#646CFF#646CFF

#646CFF is a mid, highly saturated blue. Relative luminance 0.207; OKLCH L 60.7% C 0.215 H 275.6°. Best body text is #000000 at 5.13:1 contrast (WCAG AA passes).

Color values

HEX	#646CFF
RGB	rgb(100, 108, 255)
HSL	hsl(237, 100%, 70%)
HSV	hsv(237, 61%, 100%)
CMYK	cmyk(60.8%, 57.6%, 0%, 0%)
CIE-LAB	lab(52.57, 39.75, -74.27)
CIE-LCH	lch(52.57, 84.23, 298.16°)
OKLab	oklab(60.7% 0.021 -0.2135)
OKLCH	oklch(60.7% 0.215 275.6)
XYZ	xyz(28.6622, 20.6522, 97.0642)
Luminance	0.2065 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646CFF #FFF764

analogous

#64BAFF #646CFF #A964FF

triadic

#646CFF #FF646C #6CFF64

tetradic

#646CFF #FF64BA #FFF764 #64FFA9

square

#646CFF #FF64BA #FFF764 #64FFA9

split-complementary

#646CFF #FFA964 #BAFF64

monochromatic

#000CE9 #2732FF #646CFF #A1A6FF #DEE0FF

Accessibility & contrast

On white

4.09

#646CFF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.13

#646CFF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646CFF

5.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646CFF	#FFFFFF	#000000	##000000
##646CFF	1.00	4.09	5.13	5.13
#FFFFFF	4.09	1.00	21.00	21.00
#000000	5.13	21.00	1.00	1.00
##000000	5.13	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#0084FF

Deuteranopia (green-blind)

#0077FC

Tritanopia (blue-blind)

#0090AB

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #646cff;
/* rgb */ color: rgb(100, 108, 255);
/* oklch */ color: oklch(60.7% 0.215 275.6);

Tailwind

colors: {
  custom: {
    50: '#9e96ff',
    500: '#646cff',
    950: '#000000',
  },
}

SCSS

$custom: #646cff;
$custom-light: #9e96ff;
$custom-dark: #000000;

JSON

{
  "hex": "#646cff",
  "rgb": {
    "r": 100,
    "g": 108,
    "b": 255
  },
  "hsl": {
    "h": 236.903,
    "s": 100,
    "l": 69.608
  },
  "oklch": {
    "l": 0.60697,
    "c": 0.21456,
    "h": 275.6
  },
  "luminance": 0.20654
}

Semantic roles & 50–950 ramp

primary

#646CFF

secondary

#F6F3C9

accent

#DA00E6

background

#FAF9FF

surface

#F4F2FF

border

#CECCD7

text

#100D18

muted

#7F7E86

Preview Lab

Preview with #646CFF

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

Preview Lab → · Contrast checker → · Palette generator →