#646CD6#646CD6

#646CD6 is a mid, vivid blue. Relative luminance 0.183; OKLCH L 57.8% C 0.160 H 276.9°. Best body text is #000000 at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#646CD6
RGB	rgb(100, 108, 214)
HSL	hsl(236, 58%, 62%)
HSV	hsv(236, 53%, 84%)
CMYK	cmyk(53.3%, 49.5%, 0%, 16.1%)
CIE-LAB	lab(49.84, 26.64, -55.68)
CIE-LCH	lch(49.84, 61.73, 295.57°)
OKLab	oklab(57.8% 0.0192 -0.1589)
OKLCH	oklch(57.8% 0.16 276.9)
XYZ	xyz(22.7518, 18.2880, 65.9363)
Luminance	0.1829 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646CD6 #D6CE64

analogous

#64A5D6 #646CD6 #9564D6

triadic

#646CD6 #D6646C #6CD664

tetradic

#646CD6 #D664A5 #D6CE64 #64D695

square

#646CD6 #D664A5 #D6CE64 #64D695

split-complementary

#646CD6 #D69564 #A5D664

monochromatic

#283098 #353FC8 #646CD6 #949AE3 #C5C8F0

Accessibility & contrast

On white

4.51

#646CD6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.66

#646CD6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #646CD6

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646CD6	#FFFFFF	#000000	##000000
##646CD6	1.00	4.51	4.66	4.66
#FFFFFF	4.51	1.00	21.00	21.00
#000000	4.66	21.00	1.00	1.00
##000000	4.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#387BDA

Deuteranopia (green-blind)

#2972D4

Tritanopia (blue-blind)

#2F8397

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #646cd6;
/* rgb */ color: rgb(100, 108, 214);
/* oklch */ color: oklch(57.8% 0.160 276.9);

Tailwind

colors: {
  custom: {
    50: '#9896e3',
    500: '#646cd6',
    950: '#000000',
  },
}

SCSS

$custom: #646cd6;
$custom-light: #9896e3;
$custom-dark: #000000;

JSON

{
  "hex": "#646cd6",
  "rgb": {
    "r": 100,
    "g": 108,
    "b": 214
  },
  "hsl": {
    "h": 235.789,
    "s": 58.163,
    "l": 61.569
  },
  "oklch": {
    "l": 0.57796,
    "c": 0.16003,
    "h": 276.9
  },
  "luminance": 0.18289
}

Semantic roles & 50–950 ramp

primary

#646CD6

secondary

#E0DDB6

accent

#BA20C6

background

#F9F9FE

surface

#F2F1FC

border

#CCCBD5

text

#0E0D15

muted

#7E7E84

Preview Lab

Preview with #646CD6

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

Preview Lab → · Contrast checker → · Palette generator →