#646DEB#646DEB

#646DEB is a mid, vivid blue. Relative luminance 0.196; OKLCH L 59.4% C 0.187 H 276.0°. Best body text is #000000 at 4.93:1 contrast (WCAG AA passes).

Color values

HEX	#646DEB
RGB	rgb(100, 109, 235)
HSL	hsl(236, 77%, 66%)
HSV	hsv(236, 57%, 92%)
CMYK	cmyk(57.4%, 53.6%, 0%, 7.8%)
CIE-LAB	lab(51.43, 32.73, -64.97)
CIE-LCH	lch(51.43, 72.75, 296.74°)
OKLab	oklab(59.42% 0.0197 -0.1862)
OKLCH	oklch(59.42% 0.187 276)
XYZ	xyz(25.7147, 19.6429, 81.0175)
Luminance	0.1965 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646DEB #EBE264

analogous

#64B0EB #646DEB #9E64EB

triadic

#646DEB #EB646D #6DEB64

tetradic

#646DEB #EB64B0 #EBE264 #64EB9E

square

#646DEB #EB64B0 #EBE264 #64EB9E

split-complementary

#646DEB #EB9E64 #B0EB64

monochromatic

#1823BC #2E3AE4 #646DEB #9AA0F2 #D0D3F9

Accessibility & contrast

On white

4.26

#646DEB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.93

#646DEB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646DEB

4.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646DEB	#FFFFFF	#000000	##000000
##646DEB	1.00	4.26	4.93	4.93
#FFFFFF	4.26	1.00	21.00	21.00
#000000	4.93	21.00	1.00	1.00
##000000	4.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A80EF

Deuteranopia (green-blind)

#0075E8

Tritanopia (blue-blind)

#008AA1

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #646deb;
/* rgb */ color: rgb(100, 109, 235);
/* oklch */ color: oklch(59.4% 0.187 276.0);

Tailwind

colors: {
  custom: {
    50: '#9b96f2',
    500: '#646deb',
    950: '#000000',
  },
}

SCSS

$custom: #646deb;
$custom-light: #9b96f2;
$custom-dark: #000000;

JSON

{
  "hex": "#646deb",
  "rgb": {
    "r": 100,
    "g": 109,
    "b": 235
  },
  "hsl": {
    "h": 236,
    "s": 77.143,
    "l": 65.686
  },
  "oklch": {
    "l": 0.59416,
    "c": 0.18722,
    "h": 276
  },
  "luminance": 0.19645
}

Semantic roles & 50–950 ramp

primary

#646DEB

secondary

#ECE9BF

accent

#CC0CD9

background

#FAF9FE

surface

#F4F2FD

border

#CECCD5

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #646DEB

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

Preview Lab → · Contrast checker → · Palette generator →