#646648#646648

#646648 is a mid, muted yellow. Relative luminance 0.127; OKLCH L 50.0% C 0.045 H 111.1°. Best body text is #FFFFFF at 5.94:1 contrast (WCAG AA passes).

Color values

HEX	#646648
RGB	rgb(100, 102, 72)
HSL	hsl(64, 17%, 34%)
HSV	hsv(64, 29%, 40%)
CMYK	cmyk(2%, 0%, 29.4%, 60%)
CIE-LAB	lab(42.28, -6.24, 16.75)
CIE-LCH	lch(42.28, 17.87, 110.42°)
OKLab	oklab(50.02% -0.0162 0.042)
OKLCH	oklch(50.02% 0.045 111.1)
XYZ	xyz(11.1766, 12.6801, 7.9884)
Luminance	0.1268 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646648 #4A4866

analogous

#665948 #646648 #556648

triadic

#646648 #486466 #664864

tetradic

#646648 #486659 #4A4866 #664855

square

#646648 #486659 #4A4866 #664855

split-complementary

#646648 #485566 #594866

monochromatic

#1E1E15 #41422F #646648 #878A61 #A4A782

Accessibility & contrast

On white

5.94

#646648 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.54

#646648 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646648

5.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646648	#FFFFFF	#000000	##FFFFFF
##646648	1.00	5.94	3.54	5.94
#FFFFFF	5.94	1.00	21.00	1.00
#000000	3.54	21.00	1.00	21.00
##FFFFFF	5.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B6346

Deuteranopia (green-blind)

#6B6449

Tritanopia (blue-blind)

#68625E

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #646648;
/* rgb */ color: rgb(100, 102, 72);
/* oklch */ color: oklch(50.0% 0.045 111.1);

Tailwind

colors: {
  custom: {
    50: '#90917b',
    500: '#646648',
    950: '#000000',
  },
}

SCSS

$custom: #646648;
$custom-light: #90917b;
$custom-dark: #000000;

JSON

{
  "hex": "#646648",
  "rgb": {
    "r": 100,
    "g": 102,
    "b": 72
  },
  "hsl": {
    "h": 64,
    "s": 17.241,
    "l": 34.118
  },
  "oklch": {
    "l": 0.50018,
    "c": 0.04507,
    "h": 111.1
  },
  "luminance": 0.1268
}

Semantic roles & 50–950 ramp

primary

#646648

secondary

#787694

accent

#6EBA73

background

#F8F8F7

surface

#F0F0ED

border

#CBCBC8

text

#0C0C09

muted

#7D7D7B

Preview Lab

Preview with #646648

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

Preview Lab → · Contrast checker → · Palette generator →