#646338#646338

#646338 is a mid, moderate yellow. Relative luminance 0.119; OKLCH L 49.0% C 0.062 H 107.3°. Best body text is #FFFFFF at 6.21:1 contrast (WCAG AA passes).

Color values

HEX	#646338
RGB	rgb(100, 99, 56)
HSL	hsl(59, 28%, 31%)
HSV	hsv(59, 44%, 39%)
CMYK	cmyk(0%, 1%, 44%, 60.8%)
CIE-LAB	lab(41.09, -6.67, 24.53)
CIE-LCH	lch(41.09, 25.42, 105.22°)
OKLab	oklab(48.98% -0.0185 0.0594)
OKLCH	oklch(48.98% 0.062 107.3)
XYZ	xyz(10.4314, 11.9188, 5.4917)
Luminance	0.1192 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646338 #383964

analogous

#644D38 #646338 #4F6438

triadic

#646338 #386463 #633864

tetradic

#646338 #38644D #383964 #64384F

square

#646338 #38644D #383964 #64384F

split-complementary

#646338 #384F64 #4D3864

monochromatic

#16150C #3D3C22 #646338 #8B8A4E #ACAA6B

Accessibility & contrast

On white

6.21

#646338 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.38

#646338 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646338

6.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646338	#FFFFFF	#000000	##FFFFFF
##646338	1.00	6.21	3.38	6.21
#FFFFFF	6.21	1.00	21.00	1.00
#000000	3.38	21.00	1.00	21.00
##FFFFFF	6.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#696035

Deuteranopia (green-blind)

#6A623A

Tritanopia (blue-blind)

#6A5E59

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #646338;
/* rgb */ color: rgb(100, 99, 56);
/* oklch */ color: oklch(49.0% 0.062 107.3);

Tailwind

colors: {
  custom: {
    50: '#918f6f',
    500: '#646338',
    950: '#000000',
  },
}

SCSS

$custom: #646338;
$custom-light: #918f6f;
$custom-dark: #000000;

JSON

{
  "hex": "#646338",
  "rgb": {
    "r": 100,
    "g": 99,
    "b": 56
  },
  "hsl": {
    "h": 58.636,
    "s": 28.205,
    "l": 30.588
  },
  "oklch": {
    "l": 0.48979,
    "c": 0.06226,
    "h": 107.3
  },
  "luminance": 0.11919
}

Semantic roles & 50–950 ramp

primary

#646338

secondary

#636594

accent

#66C563

background

#F9F8F6

surface

#F1F0EC

border

#CBCBC7

text

#0D0C07

muted

#7E7D7A

Preview Lab

Preview with #646338

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

Preview Lab → · Contrast checker → · Palette generator →