#3F831C#3F831C

#3F831C is a mid, vivid yellow-green. Relative luminance 0.174; OKLCH L 54.5% C 0.151 H 137.4°. Best body text is #FFFFFF at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#3F831C
RGB	rgb(63, 131, 28)
HSL	hsl(100, 65%, 31%)
HSV	hsv(100, 79%, 51%)
CMYK	cmyk(51.9%, 0%, 78.6%, 48.6%)
CIE-LAB	lab(48.73, -40.03, 45.64)
CIE-LCH	lch(48.73, 60.71, 131.25°)
OKLab	oklab(54.47% -0.111 0.102)
OKLCH	oklch(54.47% 0.151 137.4)
XYZ	xyz(10.3755, 17.3724, 3.9049)
Luminance	0.1737 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F831C #601C83

analogous

#72831C #3F831C #1C832C

triadic

#3F831C #1C3F83 #831C3F

tetradic

#3F831C #1C7283 #601C83 #832C1C

square

#3F831C #1C7283 #601C83 #832C1C

split-complementary

#3F831C #2C1C83 #831C72

monochromatic

#0F1E06 #275111 #3F831C #57B527 #75D743

Accessibility & contrast

On white

4.69

#3F831C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.47

#3F831C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F831C

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F831C	#FFFFFF	#000000	##FFFFFF
##3F831C	1.00	4.69	4.47	4.69
#FFFFFF	4.69	1.00	21.00	1.00
#000000	4.47	21.00	1.00	21.00
##FFFFFF	4.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#877704

Deuteranopia (green-blind)

#7F7227

Tritanopia (blue-blind)

#3A7E70

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3f831c;
/* rgb */ color: rgb(63, 131, 28);
/* oklch */ color: oklch(54.5% 0.151 137.4);

Tailwind

colors: {
  custom: {
    50: '#7ba861',
    500: '#3f831c',
    950: '#000000',
  },
}

SCSS

$custom: #3f831c;
$custom-light: #7ba861;
$custom-dark: #000000;

JSON

{
  "hex": "#3f831c",
  "rgb": {
    "r": 63,
    "g": 131,
    "b": 28
  },
  "hsl": {
    "h": 99.612,
    "s": 64.78,
    "l": 31.176
  },
  "oklch": {
    "l": 0.54469,
    "c": 0.15071,
    "h": 137.4
  },
  "luminance": 0.17373
}

Semantic roles & 50–950 ramp

primary

#3F831C

secondary

#9045B6

accent

#40E8AF

background

#F7FAF5

surface

#EEF4EA

border

#C9CEC6

text

#0A0F05

muted

#7C7F79

Preview Lab

Preview with #3F831C

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

Preview Lab → · Contrast checker → · Palette generator →