#646828#646828

#646828 is a mid, moderate yellow. Relative luminance 0.128; OKLCH L 50.0% C 0.087 H 112.4°. Best body text is #FFFFFF at 5.91:1 contrast (WCAG AA passes).

Color values

HEX	#646828
RGB	rgb(100, 104, 40)
HSL	hsl(64, 44%, 28%)
HSV	hsv(64, 62%, 41%)
CMYK	cmyk(3.8%, 0%, 61.5%, 59.2%)
CIE-LAB	lab(42.40, -11.15, 34.70)
CIE-LCH	lch(42.40, 36.45, 107.82°)
OKLab	oklab(49.96% -0.0331 0.0801)
OKLCH	oklch(49.96% 0.087 112.4)
XYZ	xyz(10.5891, 12.7634, 3.9128)
Luminance	0.1276 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646828 #2C2868

analogous

#684C28 #646828 #446828

triadic

#646828 #286468 #682864

tetradic

#646828 #28684C #2C2868 #682844

square

#646828 #28684C #2C2868 #682844

split-complementary

#646828 #284468 #4C2868

monochromatic

#151609 #393C17 #646828 #8E9439 #B5BB4F

Accessibility & contrast

On white

5.91

#646828 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.55

#646828 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646828

5.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646828	#FFFFFF	#000000	##FFFFFF
##646828	1.00	5.91	3.55	5.91
#FFFFFF	5.91	1.00	21.00	1.00
#000000	3.55	21.00	1.00	21.00
##FFFFFF	5.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#706321

Deuteranopia (green-blind)

#70652C

Tritanopia (blue-blind)

#6B625A

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #646828;
/* rgb */ color: rgb(100, 104, 40);
/* oklch */ color: oklch(50.0% 0.087 112.4);

Tailwind

colors: {
  custom: {
    50: '#929365',
    500: '#646828',
    950: '#000000',
  },
}

SCSS

$custom: #646828;
$custom-light: #929365;
$custom-dark: #000000;

JSON

{
  "hex": "#646828",
  "rgb": {
    "r": 100,
    "g": 104,
    "b": 40
  },
  "hsl": {
    "h": 63.75,
    "s": 44.444,
    "l": 28.235
  },
  "oklch": {
    "l": 0.49963,
    "c": 0.08661,
    "h": 112.4
  },
  "luminance": 0.12763
}

Semantic roles & 50–950 ramp

primary

#646828

secondary

#56519B

accent

#54D45C

background

#F9F9F6

surface

#F1F1EB

border

#CBCBC6

text

#0D0D06

muted

#7E7E7A

Preview Lab

Preview with #646828

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

Preview Lab → · Contrast checker → · Palette generator →