#646BE5#646BE5

#646BE5 is a mid, vivid blue. Relative luminance 0.189; OKLCH L 58.6% C 0.182 H 276.8°. Best body text is #000000 at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#646BE5
RGB	rgb(100, 107, 229)
HSL	hsl(237, 71%, 65%)
HSV	hsv(237, 56%, 90%)
CMYK	cmyk(56.3%, 53.3%, 0%, 10.2%)
CIE-LAB	lab(50.55, 32.03, -63.03)
CIE-LCH	lch(50.55, 70.70, 296.93°)
OKLab	oklab(58.63% 0.0214 -0.1805)
OKLCH	oklch(58.63% 0.182 276.8)
XYZ	xyz(24.6516, 18.8801, 76.4588)
Luminance	0.1888 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646BE5 #E5DE64

analogous

#64ACE5 #646BE5 #9E64E5

triadic

#646BE5 #E5646B #6BE564

tetradic

#646BE5 #E564AC #E5DE64 #64E59E

square

#646BE5 #E564AC #E5DE64 #64E59E

split-complementary

#646BE5 #E59E64 #ACE564

monochromatic

#1E26B1 #3039DC #646BE5 #989DEE #CDCFF7

Accessibility & contrast

On white

4.40

#646BE5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.78

#646BE5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646BE5

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646BE5	#FFFFFF	#000000	##000000
##646BE5	1.00	4.40	4.78	4.78
#FFFFFF	4.40	1.00	21.00	21.00
#000000	4.78	21.00	1.00	1.00
##000000	4.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F7EE9

Deuteranopia (green-blind)

#0073E2

Tritanopia (blue-blind)

#17879E

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #646be5;
/* rgb */ color: rgb(100, 107, 229);
/* oklch */ color: oklch(58.6% 0.182 276.8);

Tailwind

colors: {
  custom: {
    50: '#9a95ee',
    500: '#646be5',
    950: '#000000',
  },
}

SCSS

$custom: #646be5;
$custom-light: #9a95ee;
$custom-dark: #000000;

JSON

{
  "hex": "#646be5",
  "rgb": {
    "r": 100,
    "g": 107,
    "b": 229
  },
  "hsl": {
    "h": 236.744,
    "s": 71.271,
    "l": 64.51
  },
  "oklch": {
    "l": 0.58629,
    "c": 0.18175,
    "h": 276.8
  },
  "luminance": 0.18882
}

Semantic roles & 50–950 ramp

primary

#646BE5

secondary

#E9E6BC

accent

#C912D3

background

#FAF9FE

surface

#F3F1FD

border

#CDCBD5

text

#0F0D16

muted

#7F7E84

Preview Lab

Preview with #646BE5

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

Preview Lab → · Contrast checker → · Palette generator →