#646CD2#646CD2

#646CD2 is a mid, vivid blue. Relative luminance 0.181; OKLCH L 57.5% C 0.154 H 277.0°. Best body text is #000000 at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#646CD2
RGB	rgb(100, 108, 210)
HSL	hsl(236, 55%, 61%)
HSV	hsv(236, 52%, 82%)
CMYK	cmyk(52.4%, 48.6%, 0%, 17.6%)
CIE-LAB	lab(49.60, 25.38, -53.80)
CIE-LCH	lch(49.60, 59.48, 295.26°)
OKLab	oklab(57.53% 0.0188 -0.1533)
OKLCH	oklch(57.53% 0.154 277)
XYZ	xyz(22.2473, 18.0862, 63.2790)
Luminance	0.1809 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646CD2 #D2CA64

analogous

#64A3D2 #646CD2 #9364D2

triadic

#646CD2 #D2646C #6CD264

tetradic

#646CD2 #D264A3 #D2CA64 #64D293

square

#646CD2 #D264A3 #D2CA64 #64D293

split-complementary

#646CD2 #D29364 #A3D264

monochromatic

#2A3291 #3842C1 #646CD2 #9399E0 #C3C6EE

Accessibility & contrast

On white

4.55

#646CD2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.62

#646CD2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646CD2

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646CD2	#FFFFFF	#000000	##000000
##646CD2	1.00	4.55	4.62	4.62
#FFFFFF	4.55	1.00	21.00	21.00
#000000	4.62	21.00	1.00	1.00
##000000	4.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C7BD6

Deuteranopia (green-blind)

#2F72D0

Tritanopia (blue-blind)

#338295

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #646cd2;
/* rgb */ color: rgb(100, 108, 210);
/* oklch */ color: oklch(57.5% 0.154 277.0);

Tailwind

colors: {
  custom: {
    50: '#9896e0',
    500: '#646cd2',
    950: '#000000',
  },
}

SCSS

$custom: #646cd2;
$custom-light: #9896e0;
$custom-dark: #000000;

JSON

{
  "hex": "#646cd2",
  "rgb": {
    "r": 100,
    "g": 108,
    "b": 210
  },
  "hsl": {
    "h": 235.636,
    "s": 55,
    "l": 60.784
  },
  "oklch": {
    "l": 0.57534,
    "c": 0.15448,
    "h": 277
  },
  "luminance": 0.18088
}

Semantic roles & 50–950 ramp

primary

#646CD2

secondary

#DEDBB4

accent

#B723C3

background

#F9F9FD

surface

#F2F1FB

border

#CCCBD4

text

#0E0D15

muted

#7E7E83

Preview Lab

Preview with #646CD2

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

Preview Lab → · Contrast checker → · Palette generator →