#646DEA#646DEA

#646DEA is a mid, vivid blue. Relative luminance 0.196; OKLCH L 59.3% C 0.186 H 276.1°. Best body text is #000000 at 4.92:1 contrast (WCAG AA passes).

Color values

HEX	#646DEA
RGB	rgb(100, 109, 234)
HSL	hsl(236, 76%, 65%)
HSV	hsv(236, 57%, 92%)
CMYK	cmyk(57.3%, 53.4%, 0%, 8.2%)
CIE-LAB	lab(51.37, 32.41, -64.52)
CIE-LCH	lch(51.37, 72.20, 296.67°)
OKLab	oklab(59.35% 0.0196 -0.1848)
OKLCH	oklch(59.35% 0.186 276.1)
XYZ	xyz(25.5707, 19.5853, 80.2588)
Luminance	0.1959 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646DEA #EAE164

analogous

#64B0EA #646DEA #9E64EA

triadic

#646DEA #EA646D #6DEA64

tetradic

#646DEA #EA64B0 #EAE164 #64EA9E

square

#646DEA #EA64B0 #EAE164 #64EA9E

split-complementary

#646DEA #EA9E64 #B0EA64

monochromatic

#1924BA #2E3AE3 #646DEA #9AA0F1 #D0D3F9

Accessibility & contrast

On white

4.27

#646DEA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.92

#646DEA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646DEA

4.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646DEA	#FFFFFF	#000000	##000000
##646DEA	1.00	4.27	4.92	4.92
#FFFFFF	4.27	1.00	21.00	21.00
#000000	4.92	21.00	1.00	1.00
##000000	4.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C80EE

Deuteranopia (green-blind)

#0075E7

Tritanopia (blue-blind)

#048AA1

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #646dea;
/* rgb */ color: rgb(100, 109, 234);
/* oklch */ color: oklch(59.3% 0.186 276.1);

Tailwind

colors: {
  custom: {
    50: '#9b96f1',
    500: '#646dea',
    950: '#000000',
  },
}

SCSS

$custom: #646dea;
$custom-light: #9b96f1;
$custom-dark: #000000;

JSON

{
  "hex": "#646dea",
  "rgb": {
    "r": 100,
    "g": 109,
    "b": 234
  },
  "hsl": {
    "h": 235.97,
    "s": 76.136,
    "l": 65.49
  },
  "oklch": {
    "l": 0.59346,
    "c": 0.18588,
    "h": 276.1
  },
  "luminance": 0.19587
}

Semantic roles & 50–950 ramp

primary

#646DEA

secondary

#EBE8BE

accent

#CB0DD8

background

#FAF9FE

surface

#F4F2FD

border

#CECCD5

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #646DEA

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

Preview Lab → · Contrast checker → · Palette generator →