#3F540F#3F540F

#3F540F is a dark, moderate yellow-green. Relative luminance 0.074; OKLCH L 41.4% C 0.095 H 125.5°. Best body text is #FFFFFF at 8.45:1 contrast (WCAG AA passes).

Color values

HEX	#3F540F
RGB	rgb(63, 84, 15)
HSL	hsl(78, 70%, 19%)
HSV	hsv(78, 82%, 33%)
CMYK	cmyk(25%, 0%, 82.1%, 67.1%)
CIE-LAB	lab(32.77, -19.12, 35.03)
CIE-LCH	lch(32.77, 39.91, 118.62°)
OKLab	oklab(41.4% -0.0554 0.0776)
OKLCH	oklch(41.4% 0.095 125.5)
XYZ	xyz(5.3065, 7.4318, 1.6068)
Luminance	0.0743 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F540F #240F54

analogous

#54470F #3F540F #1D540F

triadic

#3F540F #0F3F54 #540F3F

tetradic

#3F540F #0F5447 #240F54 #540F1D

square

#3F540F #0F5447 #240F54 #540F1D

split-complementary

#3F540F #0F1D54 #470F54

monochromatic

#131A05 #182006 #3F540F #668818 #8DBC22

Accessibility & contrast

On white

8.45

#3F540F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#3F540F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F540F

8.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F540F	#FFFFFF	#000000	##FFFFFF
##3F540F	1.00	8.45	2.49	8.45
#FFFFFF	8.45	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#594E02

Deuteranopia (green-blind)

#564D16

Tritanopia (blue-blind)

#425047

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3f540f;
/* rgb */ color: rgb(63, 84, 15);
/* oklch */ color: oklch(41.4% 0.095 125.5);

Tailwind

colors: {
  custom: {
    50: '#778454',
    500: '#3f540f',
    950: '#000000',
  },
}

SCSS

$custom: #3f540f;
$custom-light: #778454;
$custom-dark: #000000;

JSON

{
  "hex": "#3f540f",
  "rgb": {
    "r": 63,
    "g": 84,
    "b": 15
  },
  "hsl": {
    "h": 78.261,
    "s": 69.697,
    "l": 19.412
  },
  "oklch": {
    "l": 0.41395,
    "c": 0.09534,
    "h": 125.5
  },
  "luminance": 0.07432
}

Semantic roles & 50–950 ramp

primary

#3F540F

secondary

#4D318E

accent

#3BED71

background

#F7F8F5

surface

#EDEFE8

border

#C8CAC4

text

#090A03

muted

#7B7C78

Preview Lab

Preview with #3F540F

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

Preview Lab → · Contrast checker → · Palette generator →