#3F511F#3F511F

#3F511F is a dark, moderate yellow-green. Relative luminance 0.070; OKLCH L 40.7% C 0.077 H 126.2°. Best body text is #FFFFFF at 8.72:1 contrast (WCAG AA passes).

Color values

HEX	#3F511F
RGB	rgb(63, 81, 31)
HSL	hsl(82, 45%, 22%)
HSV	hsv(82, 62%, 32%)
CMYK	cmyk(22.2%, 0%, 61.7%, 68.2%)
CIE-LAB	lab(31.90, -16.17, 26.67)
CIE-LCH	lch(31.90, 31.19, 121.22°)
OKLab	oklab(40.74% -0.0457 0.0624)
OKLCH	oklch(40.74% 0.077 126.2)
XYZ	xyz(5.2396, 7.0405, 2.3790)
Luminance	0.0704 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F511F #311F51

analogous

#514A1F #3F511F #26511F

triadic

#3F511F #1F3F51 #511F3F

tetradic

#3F511F #1F514A #311F51 #511F26

square

#3F511F #1F514A #311F51 #511F26

split-complementary

#3F511F #1F2651 #4A1F51

monochromatic

#111608 #1D250E #3F511F #617D30 #84AA41

Accessibility & contrast

On white

8.72

#3F511F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#3F511F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F511F

8.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F511F	#FFFFFF	#000000	##FFFFFF
##3F511F	1.00	8.72	2.41	8.72
#FFFFFF	8.72	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554C1A

Deuteranopia (green-blind)

#534B22

Tritanopia (blue-blind)

#414D46

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3f511f;
/* rgb */ color: rgb(63, 81, 31);
/* oklch */ color: oklch(40.7% 0.077 126.2);

Tailwind

colors: {
  custom: {
    50: '#75825c',
    500: '#3f511f',
    950: '#000000',
  },
}

SCSS

$custom: #3f511f;
$custom-light: #75825c;
$custom-dark: #000000;

JSON

{
  "hex": "#3f511f",
  "rgb": {
    "r": 63,
    "g": 81,
    "b": 31
  },
  "hsl": {
    "h": 81.6,
    "s": 44.643,
    "l": 21.961
  },
  "oklch": {
    "l": 0.40736,
    "c": 0.07735,
    "h": 126.2
  },
  "luminance": 0.07041
}

Semantic roles & 50–950 ramp

primary

#3F511F

secondary

#5D4686

accent

#53D482

background

#F7F7F5

surface

#EDEEE9

border

#C8C9C5

text

#080A04

muted

#7B7C79

Preview Lab

Preview with #3F511F

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

Preview Lab → · Contrast checker → · Palette generator →