#646F33#646F33

#646F33 is a mid, moderate yellow-green. Relative luminance 0.143; OKLCH L 51.8% C 0.085 H 118.1°. Best body text is #FFFFFF at 5.44:1 contrast (WCAG AA passes).

Color values

HEX	#646F33
RGB	rgb(100, 111, 51)
HSL	hsl(71, 37%, 32%)
HSV	hsv(71, 54%, 44%)
CMYK	cmyk(9.9%, 0%, 54.1%, 56.5%)
CIE-LAB	lab(44.68, -14.00, 31.66)
CIE-LCH	lch(44.68, 34.62, 113.86°)
OKLab	oklab(51.83% -0.0399 0.0748)
OKLCH	oklch(51.83% 0.085 118.1)
XYZ	xyz(11.5376, 14.3173, 5.2870)
Luminance	0.1432 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#646F33 #3E336F

analogous

#6F5C33 #646F33 #466F33

triadic

#646F33 #33646F #6F3364

tetradic

#646F33 #336F5C #3E336F #6F3346

square

#646F33 #336F5C #3E336F #6F3346

split-complementary

#646F33 #33466F #5C336F

monochromatic

#181B0C #3E4520 #646F33 #8A9946 #A9B864

Accessibility & contrast

On white

5.44

#646F33 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.86

#646F33 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #646F33

5.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##646F33	#FFFFFF	#000000	##FFFFFF
##646F33	1.00	5.44	3.86	5.44
#FFFFFF	5.44	1.00	21.00	1.00
#000000	3.86	21.00	1.00	21.00
##FFFFFF	5.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#766A2D

Deuteranopia (green-blind)

#746A36

Tritanopia (blue-blind)

#696A61

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #646f33;
/* rgb */ color: rgb(100, 111, 51);
/* oklch */ color: oklch(51.8% 0.085 118.1);

Tailwind

colors: {
  custom: {
    50: '#91986c',
    500: '#646f33',
    950: '#000000',
  },
}

SCSS

$custom: #646f33;
$custom-light: #91986c;
$custom-dark: #000000;

JSON

{
  "hex": "#646f33",
  "rgb": {
    "r": 100,
    "g": 111,
    "b": 51
  },
  "hsl": {
    "h": 71,
    "s": 37.037,
    "l": 31.765
  },
  "oklch": {
    "l": 0.51828,
    "c": 0.08479,
    "h": 118.1
  },
  "luminance": 0.14317
}

Semantic roles & 50–950 ramp

primary

#646F33

secondary

#6A5EA0

accent

#5BCD70

background

#F9F9F6

surface

#F1F2EB

border

#CBCCC6

text

#0D0D07

muted

#7E7E7A

Preview Lab

Preview with #646F33

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

Preview Lab → · Contrast checker → · Palette generator →