#646EFF#646EFF

#646EFF is a mid, highly saturated blue. Relative luminance 0.211; OKLCH L 61.0% C 0.212 H 275.2°. Best body text is #000000 at 5.22:1 contrast (WCAG AA passes).

Color values

HEX	#646EFF
RGB	rgb(100, 110, 255)
HSL	hsl(236, 100%, 70%)
HSV	hsv(236, 61%, 100%)
CMYK	cmyk(60.8%, 56.9%, 0%, 0%)
CIE-LAB	lab(53.04, 38.56, -73.50)
CIE-LCH	lch(53.04, 83.00, 297.68°)
OKLab	oklab(61.05% 0.0192 -0.2113)
OKLCH	oklch(61.05% 0.212 275.2)
XYZ	xyz(28.8756, 21.0789, 97.1353)
Luminance	0.2108 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646EFF #FFF564

analogous

#64BCFF #646EFF #A864FF

triadic

#646EFF #FF646E #6EFF64

tetradic

#646EFF #FF64BC #FFF564 #64FFA8

square

#646EFF #FF64BC #FFF564 #64FFA8

split-complementary

#646EFF #FFA864 #BCFF64

monochromatic

#000FE9 #2735FF #646EFF #A1A7FF #DEE1FF

Accessibility & contrast

On white

4.03

#646EFF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.22

#646EFF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646EFF

5.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646EFF	#FFFFFF	#000000	##000000
##646EFF	1.00	4.03	5.22	5.22
#FFFFFF	4.03	1.00	21.00	21.00
#000000	5.22	21.00	1.00	1.00
##000000	5.22	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#0085FF

Deuteranopia (green-blind)

#0078FC

Tritanopia (blue-blind)

#0091AC

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #646eff;
/* rgb */ color: rgb(100, 110, 255);
/* oklch */ color: oklch(61.0% 0.212 275.2);

Tailwind

colors: {
  custom: {
    50: '#9e97ff',
    500: '#646eff',
    950: '#000000',
  },
}

SCSS

$custom: #646eff;
$custom-light: #9e97ff;
$custom-dark: #000000;

JSON

{
  "hex": "#646eff",
  "rgb": {
    "r": 100,
    "g": 110,
    "b": 255
  },
  "hsl": {
    "h": 236.129,
    "s": 100,
    "l": 69.608
  },
  "oklch": {
    "l": 0.61045,
    "c": 0.21214,
    "h": 275.2
  },
  "luminance": 0.21081
}

Semantic roles & 50–950 ramp

primary

#646EFF

secondary

#F6F3C9

accent

#D700E6

background

#FAF9FF

surface

#F4F2FF

border

#CECCD7

text

#100D18

muted

#7F7E86

Preview Lab

Preview with #646EFF

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

Preview Lab → · Contrast checker → · Palette generator →