#3F861B#3F861B

#3F861B is a mid, vivid yellow-green. Relative luminance 0.182; OKLCH L 55.3% C 0.155 H 137.6°. Best body text is #000000 at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#3F861B
RGB	rgb(63, 134, 27)
HSL	hsl(100, 66%, 32%)
HSV	hsv(100, 80%, 53%)
CMYK	cmyk(53%, 0%, 79.9%, 47.5%)
CIE-LAB	lab(49.72, -41.31, 46.94)
CIE-LCH	lch(49.72, 62.53, 131.35°)
OKLab	oklab(55.29% -0.1145 0.1045)
OKLCH	oklch(55.29% 0.155 137.6)
XYZ	xyz(10.7725, 18.1853, 3.9792)
Luminance	0.1819 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F861B #621B86

analogous

#75861B #3F861B #1B862D

triadic

#3F861B #1B3F86 #861B3F

tetradic

#3F861B #1B7586 #621B86 #862D1B

square

#3F861B #1B7586 #621B86 #862D1B

split-complementary

#3F861B #2D1B86 #861B75

monochromatic

#0F2006 #275311 #3F861B #57B925 #75D942

Accessibility & contrast

On white

4.53

#3F861B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.64

#3F861B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F861B

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F861B	#FFFFFF	#000000	##000000
##3F861B	1.00	4.53	4.64	4.64
#FFFFFF	4.53	1.00	21.00	21.00
#000000	4.64	21.00	1.00	1.00
##000000	4.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8B7A00

Deuteranopia (green-blind)

#817427

Tritanopia (blue-blind)

#3A8172

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3f861b;
/* rgb */ color: rgb(63, 134, 27);
/* oklch */ color: oklch(55.3% 0.155 137.6);

Tailwind

colors: {
  custom: {
    50: '#7caa61',
    500: '#3f861b',
    950: '#000000',
  },
}

SCSS

$custom: #3f861b;
$custom-light: #7caa61;
$custom-dark: #000000;

JSON

{
  "hex": "#3f861b",
  "rgb": {
    "r": 63,
    "g": 134,
    "b": 27
  },
  "hsl": {
    "h": 99.813,
    "s": 66.46,
    "l": 31.569
  },
  "oklch": {
    "l": 0.55285,
    "c": 0.15502,
    "h": 137.6
  },
  "luminance": 0.18186
}

Semantic roles & 50–950 ramp

primary

#3F861B

secondary

#9244B9

accent

#3EE9B0

background

#F7FAF6

surface

#EEF4EB

border

#C9CEC6

text

#0A1005

muted

#7C7F7A

Preview Lab

Preview with #3F861B

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

Preview Lab → · Contrast checker → · Palette generator →