#3F550C#3F550C

#3F550C is a dark, moderate yellow-green. Relative luminance 0.076; OKLCH L 41.7% C 0.098 H 125.8°. Best body text is #FFFFFF at 8.35:1 contrast (WCAG AA passes).

Color values

HEX	#3F550C
RGB	rgb(63, 85, 12)
HSL	hsl(78, 75%, 19%)
HSV	hsv(78, 86%, 33%)
CMYK	cmyk(25.9%, 0%, 85.9%, 66.7%)
CIE-LAB	lab(33.09, -19.81, 36.40)
CIE-LCH	lch(33.09, 41.44, 118.56°)
OKLab	oklab(41.65% -0.0575 0.0799)
OKLCH	oklch(41.65% 0.098 125.8)
XYZ	xyz(5.3648, 7.5802, 1.5282)
Luminance	0.0758 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F550C #220C55

analogous

#55470C #3F550C #1B550C

triadic

#3F550C #0C3F55 #550C3F

tetradic

#3F550C #0C5547 #220C55 #550C1B

square

#3F550C #0C5547 #220C55 #550C1B

split-complementary

#3F550C #0C1B55 #470C55

monochromatic

#141B04 #171F04 #3F550C #678B14 #8EC01B

Accessibility & contrast

On white

8.35

#3F550C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#3F550C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F550C

8.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F550C	#FFFFFF	#000000	##FFFFFF
##3F550C	1.00	8.35	2.52	8.35
#FFFFFF	8.35	1.00	21.00	1.00
#000000	2.52	21.00	1.00	21.00
##FFFFFF	8.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A4F00

Deuteranopia (green-blind)

#574D14

Tritanopia (blue-blind)

#425048

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #3f550c;
/* rgb */ color: rgb(63, 85, 12);
/* oklch */ color: oklch(41.7% 0.098 125.8);

Tailwind

colors: {
  custom: {
    50: '#778552',
    500: '#3f550c',
    950: '#000000',
  },
}

SCSS

$custom: #3f550c;
$custom-light: #778552;
$custom-dark: #000000;

JSON

{
  "hex": "#3f550c",
  "rgb": {
    "r": 63,
    "g": 85,
    "b": 12
  },
  "hsl": {
    "h": 78.082,
    "s": 75.258,
    "l": 19.02
  },
  "oklch": {
    "l": 0.41651,
    "c": 0.09847,
    "h": 125.8
  },
  "luminance": 0.0758
}

Semantic roles & 50–950 ramp

primary

#3F550C

secondary

#4B2D90

accent

#36F26F

background

#F7F8F4

surface

#EDEFE7

border

#C8CAC3

text

#090B02

muted

#7B7C78

Preview Lab

Preview with #3F550C

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

Preview Lab → · Contrast checker → · Palette generator →