#646CD9#646CD9

#646CD9 is a mid, vivid blue. Relative luminance 0.184; OKLCH L 58.0% C 0.164 H 276.8°. Best body text is #000000 at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#646CD9
RGB	rgb(100, 108, 217)
HSL	hsl(236, 61%, 62%)
HSV	hsv(236, 54%, 85%)
CMYK	cmyk(53.9%, 50.2%, 0%, 14.9%)
CIE-LAB	lab(50.03, 27.60, -57.09)
CIE-LCH	lch(50.03, 63.41, 295.80°)
OKLab	oklab(58% 0.0195 -0.163)
OKLCH	oklch(58% 0.164 276.8)
XYZ	xyz(23.1385, 18.4427, 67.9727)
Luminance	0.1844 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646CD9 #D9D164

analogous

#64A7D9 #646CD9 #9664D9

triadic

#646CD9 #D9646C #6CD964

tetradic

#646CD9 #D964A7 #D9D164 #64D996

square

#646CD9 #D964A7 #D9D164 #64D996

split-complementary

#646CD9 #D99664 #A7D964

monochromatic

#262E9C #333DCD #646CD9 #959BE5 #C6C9F1

Accessibility & contrast

On white

4.48

#646CD9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.69

#646CD9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646CD9

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646CD9	#FFFFFF	#000000	##000000
##646CD9	1.00	4.48	4.69	4.69
#FFFFFF	4.48	1.00	21.00	21.00
#000000	4.69	21.00	1.00	1.00
##000000	4.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#357CDD

Deuteranopia (green-blind)

#2472D7

Tritanopia (blue-blind)

#2B8498

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #646cd9;
/* rgb */ color: rgb(100, 108, 217);
/* oklch */ color: oklch(58.0% 0.164 276.8);

Tailwind

colors: {
  custom: {
    50: '#9896e5',
    500: '#646cd9',
    950: '#000000',
  },
}

SCSS

$custom: #646cd9;
$custom-light: #9896e5;
$custom-dark: #000000;

JSON

{
  "hex": "#646cd9",
  "rgb": {
    "r": 100,
    "g": 108,
    "b": 217
  },
  "hsl": {
    "h": 235.897,
    "s": 60.622,
    "l": 62.157
  },
  "oklch": {
    "l": 0.57995,
    "c": 0.16416,
    "h": 276.8
  },
  "luminance": 0.18444
}

Semantic roles & 50–950 ramp

primary

#646CD9

secondary

#E2DFB7

accent

#BD1DC8

background

#F9F9FE

surface

#F2F1FC

border

#CCCBD5

text

#0F0D16

muted

#7E7E84

Preview Lab

Preview with #646CD9

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

Preview Lab → · Contrast checker → · Palette generator →