#646AE8#646AE8

#646AE8 is a mid, vivid blue. Relative luminance 0.188; OKLCH L 58.7% C 0.187 H 276.9°. Best body text is #000000 at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#646AE8
RGB	rgb(100, 106, 232)
HSL	hsl(237, 74%, 65%)
HSV	hsv(237, 57%, 91%)
CMYK	cmyk(56.9%, 54.3%, 0%, 9%)
CIE-LAB	lab(50.50, 33.59, -64.79)
CIE-LCH	lch(50.50, 72.98, 297.40°)
OKLab	oklab(58.66% 0.0225 -0.1857)
OKLCH	oklch(58.66% 0.187 276.9)
XYZ	xyz(24.9704, 18.8418, 78.6493)
Luminance	0.1884 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646AE8 #E8E264

analogous

#64ACE8 #646AE8 #A064E8

triadic

#646AE8 #E8646A #6AE864

tetradic

#646AE8 #E864AC #E8E264 #64E8A0

square

#646AE8 #E864AC #E8E264 #64E8A0

split-complementary

#646AE8 #E8A064 #ACE864

monochromatic

#1B22B7 #2F37E0 #646AE8 #999DF0 #CFD0F8

Accessibility & contrast

On white

4.40

#646AE8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.77

#646AE8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646AE8

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646AE8	#FFFFFF	#000000	##000000
##646AE8	1.00	4.40	4.77	4.77
#FFFFFF	4.40	1.00	21.00	21.00
#000000	4.77	21.00	1.00	1.00
##000000	4.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#117EEC

Deuteranopia (green-blind)

#0073E5

Tritanopia (blue-blind)

#0F879F

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #646ae8;
/* rgb */ color: rgb(100, 106, 232);
/* oklch */ color: oklch(58.7% 0.187 276.9);

Tailwind

colors: {
  custom: {
    50: '#9b94f0',
    500: '#646ae8',
    950: '#000000',
  },
}

SCSS

$custom: #646ae8;
$custom-light: #9b94f0;
$custom-dark: #000000;

JSON

{
  "hex": "#646ae8",
  "rgb": {
    "r": 100,
    "g": 106,
    "b": 232
  },
  "hsl": {
    "h": 237.273,
    "s": 74.157,
    "l": 65.098
  },
  "oklch": {
    "l": 0.58658,
    "c": 0.18703,
    "h": 276.9
  },
  "luminance": 0.18844
}

Semantic roles & 50–950 ramp

primary

#646AE8

secondary

#EAE8BE

accent

#CD0FD6

background

#FAF9FE

surface

#F4F1FD

border

#CECBD5

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #646AE8

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

Preview Lab → · Contrast checker → · Palette generator →