#4F643B#4F643B

#4F643B is a mid, moderate yellow-green. Relative luminance 0.111; OKLCH L 47.5% C 0.067 H 130.7°. Best body text is #FFFFFF at 6.52:1 contrast (WCAG AA passes).

Color values

HEX	#4F643B
RGB	rgb(79, 100, 59)
HSL	hsl(91, 26%, 31%)
HSV	hsv(91, 41%, 39%)
CMYK	cmyk(21%, 0%, 41%, 60.8%)
CIE-LAB	lab(39.74, -16.02, 20.73)
CIE-LCH	lch(39.74, 26.20, 127.70°)
OKLab	oklab(47.49% -0.0439 0.0511)
OKLCH	oklch(47.49% 0.067 130.7)
XYZ	xyz(8.5709, 11.0922, 5.8263)
Luminance	0.1109 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F643B #503B64

analogous

#63643B #4F643B #3B643B

triadic

#4F643B #3B4F64 #643B4F

tetradic

#4F643B #3B6364 #503B64 #643B3B

square

#4F643B #3B6364 #503B64 #643B3B

split-complementary

#4F643B #3B3B64 #643B63

monochromatic

#12170E #313E24 #4F643B #6D8A52 #8CAA6F

Accessibility & contrast

On white

6.52

#4F643B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.22

#4F643B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F643B

6.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F643B	#FFFFFF	#000000	##FFFFFF
##4F643B	1.00	6.52	3.22	6.52
#FFFFFF	6.52	1.00	21.00	1.00
#000000	3.22	21.00	1.00	21.00
##FFFFFF	6.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#685F38

Deuteranopia (green-blind)

#645D3D

Tritanopia (blue-blind)

#50615A

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #4f643b;
/* rgb */ color: rgb(79, 100, 59);
/* oklch */ color: oklch(47.5% 0.067 130.7);

Tailwind

colors: {
  custom: {
    50: '#819071',
    500: '#4f643b',
    950: '#000000',
  },
}

SCSS

$custom: #4f643b;
$custom-light: #819071;
$custom-dark: #000000;

JSON

{
  "hex": "#4f643b",
  "rgb": {
    "r": 79,
    "g": 100,
    "b": 59
  },
  "hsl": {
    "h": 90.732,
    "s": 25.786,
    "l": 31.176
  },
  "oklch": {
    "l": 0.47487,
    "c": 0.06734,
    "h": 130.7
  },
  "luminance": 0.11092
}

Semantic roles & 50–950 ramp

primary

#4F643B

secondary

#7E6794

accent

#66C295

background

#F7F8F6

surface

#EEF0EC

border

#C9CBC7

text

#0A0C07

muted

#7C7D7A

Preview Lab

Preview with #4F643B

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

Preview Lab → · Contrast checker → · Palette generator →