#646F2F#646F2F

#646F2F is a mid, moderate yellow-green. Relative luminance 0.143; OKLCH L 51.8% C 0.089 H 117.7°. Best body text is #FFFFFF at 5.45:1 contrast (WCAG AA passes).

Color values

HEX	#646F2F
RGB	rgb(100, 111, 47)
HSL	hsl(70, 41%, 31%)
HSV	hsv(70, 58%, 44%)
CMYK	cmyk(9.9%, 0%, 57.7%, 56.5%)
CIE-LAB	lab(44.64, -14.40, 33.69)
CIE-LCH	lch(44.64, 36.64, 113.15°)
OKLab	oklab(51.78% -0.0414 0.0788)
OKLCH	oklch(51.78% 0.089 117.7)
XYZ	xyz(11.4532, 14.2835, 4.8424)
Luminance	0.1428 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646F2F #3A2F6F

analogous

#6F5A2F #646F2F #446F2F

triadic

#646F2F #2F646F #6F2F64

tetradic

#646F2F #2F6F5A #3A2F6F #6F2F44

square

#646F2F #2F6F5A #3A2F6F #6F2F44

split-complementary

#646F2F #2F446F #5A2F6F

monochromatic

#17190B #3D441D #646F2F #8B9A41 #ABBB5E

Accessibility & contrast

On white

5.45

#646F2F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.86

#646F2F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646F2F

5.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646F2F	#FFFFFF	#000000	##FFFFFF
##646F2F	1.00	5.45	3.86	5.45
#FFFFFF	5.45	1.00	21.00	1.00
#000000	3.86	21.00	1.00	21.00
##FFFFFF	5.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#766929

Deuteranopia (green-blind)

#756A33

Tritanopia (blue-blind)

#6A6961

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #646f2f;
/* rgb */ color: rgb(100, 111, 47);
/* oklch */ color: oklch(51.8% 0.089 117.7);

Tailwind

colors: {
  custom: {
    50: '#92986a',
    500: '#646f2f',
    950: '#000000',
  },
}

SCSS

$custom: #646f2f;
$custom-light: #92986a;
$custom-dark: #000000;

JSON

{
  "hex": "#646f2f",
  "rgb": {
    "r": 100,
    "g": 111,
    "b": 47
  },
  "hsl": {
    "h": 70.313,
    "s": 40.506,
    "l": 30.98
  },
  "oklch": {
    "l": 0.51775,
    "c": 0.08901,
    "h": 117.7
  },
  "luminance": 0.14283
}

Semantic roles & 50–950 ramp

primary

#646F2F

secondary

#6659A0

accent

#57D06C

background

#F9F9F6

surface

#F1F2EB

border

#CBCCC6

text

#0D0D06

muted

#7E7E7A

Preview Lab

Preview with #646F2F

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

Preview Lab → · Contrast checker → · Palette generator →