oklab(59.31% 0.0227 -0.1976)
OKLCH	oklch(59.31% 0.199 276.6)
XYZ	xyz(26.2816, 19.3663, 85.5552)
Luminance	0.1937 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646AF1 #F1EB64

analogous

#64B1F1 #646AF1 #A564F1

triadic

#646AF1 #F1646A #6AF164

tetradic

#646AF1 #F164B1 #F1EB64 #64F1A5

square

#646AF1 #F164B1 #F1EB64 #64F1A5

split-complementary

#646AF1 #F1A564 #B1F164

monochromatic

#121AC8 #2C34EC #646AF1 #9CA0F6 #D4D6FB

Accessibility & contrast

On white

4.31

#646AF1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.87

#646AF1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646AF1

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646AF1	#FFFFFF	#000000	##000000
##646AF1	1.00	4.31	4.87	4.87
#FFFFFF	4.31	1.00	21.00	21.00
#000000	4.87	21.00	1.00	1.00
##000000	4.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#0080F6

Deuteranopia (green-blind)

#0074EE

Tritanopia (blue-blind)

#008AA3

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #646af1;
/* rgb */ color: rgb(100, 106, 241);
/* oklch */ color: oklch(59.3% 0.199 276.6);

Tailwind

colors: {
  custom: {
    50: '#9c94f6',
    500: '#646af1',
    950: '#000000',
  },
}

SCSS

$custom: #646af1;
$custom-light: #9c94f6;
$custom-dark: #000000;

JSON

{
  "hex": "#646af1",
  "rgb": {
    "r": 100,
    "g": 106,
    "b": 241
  },
  "hsl": {
    "h": 237.447,
    "s": 83.432,
    "l": 66.863
  },
  "oklch": {
    "l": 0.59308,
    "c": 0.19889,
    "h": 276.6
  },
  "luminance": 0.19368
}

Semantic roles & 50–950 ramp

primary

#646AF1

secondary

#EFEDC2

accent

#D706E0

background

#FAF9FF

surface

#F4F1FF

border

#CECBD7

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #646AF1

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

Preview Lab → · Contrast checker → · Palette generator →