#646BE3#646BE3

#646BE3 is a mid, vivid blue. Relative luminance 0.188; OKLCH L 58.5% C 0.179 H 276.8°. Best body text is #000000 at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#646BE3
RGB	rgb(100, 107, 227)
HSL	hsl(237, 69%, 64%)
HSV	hsv(237, 56%, 89%)
CMYK	cmyk(55.9%, 52.9%, 0%, 11%)
CIE-LAB	lab(50.42, 31.39, -62.12)
CIE-LCH	lch(50.42, 69.60, 296.81°)
OKLab	oklab(58.49% 0.0213 -0.1778)
OKLCH	oklch(58.49% 0.179 276.8)
XYZ	xyz(24.3739, 18.7691, 74.9966)
Luminance	0.1877 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646BE3 #E3DC64

analogous

#64ABE3 #646BE3 #9D64E3

triadic

#646BE3 #E3646B #6BE364

tetradic

#646BE3 #E364AB #E3DC64 #64E39D

square

#646BE3 #E364AB #E3DC64 #64E39D

split-complementary

#646BE3 #E39D64 #ABE364

monochromatic

#1F27AD #303ADA #646BE3 #989CEC #CCCEF6

Accessibility & contrast

On white

4.42

#646BE3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.75

#646BE3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646BE3

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646BE3	#FFFFFF	#000000	##000000
##646BE3	1.00	4.42	4.75	4.75
#FFFFFF	4.42	1.00	21.00	21.00
#000000	4.75	21.00	1.00	1.00
##000000	4.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#237DE7

Deuteranopia (green-blind)

#0073E0

Tritanopia (blue-blind)

#1C869D

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #646be3;
/* rgb */ color: rgb(100, 107, 227);
/* oklch */ color: oklch(58.5% 0.179 276.8);

Tailwind

colors: {
  custom: {
    50: '#9a95ec',
    500: '#646be3',
    950: '#000000',
  },
}

SCSS

$custom: #646be3;
$custom-light: #9a95ec;
$custom-dark: #000000;

JSON

{
  "hex": "#646be3",
  "rgb": {
    "r": 100,
    "g": 107,
    "b": 227
  },
  "hsl": {
    "h": 236.693,
    "s": 69.399,
    "l": 64.118
  },
  "oklch": {
    "l": 0.58489,
    "c": 0.17907,
    "h": 276.8
  },
  "luminance": 0.18771
}

Semantic roles & 50–950 ramp

primary

#646BE3

secondary

#E8E5BB

accent

#C714D1

background

#FAF9FE

surface

#F3F1FD

border

#CDCBD5

text

#0F0D16

muted

#7F7E84

Preview Lab

Preview with #646BE3

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

Preview Lab → · Contrast checker → · Palette generator →