#646DAE#646DAE

#646DAE is a mid, moderate blue. Relative luminance 0.167; OKLCH L 55.6% C 0.101 H 276.6°. Best body text is #FFFFFF at 4.84:1 contrast (WCAG AA passes).

Color values

HEX	#646DAE
RGB	rgb(100, 109, 174)
HSL	hsl(233, 31%, 54%)
HSV	hsv(233, 43%, 68%)
CMYK	cmyk(42.5%, 37.4%, 0%, 31.8%)
CIE-LAB	lab(47.88, 13.69, -35.78)
CIE-LCH	lch(47.88, 38.31, 290.94°)
OKLab	oklab(55.58% 0.0116 -0.1006)
OKLCH	oklch(55.58% 0.101 276.6)
XYZ	xyz(18.3619, 16.7017, 42.2924)
Luminance	0.1670 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646DAE #AEA564

analogous

#6492AE #646DAE #8064AE

triadic

#646DAE #AE646D #6DAE64

tetradic

#646DAE #AE6492 #AEA564 #64AE80

square

#646DAE #AE6492 #AEA564 #64AE80

split-complementary

#646DAE #AE8064 #92AE64

monochromatic

#343A64 #49518C #646DAE #8C93C3 #B4B9D8

Accessibility & contrast

On white

4.84

#646DAE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.34

#646DAE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646DAE

4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646DAE	#FFFFFF	#000000	##FFFFFF
##646DAE	1.00	4.84	4.34	4.84
#FFFFFF	4.84	1.00	21.00	1.00
#000000	4.34	21.00	1.00	21.00
##FFFFFF	4.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5675B1

Deuteranopia (green-blind)

#516FAC

Tritanopia (blue-blind)

#4C7A85

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #646dae;
/* rgb */ color: rgb(100, 109, 174);
/* oklch */ color: oklch(55.6% 0.101 276.6);

Tailwind

colors: {
  custom: {
    50: '#9396c6',
    500: '#646dae',
    950: '#000000',
  },
}

SCSS

$custom: #646dae;
$custom-light: #9396c6;
$custom-dark: #000000;

JSON

{
  "hex": "#646dae",
  "rgb": {
    "r": 100,
    "g": 109,
    "b": 174
  },
  "hsl": {
    "h": 232.703,
    "s": 31.356,
    "l": 53.725
  },
  "oklch": {
    "l": 0.5558,
    "c": 0.10127,
    "h": 276.6
  },
  "luminance": 0.16703
}

Semantic roles & 50–950 ramp

primary

#646DAE

secondary

#C7C3A7

accent

#BB60C8

background

#F9F9FC

surface

#F2F2F8

border

#CCCCD1

text

#0D0D13

muted

#7E7E82

Preview Lab

Preview with #646DAE

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

Preview Lab → · Contrast checker → · Palette generator →