#3F510E#3F510E

#3F510E is a dark, moderate yellow-green. Relative luminance 0.070; OKLCH L 40.6% C 0.092 H 123.9°. Best body text is #FFFFFF at 8.77:1 contrast (WCAG AA passes).

Color values

HEX	#3F510E
RGB	rgb(63, 81, 14)
HSL	hsl(76, 71%, 19%)
HSV	hsv(76, 83%, 32%)
CMYK	cmyk(22.2%, 0%, 82.7%, 68.2%)
CIE-LAB	lab(31.75, -17.56, 34.44)
CIE-LCH	lch(31.75, 38.66, 117.02°)
OKLab	oklab(40.56% -0.0512 0.0762)
OKLCH	oklch(40.56% 0.092 123.9)
XYZ	xyz(5.0717, 6.9733, 1.4942)
Luminance	0.0697 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F510E #200E51

analogous

#51410E #3F510E #1D510E

triadic

#3F510E #0E3F51 #510E3F

tetradic

#3F510E #0E5141 #200E51 #510E1D

square

#3F510E #0E5141 #200E51 #510E1D

split-complementary

#3F510E #0E1D51 #410E51

monochromatic

#141A05 #161D05 #3F510E #688517 #90B920

Accessibility & contrast

On white

8.77

#3F510E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#3F510E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F510E

8.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F510E	#FFFFFF	#000000	##FFFFFF
##3F510E	1.00	8.77	2.39	8.77
#FFFFFF	8.77	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#564B02

Deuteranopia (green-blind)

#544B14

Tritanopia (blue-blind)

#434D44

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3f510e;
/* rgb */ color: rgb(63, 81, 14);
/* oklch */ color: oklch(40.6% 0.092 123.9);

Tailwind

colors: {
  custom: {
    50: '#778253',
    500: '#3f510e',
    950: '#000000',
  },
}

SCSS

$custom: #3f510e;
$custom-light: #778253;
$custom-dark: #000000;

JSON

{
  "hex": "#3f510e",
  "rgb": {
    "r": 63,
    "g": 81,
    "b": 14
  },
  "hsl": {
    "h": 76.119,
    "s": 70.526,
    "l": 18.627
  },
  "oklch": {
    "l": 0.40564,
    "c": 0.09179,
    "h": 123.9
  },
  "luminance": 0.06973
}

Semantic roles & 50–950 ramp

primary

#3F510E

secondary

#482F8C

accent

#3AED6B

background

#F7F7F4

surface

#EDEEE7

border

#C8C9C3

text

#090A02

muted

#7B7C78

Preview Lab

Preview with #3F510E

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

Preview Lab → · Contrast checker → · Palette generator →