#646CEA#646CEA

#646CEA is a mid, vivid blue. Relative luminance 0.194; OKLCH L 59.2% C 0.187 H 276.3°. Best body text is #000000 at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#646CEA
RGB	rgb(100, 108, 234)
HSL	hsl(236, 76%, 65%)
HSV	hsv(236, 57%, 92%)
CMYK	cmyk(57.3%, 53.8%, 0%, 8.2%)
CIE-LAB	lab(51.12, 33.02, -64.91)
CIE-LCH	lch(51.12, 72.83, 296.96°)
OKLab	oklab(59.16% 0.0206 -0.186)
OKLCH	oklch(59.16% 0.187 276.3)
XYZ	xyz(25.4646, 19.3731, 80.2235)
Luminance	0.1938 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646CEA #EAE264

analogous

#64AFEA #646CEA #9F64EA

triadic

#646CEA #EA646C #6CEA64

tetradic

#646CEA #EA64AF #EAE264 #64EA9F

square

#646CEA #EA64AF #EAE264 #64EA9F

split-complementary

#646CEA #EA9F64 #AFEA64

monochromatic

#1923BA #2E39E3 #646CEA #9A9FF1 #D0D2F9

Accessibility & contrast

On white

4.31

#646CEA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.88

#646CEA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646CEA

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646CEA	#FFFFFF	#000000	##000000
##646CEA	1.00	4.31	4.88	4.88
#FFFFFF	4.31	1.00	21.00	21.00
#000000	4.88	21.00	1.00	1.00
##000000	4.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#1780EE

Deuteranopia (green-blind)

#0074E7

Tritanopia (blue-blind)

#0589A1

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #646cea;
/* rgb */ color: rgb(100, 108, 234);
/* oklch */ color: oklch(59.2% 0.187 276.3);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#646cea",
  "rgb": {
    "r": 100,
    "g": 108,
    "b": 234
  },
  "hsl": {
    "h": 236.418,
    "s": 76.136,
    "l": 65.49
  },
  "oklch": {
    "l": 0.59163,
    "c": 0.18715,
    "h": 276.3
  },
  "luminance": 0.19375
}

Semantic roles & 50–950 ramp

primary

#646CEA

secondary

#EBE9BE

accent

#CC0DD8

background

#FAF9FE

surface

#F4F1FD

border

#CECBD5

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #646CEA

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

Preview Lab → · Contrast checker → · Palette generator →