#3F510D#3F510D

#3F510D 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	#3F510D
RGB	rgb(63, 81, 13)
HSL	hsl(76, 72%, 18%)
HSV	hsv(76, 84%, 32%)
CMYK	cmyk(22.2%, 0%, 84%, 68.2%)
CIE-LAB	lab(31.74, -17.62, 34.80)
CIE-LCH	lch(31.74, 39.01, 116.85°)
OKLab	oklab(40.56% -0.0515 0.0767)
OKLCH	oklch(40.56% 0.092 123.9)
XYZ	xyz(5.0650, 6.9706, 1.4593)
Luminance	0.0697 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F510D #1F0D51

analogous

#51410D #3F510D #1D510D

triadic

#3F510D #0D3F51 #510D3F

tetradic

#3F510D #0D5141 #1F0D51 #510D1D

square

#3F510D #0D5141 #1F0D51 #510D1D

split-complementary

#3F510D #0D1D51 #410D51

monochromatic

#151A04 #161C05 #3F510D #688615 #91BA1E

Accessibility & contrast

On white

8.77

#3F510D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#3F510D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F510D

8.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F510D	#FFFFFF	#000000	##FFFFFF
##3F510D	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)

#564B00

Deuteranopia (green-blind)

#544B14

Tritanopia (blue-blind)

#434D44

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3f510d;
/* rgb */ color: rgb(63, 81, 13);
/* oklch */ color: oklch(40.6% 0.092 123.9);

Tailwind

colors: {
  custom: {
    50: '#778252',
    500: '#3f510d',
    950: '#000000',
  },
}

SCSS

$custom: #3f510d;
$custom-light: #778252;
$custom-dark: #000000;

JSON

{
  "hex": "#3f510d",
  "rgb": {
    "r": 63,
    "g": 81,
    "b": 13
  },
  "hsl": {
    "h": 75.882,
    "s": 72.34,
    "l": 18.431
  },
  "oklch": {
    "l": 0.40557,
    "c": 0.09241,
    "h": 123.9
  },
  "luminance": 0.06971
}

Semantic roles & 50–950 ramp

primary

#3F510D

secondary

#472E8C

accent

#39EF69

background

#F7F7F4

surface

#EDEEE7

border

#C8C9C3

text

#090A02

muted

#7B7C78

Preview Lab

Preview with #3F510D

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

Preview Lab → · Contrast checker → · Palette generator →