#646D97#646D97

#646D97 is a mid, moderate blue. Relative luminance 0.159; OKLCH L 54.4% C 0.067 H 274.7°. Best body text is #FFFFFF at 5.03:1 contrast (WCAG AA passes).

Color values

HEX	#646D97
RGB	rgb(100, 109, 151)
HSL	hsl(229, 20%, 49%)
HSV	hsv(229, 34%, 59%)
CMYK	cmyk(33.8%, 27.8%, 0%, 40.8%)
CIE-LAB	lab(46.82, 7.08, -23.94)
CIE-LCH	lch(46.82, 24.96, 286.47°)
OKLab	oklab(54.41% 0.0054 -0.0664)
OKLCH	oklch(54.41% 0.067 274.7)
XYZ	xyz(16.3085, 15.8804, 31.4781)
Luminance	0.1588 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646D97 #978E64

analogous

#648797 #646D97 #756497

triadic

#646D97 #97646D #6D9764

tetradic

#646D97 #976487 #978E64 #649775

square

#646D97 #976487 #978E64 #649775

split-complementary

#646D97 #977564 #879764

monochromatic

#33384D #4C5272 #646D97 #888FB0 #ADB2C9

Accessibility & contrast

On white

5.03

#646D97 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.18

#646D97 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646D97

5.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646D97	#FFFFFF	#000000	##FFFFFF
##646D97	1.00	5.03	4.18	5.03
#FFFFFF	5.03	1.00	21.00	1.00
#000000	4.18	21.00	1.00	21.00
##FFFFFF	5.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#607199

Deuteranopia (green-blind)

#5C6D96

Tritanopia (blue-blind)

#56757C

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #646d97;
/* rgb */ color: rgb(100, 109, 151);
/* oklch */ color: oklch(54.4% 0.067 274.7);

Tailwind

colors: {
  custom: {
    50: '#9196b5',
    500: '#646d97',
    950: '#000000',
  },
}

SCSS

$custom: #646d97;
$custom-light: #9196b5;
$custom-dark: #000000;

JSON

{
  "hex": "#646d97",
  "rgb": {
    "r": 100,
    "g": 109,
    "b": 151
  },
  "hsl": {
    "h": 229.412,
    "s": 20.319,
    "l": 49.216
  },
  "oklch": {
    "l": 0.54408,
    "c": 0.06664,
    "h": 274.7
  },
  "luminance": 0.15881
}

Semantic roles & 50–950 ramp

primary

#646D97

secondary

#B7B3A0

accent

#AE6BBD

background

#F9F9FB

surface

#F1F2F6

border

#CBCCD0

text

#0D0D11

muted

#7E7E80

Preview Lab

Preview with #646D97

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

Preview Lab → · Contrast checker → · Palette generator →