#646DEC#646DEC

#646DEC is a mid, vivid blue. Relative luminance 0.197; OKLCH L 59.5% C 0.189 H 276.0°. Best body text is #000000 at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#646DEC
RGB	rgb(100, 109, 236)
HSL	hsl(236, 78%, 66%)
HSV	hsv(236, 58%, 93%)
CMYK	cmyk(57.6%, 53.8%, 0%, 7.5%)
CIE-LAB	lab(51.50, 33.05, -65.43)
CIE-LCH	lch(51.50, 73.30, 296.80°)
OKLab	oklab(59.49% 0.0197 -0.1875)
OKLCH	oklch(59.49% 0.189 276)
XYZ	xyz(25.8596, 19.7008, 81.7806)
Luminance	0.1970 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646DEC #ECE364

analogous

#64B1EC #646DEC #9F64EC

triadic

#646DEC #EC646D #6DEC64

tetradic

#646DEC #EC64B1 #ECE364 #64EC9F

square

#646DEC #EC64B1 #ECE364 #64EC9F

split-complementary

#646DEC #EC9F64 #B1EC64

monochromatic

#1722BE #2D3AE5 #646DEC #9BA0F3 #D1D4F9

Accessibility & contrast

On white

4.25

#646DEC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.94

#646DEC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646DEC

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646DEC	#FFFFFF	#000000	##000000
##646DEC	1.00	4.25	4.94	4.94
#FFFFFF	4.25	1.00	21.00	21.00
#000000	4.94	21.00	1.00	1.00
##000000	4.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#1781F0

Deuteranopia (green-blind)

#0075E9

Tritanopia (blue-blind)

#008AA2

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #646dec;
/* rgb */ color: rgb(100, 109, 236);
/* oklch */ color: oklch(59.5% 0.189 276.0);

Tailwind

colors: {
  custom: {
    50: '#9b96f3',
    500: '#646dec',
    950: '#000000',
  },
}

SCSS

$custom: #646dec;
$custom-light: #9b96f3;
$custom-dark: #000000;

JSON

{
  "hex": "#646dec",
  "rgb": {
    "r": 100,
    "g": 109,
    "b": 236
  },
  "hsl": {
    "h": 236.029,
    "s": 78.161,
    "l": 65.882
  },
  "oklch": {
    "l": 0.59487,
    "c": 0.18854,
    "h": 276
  },
  "luminance": 0.19703
}

Semantic roles & 50–950 ramp

primary

#646DEC

secondary

#ECE9BF

accent

#CD0BDA

background

#FAF9FE

surface

#F4F2FD

border

#CECCD5

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #646DEC

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

Preview Lab → · Contrast checker → · Palette generator →