#646FD2#646FD2

#646FD2 is a mid, vivid blue. Relative luminance 0.187; OKLCH L 58.1% C 0.150 H 275.9°. Best body text is #000000 at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#646FD2
RGB	rgb(100, 111, 210)
HSL	hsl(234, 55%, 61%)
HSV	hsv(234, 52%, 82%)
CMYK	cmyk(52.4%, 47.1%, 0%, 17.6%)
CIE-LAB	lab(50.37, 23.54, -52.57)
CIE-LCH	lch(50.37, 57.60, 294.13°)
OKLab	oklab(58.12% 0.0155 -0.1497)
OKLCH	oklch(58.12% 0.15 275.9)
XYZ	xyz(22.5691, 18.7299, 63.3862)
Luminance	0.1873 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646FD2 #D2C764

analogous

#64A6D2 #646FD2 #9064D2

triadic

#646FD2 #D2646F #6FD264

tetradic

#646FD2 #D264A6 #D2C764 #64D290

square

#646FD2 #D264A6 #D2C764 #64D290

split-complementary

#646FD2 #D29064 #A6D264

monochromatic

#2A3591 #3846C1 #646FD2 #939BE0 #C3C7EE

Accessibility & contrast

On white

4.42

#646FD2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.75

#646FD2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646FD2

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646FD2	#FFFFFF	#000000	##000000
##646FD2	1.00	4.42	4.75	4.75
#FFFFFF	4.42	1.00	21.00	21.00
#000000	4.75	21.00	1.00	1.00
##000000	4.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#427DD6

Deuteranopia (green-blind)

#3674D0

Tritanopia (blue-blind)

#338596

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #646fd2;
/* rgb */ color: rgb(100, 111, 210);
/* oklch */ color: oklch(58.1% 0.150 275.9);

Tailwind

colors: {
  custom: {
    50: '#9798e0',
    500: '#646fd2',
    950: '#000000',
  },
}

SCSS

$custom: #646fd2;
$custom-light: #9798e0;
$custom-dark: #000000;

JSON

{
  "hex": "#646fd2",
  "rgb": {
    "r": 100,
    "g": 111,
    "b": 210
  },
  "hsl": {
    "h": 234,
    "s": 55,
    "l": 60.784
  },
  "oklch": {
    "l": 0.58116,
    "c": 0.15048,
    "h": 275.9
  },
  "luminance": 0.18731
}

Semantic roles & 50–950 ramp

primary

#646FD2

secondary

#DEDAB4

accent

#B323C3

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0E0D15

muted

#7E7E83

Preview Lab

Preview with #646FD2

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

Preview Lab → · Contrast checker → · Palette generator →