#646FD5#646FD5

#646FD5 is a mid, vivid blue. Relative luminance 0.189; OKLCH L 58.3% C 0.155 H 275.9°. Best body text is #000000 at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#646FD5
RGB	rgb(100, 111, 213)
HSL	hsl(234, 57%, 61%)
HSV	hsv(234, 53%, 84%)
CMYK	cmyk(53.1%, 47.9%, 0%, 16.5%)
CIE-LAB	lab(50.55, 24.49, -53.99)
CIE-LCH	lch(50.55, 59.28, 294.40°)
OKLab	oklab(58.31% 0.0158 -0.1538)
OKLCH	oklch(58.31% 0.155 275.9)
XYZ	xyz(22.9464, 18.8808, 65.3731)
Luminance	0.1888 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646FD5 #D5CA64

analogous

#64A8D5 #646FD5 #9264D5

triadic

#646FD5 #D5646F #6FD564

tetradic

#646FD5 #D564A8 #D5CA64 #64D592

square

#646FD5 #D564A8 #D5CA64 #64D592

split-complementary

#646FD5 #D59264 #A8D564

monochromatic

#293396 #3644C6 #646FD5 #949CE2 #C4C8EF

Accessibility & contrast

On white

4.40

#646FD5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.78

#646FD5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646FD5

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646FD5	#FFFFFF	#000000	##000000
##646FD5	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)

#3F7DD9

Deuteranopia (green-blind)

#3274D3

Tritanopia (blue-blind)

#2F8598

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #646fd5;
/* rgb */ color: rgb(100, 111, 213);
/* oklch */ color: oklch(58.3% 0.155 275.9);

Tailwind

colors: {
  custom: {
    50: '#9898e2',
    500: '#646fd5',
    950: '#000000',
  },
}

SCSS

$custom: #646fd5;
$custom-light: #9898e2;
$custom-dark: #000000;

JSON

{
  "hex": "#646fd5",
  "rgb": {
    "r": 100,
    "g": 111,
    "b": 213
  },
  "hsl": {
    "h": 234.159,
    "s": 57.36,
    "l": 61.373
  },
  "oklch": {
    "l": 0.58308,
    "c": 0.15466,
    "h": 275.9
  },
  "luminance": 0.18882
}

Semantic roles & 50–950 ramp

primary

#646FD5

secondary

#E0DBB5

accent

#B521C5

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0E0D15

muted

#7E7E83

Preview Lab

Preview with #646FD5

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

Preview Lab → · Contrast checker → · Palette generator →