#646AEF#646AEF

#646AEF is a mid, vivid blue. Relative luminance 0.192; OKLCH L 59.2% C 0.196 H 276.6°. Best body text is #000000 at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#646AEF
RGB	rgb(100, 106, 239)
HSL	hsl(237, 81%, 66%)
HSV	hsv(237, 58%, 94%)
CMYK	cmyk(58.2%, 55.6%, 0%, 6.3%)
CIE-LAB	lab(50.98, 35.82, -67.95)
CIE-LCH	lch(50.98, 76.81, 297.80°)
OKLab	oklab(59.16% 0.0227 -0.195)
OKLCH	oklch(59.16% 0.196 276.6)
XYZ	xyz(25.9845, 19.2475, 83.9905)
Luminance	0.1925 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646AEF #EFE964

analogous

#64B0EF #646AEF #A464EF

triadic

#646AEF #EF646A #6AEF64

tetradic

#646AEF #EF64B0 #EFE964 #64EFA4

square

#646AEF #EF64B0 #EFE964 #64EFA4

split-complementary

#646AEF #EFA464 #B0EF64

monochromatic

#141CC4 #2D35E9 #646AEF #9B9FF5 #D3D5FA

Accessibility & contrast

On white

4.33

#646AEF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.85

#646AEF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646AEF

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646AEF	#FFFFFF	#000000	##000000
##646AEF	1.00	4.33	4.85	4.85
#FFFFFF	4.33	1.00	21.00	21.00
#000000	4.85	21.00	1.00	1.00
##000000	4.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#007FF4

Deuteranopia (green-blind)

#0074EC

Tritanopia (blue-blind)

#0089A2

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #646aef;
/* rgb */ color: rgb(100, 106, 239);
/* oklch */ color: oklch(59.2% 0.196 276.6);

Tailwind

colors: {
  custom: {
    50: '#9c94f5',
    500: '#646aef',
    950: '#000000',
  },
}

SCSS

$custom: #646aef;
$custom-light: #9c94f5;
$custom-dark: #000000;

JSON

{
  "hex": "#646aef",
  "rgb": {
    "r": 100,
    "g": 106,
    "b": 239
  },
  "hsl": {
    "h": 237.41,
    "s": 81.287,
    "l": 66.471
  },
  "oklch": {
    "l": 0.59162,
    "c": 0.19627,
    "h": 276.6
  },
  "luminance": 0.19249
}

Semantic roles & 50–950 ramp

primary

#646AEF

secondary

#EEECC1

accent

#D408DE

background

#FAF9FF

surface

#F4F1FE

border

#CECBD6

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #646AEF

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

Preview Lab → · Contrast checker → · Palette generator →