#646FF0#646FF0

#646FF0 is a mid, vivid blue. Relative luminance 0.204; OKLCH L 60.1% C 0.191 H 275.4°. Best body text is #000000 at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#646FF0
RGB	rgb(100, 111, 240)
HSL	hsl(235, 82%, 67%)
HSV	hsv(235, 58%, 94%)
CMYK	cmyk(58.3%, 53.8%, 0%, 5.9%)
CIE-LAB	lab(52.25, 33.13, -66.44)
CIE-LCH	lch(52.25, 74.25, 296.50°)
OKLab	oklab(60.14% 0.0179 -0.1905)
OKLCH	oklch(60.14% 0.191 275.4)
XYZ	xyz(26.6630, 20.3675, 84.9474)
Luminance	0.2037 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646FF0 #F0E564

analogous

#64B5F0 #646FF0 #9F64F0

triadic

#646FF0 #F0646F #6FF064

tetradic

#646FF0 #F064B5 #F0E564 #64F09F

square

#646FF0 #F064B5 #F0E564 #64F09F

split-complementary

#646FF0 #F09F64 #B5F064

monochromatic

#1321C6 #2C3BEB #646FF0 #9CA3F5 #D4D7FB

Accessibility & contrast

On white

4.14

#646FF0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.07

#646FF0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646FF0

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646FF0	#FFFFFF	#000000	##000000
##646FF0	1.00	4.14	5.07	5.07
#FFFFFF	4.14	1.00	21.00	21.00
#000000	5.07	21.00	1.00	1.00
##000000	5.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#1683F4

Deuteranopia (green-blind)

#0077ED

Tritanopia (blue-blind)

#008DA5

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #646ff0;
/* rgb */ color: rgb(100, 111, 240);
/* oklch */ color: oklch(60.1% 0.191 275.4);

Tailwind

colors: {
  custom: {
    50: '#9c98f6',
    500: '#646ff0',
    950: '#000000',
  },
}

SCSS

$custom: #646ff0;
$custom-light: #9c98f6;
$custom-dark: #000000;

JSON

{
  "hex": "#646ff0",
  "rgb": {
    "r": 100,
    "g": 111,
    "b": 240
  },
  "hsl": {
    "h": 235.286,
    "s": 82.353,
    "l": 66.667
  },
  "oklch": {
    "l": 0.60135,
    "c": 0.19133,
    "h": 275.4
  },
  "luminance": 0.20369
}

Semantic roles & 50–950 ramp

primary

#646FF0

secondary

#EEEBC1

accent

#CE07DF

background

#FAF9FF

surface

#F4F2FF

border

#CECCD7

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #646FF0

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

Preview Lab → · Contrast checker → · Palette generator →