#646FD6#646FD6

#646FD6 is a mid, vivid blue. Relative luminance 0.189; OKLCH L 58.4% C 0.156 H 275.9°. Best body text is #000000 at 4.79:1 contrast (WCAG AA passes).

Color values

HEX	#646FD6
RGB	rgb(100, 111, 214)
HSL	hsl(234, 58%, 62%)
HSV	hsv(234, 53%, 84%)
CMYK	cmyk(53.3%, 48.1%, 0%, 16.1%)
CIE-LAB	lab(50.61, 24.81, -54.46)
CIE-LCH	lch(50.61, 59.84, 294.49°)
OKLab	oklab(58.37% 0.0159 -0.1552)
OKLCH	oklch(58.37% 0.156 275.9)
XYZ	xyz(23.0737, 18.9317, 66.0436)
Luminance	0.1893 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646FD6 #D6CB64

analogous

#64A8D6 #646FD6 #9264D6

triadic

#646FD6 #D6646F #6FD664

tetradic

#646FD6 #D664A8 #D6CB64 #64D692

square

#646FD6 #D664A8 #D6CB64 #64D692

split-complementary

#646FD6 #D69264 #A8D664

monochromatic

#283398 #3543C8 #646FD6 #949CE3 #C5C9F0

Accessibility & contrast

On white

4.39

#646FD6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.79

#646FD6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646FD6

4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646FD6	#FFFFFF	#000000	##000000
##646FD6	1.00	4.39	4.79	4.79
#FFFFFF	4.39	1.00	21.00	21.00
#000000	4.79	21.00	1.00	1.00
##000000	4.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F7DDA

Deuteranopia (green-blind)

#3174D4

Tritanopia (blue-blind)

#2E8698

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #646fd6;
/* rgb */ color: rgb(100, 111, 214);
/* oklch */ color: oklch(58.4% 0.156 275.9);

Tailwind

colors: {
  custom: {
    50: '#9898e3',
    500: '#646fd6',
    950: '#000000',
  },
}

SCSS

$custom: #646fd6;
$custom-light: #9898e3;
$custom-dark: #000000;

JSON

{
  "hex": "#646fd6",
  "rgb": {
    "r": 100,
    "g": 111,
    "b": 214
  },
  "hsl": {
    "h": 234.211,
    "s": 58.163,
    "l": 61.569
  },
  "oklch": {
    "l": 0.58373,
    "c": 0.15606,
    "h": 275.9
  },
  "luminance": 0.18933
}

Semantic roles & 50–950 ramp

primary

#646FD6

secondary

#E0DCB6

accent

#B620C6

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0E0D15

muted

#7E7E84

Preview Lab

Preview with #646FD6

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

Preview Lab → · Contrast checker → · Palette generator →