#646DE3#646DE3

#646DE3 is a mid, vivid blue. Relative luminance 0.192; OKLCH L 58.9% C 0.176 H 276.3°. Best body text is #000000 at 4.84:1 contrast (WCAG AA passes).

Color values

HEX	#646DE3
RGB	rgb(100, 109, 227)
HSL	hsl(236, 69%, 64%)
HSV	hsv(236, 56%, 89%)
CMYK	cmyk(55.9%, 52%, 0%, 11%)
CIE-LAB	lab(50.91, 30.17, -61.32)
CIE-LCH	lch(50.91, 68.34, 296.20°)
OKLab	oklab(58.86% 0.0192 -0.1754)
OKLCH	oklch(58.86% 0.176 276.3)
XYZ	xyz(24.5848, 19.1909, 75.0669)
Luminance	0.1919 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646DE3 #E3DA64

analogous

#64ADE3 #646DE3 #9B64E3

triadic

#646DE3 #E3646D #6DE364

tetradic

#646DE3 #E364AD #E3DA64 #64E39B

square

#646DE3 #E364AD #E3DA64 #64E39B

split-complementary

#646DE3 #E39B64 #ADE364

monochromatic

#1F29AD #303CDA #646DE3 #989EEC #CCCFF6

Accessibility & contrast

On white

4.34

#646DE3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.84

#646DE3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646DE3

4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646DE3	#FFFFFF	#000000	##000000
##646DE3	1.00	4.34	4.84	4.84
#FFFFFF	4.34	1.00	21.00	21.00
#000000	4.84	21.00	1.00	1.00
##000000	4.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A7FE7

Deuteranopia (green-blind)

#0B74E1

Tritanopia (blue-blind)

#1B889E

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #646de3;
/* rgb */ color: rgb(100, 109, 227);
/* oklch */ color: oklch(58.9% 0.176 276.3);

Tailwind

colors: {
  custom: {
    50: '#9a96ec',
    500: '#646de3',
    950: '#000000',
  },
}

SCSS

$custom: #646de3;
$custom-light: #9a96ec;
$custom-dark: #000000;

JSON

{
  "hex": "#646de3",
  "rgb": {
    "r": 100,
    "g": 109,
    "b": 227
  },
  "hsl": {
    "h": 235.748,
    "s": 69.399,
    "l": 64.118
  },
  "oklch": {
    "l": 0.58859,
    "c": 0.17649,
    "h": 276.3
  },
  "luminance": 0.19193
}

Semantic roles & 50–950 ramp

primary

#646DE3

secondary

#E8E4BB

accent

#C414D1

background

#FAF9FE

surface

#F3F2FD

border

#CDCCD5

text

#0F0D16

muted

#7F7E84

Preview Lab

Preview with #646DE3

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

Preview Lab → · Contrast checker → · Palette generator →