#3F841A#3F841A

#3F841A is a mid, vivid yellow-green. Relative luminance 0.176; OKLCH L 54.7% C 0.153 H 137.3°. Best body text is #FFFFFF at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#3F841A
RGB	rgb(63, 132, 26)
HSL	hsl(99, 67%, 31%)
HSV	hsv(99, 80%, 52%)
CMYK	cmyk(52.3%, 0%, 80.3%, 48.2%)
CIE-LAB	lab(49.05, -40.56, 46.63)
CIE-LCH	lch(49.05, 61.81, 131.02°)
OKLab	oklab(54.73% -0.1125 0.1037)
OKLCH	oklch(54.73% 0.153 137.3)
XYZ	xyz(10.4873, 17.6331, 3.8280)
Luminance	0.1763 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F841A #5F1A84

analogous

#74841A #3F841A #1A842A

triadic

#3F841A #1A3F84 #841A3F

tetradic

#3F841A #1A7484 #5F1A84 #842A1A

square

#3F841A #1A7484 #5F1A84 #842A1A

split-complementary

#3F841A #2A1A84 #841A74

monochromatic

#0E1E06 #275110 #3F841A #57B724 #75D93F

Accessibility & contrast

On white

4.64

#3F841A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.53

#3F841A on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3F841A

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F841A	#FFFFFF	#000000	##FFFFFF
##3F841A	1.00	4.64	4.53	4.64
#FFFFFF	4.64	1.00	21.00	1.00
#000000	4.53	21.00	1.00	21.00
##FFFFFF	4.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#897800

Deuteranopia (green-blind)

#807226

Tritanopia (blue-blind)

#3A7F70

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #3f841a;
/* rgb */ color: rgb(63, 132, 26);
/* oklch */ color: oklch(54.7% 0.153 137.3);

Tailwind

colors: {
  custom: {
    50: '#7ca860',
    500: '#3f841a',
    950: '#000000',
  },
}

SCSS

$custom: #3f841a;
$custom-light: #7ca860;
$custom-dark: #000000;

JSON

{
  "hex": "#3f841a",
  "rgb": {
    "r": 63,
    "g": 132,
    "b": 26
  },
  "hsl": {
    "h": 99.057,
    "s": 67.089,
    "l": 30.98
  },
  "oklch": {
    "l": 0.5473,
    "c": 0.15306,
    "h": 137.3
  },
  "luminance": 0.17634
}

Semantic roles & 50–950 ramp

primary

#3F841A

secondary

#8F42B8

accent

#3EEAAE

background

#F7FAF5

surface

#EEF4EA

border

#C9CEC6

text

#0A1005

muted

#7C7F79

Preview Lab

Preview with #3F841A

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

Preview Lab → · Contrast checker → · Palette generator →