#646FAE#646FAE

#646FAE is a mid, moderate blue. Relative luminance 0.171; OKLCH L 56.0% C 0.099 H 275.2°. Best body text is #FFFFFF at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#646FAE
RGB	rgb(100, 111, 174)
HSL	hsl(231, 31%, 54%)
HSV	hsv(231, 43%, 68%)
CMYK	cmyk(42.5%, 36.2%, 0%, 31.8%)
CIE-LAB	lab(48.43, 12.47, -34.93)
CIE-LCH	lch(48.43, 37.08, 289.64°)
OKLab	oklab(56% 0.009 -0.0981)
OKLCH	oklch(56% 0.099 275.2)
XYZ	xyz(18.5776, 17.1333, 42.3644)
Luminance	0.1713 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646FAE #AEA364

analogous

#6494AE #646FAE #7E64AE

triadic

#646FAE #AE646F #6FAE64

tetradic

#646FAE #AE6494 #AEA364 #64AE7E

square

#646FAE #AE6494 #AEA364 #64AE7E

split-complementary

#646FAE #AE7E64 #94AE64

monochromatic

#343B64 #49538C #646FAE #8C94C3 #B4BAD8

Accessibility & contrast

On white

4.74

#646FAE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.43

#646FAE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646FAE

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646FAE	#FFFFFF	#000000	##FFFFFF
##646FAE	1.00	4.74	4.43	4.74
#FFFFFF	4.74	1.00	21.00	1.00
#000000	4.43	21.00	1.00	21.00
##FFFFFF	4.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5976B1

Deuteranopia (green-blind)

#5370AD

Tritanopia (blue-blind)

#4C7C86

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #646fae;
/* rgb */ color: rgb(100, 111, 174);
/* oklch */ color: oklch(56.0% 0.099 275.2);

Tailwind

colors: {
  custom: {
    50: '#9398c6',
    500: '#646fae',
    950: '#000000',
  },
}

SCSS

$custom: #646fae;
$custom-light: #9398c6;
$custom-dark: #000000;

JSON

{
  "hex": "#646fae",
  "rgb": {
    "r": 100,
    "g": 111,
    "b": 174
  },
  "hsl": {
    "h": 231.081,
    "s": 31.356,
    "l": 53.725
  },
  "oklch": {
    "l": 0.56,
    "c": 0.09851,
    "h": 275.2
  },
  "luminance": 0.17134
}

Semantic roles & 50–950 ramp

primary

#646FAE

secondary

#C7C2A7

accent

#B860C8

background

#F9F9FC

surface

#F2F2F8

border

#CCCCD1

text

#0D0D13

muted

#7E7E82

Preview Lab

Preview with #646FAE

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

Preview Lab → · Contrast checker → · Palette generator →