#3F510F#3F510F

#3F510F is a dark, moderate yellow-green. Relative luminance 0.070; OKLCH L 40.6% C 0.091 H 124.0°. Best body text is #FFFFFF at 8.77:1 contrast (WCAG AA passes).

Color values

HEX	#3F510F
RGB	rgb(63, 81, 15)
HSL	hsl(76, 69%, 19%)
HSV	hsv(76, 81%, 32%)
CMYK	cmyk(22.2%, 0%, 81.5%, 68.2%)
CIE-LAB	lab(31.75, -17.51, 34.06)
CIE-LCH	lch(31.75, 38.30, 117.20°)
OKLab	oklab(40.57% -0.051 0.0755)
OKLCH	oklch(40.57% 0.091 124)
XYZ	xyz(5.0786, 6.9761, 1.5308)
Luminance	0.0698 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F510F #210F51

analogous

#51420F #3F510F #1E510F

triadic

#3F510F #0F3F51 #510F3F

tetradic

#3F510F #0F5142 #210F51 #510F1E

square

#3F510F #0F5142 #210F51 #510F1E

split-complementary

#3F510F #0F1E51 #420F51

monochromatic

#141A05 #171D05 #3F510F #678519 #8FB822

Accessibility & contrast

On white

8.77

#3F510F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#3F510F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F510F

8.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F510F	#FFFFFF	#000000	##FFFFFF
##3F510F	1.00	8.77	2.40	8.77
#FFFFFF	8.77	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#564B03

Deuteranopia (green-blind)

#544B15

Tritanopia (blue-blind)

#424D44

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3f510f;
/* rgb */ color: rgb(63, 81, 15);
/* oklch */ color: oklch(40.6% 0.091 124.0);

Tailwind

colors: {
  custom: {
    50: '#768253',
    500: '#3f510f',
    950: '#000000',
  },
}

SCSS

$custom: #3f510f;
$custom-light: #768253;
$custom-dark: #000000;

JSON

{
  "hex": "#3f510f",
  "rgb": {
    "r": 63,
    "g": 81,
    "b": 15
  },
  "hsl": {
    "h": 76.364,
    "s": 68.75,
    "l": 18.824
  },
  "oklch": {
    "l": 0.40571,
    "c": 0.09114,
    "h": 124
  },
  "luminance": 0.06976
}

Semantic roles & 50–950 ramp

primary

#3F510F

secondary

#49318B

accent

#3CEC6C

background

#F7F7F4

surface

#EDEEE7

border

#C8C9C3

text

#090A03

muted

#7B7C78

Preview Lab

Preview with #3F510F

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

Preview Lab → · Contrast checker → · Palette generator →