#646DFF#646DFF

#646DFF is a mid, highly saturated blue. Relative luminance 0.209; OKLCH L 60.9% C 0.213 H 275.4°. Best body text is #000000 at 5.17:1 contrast (WCAG AA passes).

Color values

HEX	#646DFF
RGB	rgb(100, 109, 255)
HSL	hsl(237, 100%, 70%)
HSV	hsv(237, 61%, 100%)
CMYK	cmyk(60.8%, 57.3%, 0%, 0%)
CIE-LAB	lab(52.80, 39.15, -73.89)
CIE-LCH	lch(52.80, 83.62, 297.92°)
OKLab	oklab(60.87% 0.0201 -0.2124)
OKLCH	oklch(60.87% 0.213 275.4)
XYZ	xyz(28.7683, 20.8643, 97.0996)
Luminance	0.2087 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646DFF #FFF664

analogous

#64BBFF #646DFF #A964FF

triadic

#646DFF #FF646D #6DFF64

tetradic

#646DFF #FF64BB #FFF664 #64FFA9

square

#646DFF #FF64BB #FFF664 #64FFA9

split-complementary

#646DFF #FFA964 #BBFF64

monochromatic

#000EE9 #2733FF #646DFF #A1A7FF #DEE0FF

Accessibility & contrast

On white

4.06

#646DFF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.17

#646DFF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646DFF

5.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646DFF	#FFFFFF	#000000	##000000
##646DFF	1.00	4.06	5.17	5.17
#FFFFFF	4.06	1.00	21.00	21.00
#000000	5.17	21.00	1.00	1.00
##000000	5.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#0085FF

Deuteranopia (green-blind)

#0077FC

Tritanopia (blue-blind)

#0090AC

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #646dff;
/* rgb */ color: rgb(100, 109, 255);
/* oklch */ color: oklch(60.9% 0.213 275.4);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#646dff",
  "rgb": {
    "r": 100,
    "g": 109,
    "b": 255
  },
  "hsl": {
    "h": 236.516,
    "s": 100,
    "l": 69.608
  },
  "oklch": {
    "l": 0.6087,
    "c": 0.21335,
    "h": 275.4
  },
  "luminance": 0.20867
}

Semantic roles & 50–950 ramp

primary

#646DFF

secondary

#F6F3C9

accent

#D800E6

background

#FAF9FF

surface

#F4F2FF

border

#CECCD7

text

#100D18

muted

#7F7E86

Preview Lab

Preview with #646DFF

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

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