#646FEB#646FEB

#646FEB is a mid, vivid blue. Relative luminance 0.201; OKLCH L 59.8% C 0.185 H 275.5°. Best body text is #000000 at 5.02:1 contrast (WCAG AA passes).

Color values

HEX	#646FEB
RGB	rgb(100, 111, 235)
HSL	hsl(235, 77%, 66%)
HSV	hsv(235, 57%, 92%)
CMYK	cmyk(57.4%, 52.8%, 0%, 7.8%)
CIE-LAB	lab(51.92, 31.52, -64.18)
CIE-LCH	lch(51.92, 71.50, 296.16°)
OKLab	oklab(59.78% 0.0177 -0.1838)
OKLCH	oklch(59.78% 0.185 275.5)
XYZ	xyz(25.9305, 20.0745, 81.0895)
Luminance	0.2008 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646FEB #EBE064

analogous

#64B2EB #646FEB #9C64EB

triadic

#646FEB #EB646F #6FEB64

tetradic

#646FEB #EB64B2 #EBE064 #64EB9C

square

#646FEB #EB64B2 #EBE064 #64EB9C

split-complementary

#646FEB #EB9C64 #B2EB64

monochromatic

#1826BC #2E3DE4 #646FEB #9AA1F2 #D0D4F9

Accessibility & contrast

On white

4.19

#646FEB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.02

#646FEB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646FEB

5.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646FEB	#FFFFFF	#000000	##000000
##646FEB	1.00	4.19	5.02	5.02
#FFFFFF	4.19	1.00	21.00	21.00
#000000	5.02	21.00	1.00	1.00
##000000	5.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#2382EF

Deuteranopia (green-blind)

#0076E8

Tritanopia (blue-blind)

#008CA2

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #646feb;
/* rgb */ color: rgb(100, 111, 235);
/* oklch */ color: oklch(59.8% 0.185 275.5);

Tailwind

colors: {
  custom: {
    50: '#9b98f2',
    500: '#646feb',
    950: '#000000',
  },
}

SCSS

$custom: #646feb;
$custom-light: #9b98f2;
$custom-dark: #000000;

JSON

{
  "hex": "#646feb",
  "rgb": {
    "r": 100,
    "g": 111,
    "b": 235
  },
  "hsl": {
    "h": 235.111,
    "s": 77.143,
    "l": 65.686
  },
  "oklch": {
    "l": 0.59784,
    "c": 0.18468,
    "h": 275.5
  },
  "luminance": 0.20076
}

Semantic roles & 50–950 ramp

primary

#646FEB

secondary

#ECE8BF

accent

#C90CD9

background

#FAF9FE

surface

#F4F2FD

border

#CECCD5

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #646FEB

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

Preview Lab → · Contrast checker → · Palette generator →