#646FEC#646FEC

#646FEC is a mid, vivid blue. Relative luminance 0.201; OKLCH L 59.9% C 0.186 H 275.5°. Best body text is #000000 at 5.03:1 contrast (WCAG AA passes).

Color values

HEX	#646FEC
RGB	rgb(100, 111, 236)
HSL	hsl(235, 78%, 66%)
HSV	hsv(235, 58%, 93%)
CMYK	cmyk(57.6%, 53%, 0%, 7.5%)
CIE-LAB	lab(51.99, 31.84, -64.63)
CIE-LCH	lch(51.99, 72.05, 296.23°)
OKLab	oklab(59.85% 0.0177 -0.1852)
OKLCH	oklch(59.85% 0.186 275.5)
XYZ	xyz(26.0754, 20.1324, 81.8525)
Luminance	0.2013 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646FEC #ECE164

analogous

#64B3EC #646FEC #9D64EC

triadic

#646FEC #EC646F #6FEC64

tetradic

#646FEC #EC64B3 #ECE164 #64EC9D

square

#646FEC #EC64B3 #ECE164 #64EC9D

split-complementary

#646FEC #EC9D64 #B3EC64

monochromatic

#1725BE #2D3CE5 #646FEC #9BA2F3 #D1D4F9

Accessibility & contrast

On white

4.18

#646FEC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.03

#646FEC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646FEC

5.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646FEC	#FFFFFF	#000000	##000000
##646FEC	1.00	4.18	5.03	5.03
#FFFFFF	4.18	1.00	21.00	21.00
#000000	5.03	21.00	1.00	1.00
##000000	5.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#2182F0

Deuteranopia (green-blind)

#0076E9

Tritanopia (blue-blind)

#008CA3

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #646fec;
/* rgb */ color: rgb(100, 111, 236);
/* oklch */ color: oklch(59.9% 0.186 275.5);

Tailwind

colors: {
  custom: {
    50: '#9b98f3',
    500: '#646fec',
    950: '#000000',
  },
}

SCSS

$custom: #646fec;
$custom-light: #9b98f3;
$custom-dark: #000000;

JSON

{
  "hex": "#646fec",
  "rgb": {
    "r": 100,
    "g": 111,
    "b": 236
  },
  "hsl": {
    "h": 235.147,
    "s": 78.161,
    "l": 65.882
  },
  "oklch": {
    "l": 0.59853,
    "c": 0.18602,
    "h": 275.5
  },
  "luminance": 0.20134
}

Semantic roles & 50–950 ramp

primary

#646FEC

secondary

#ECE9BF

accent

#CA0BDA

background

#FAF9FE

surface

#F4F2FD

border

#CECCD5

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #646FEC

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

Preview Lab → · Contrast checker → · Palette generator →