#3F831A#3F831A

#3F831A is a mid, vivid yellow-green. Relative luminance 0.174; OKLCH L 54.5% C 0.152 H 137.2°. Best body text is #FFFFFF at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#3F831A
RGB	rgb(63, 131, 26)
HSL	hsl(99, 67%, 31%)
HSV	hsv(99, 80%, 51%)
CMYK	cmyk(51.9%, 0%, 80.2%, 48.6%)
CIE-LAB	lab(48.71, -40.16, 46.32)
CIE-LCH	lch(48.71, 61.30, 130.93°)
OKLab	oklab(54.46% -0.1114 0.1031)
OKLCH	oklch(54.46% 0.152 137.2)
XYZ	xyz(10.3523, 17.3632, 3.7830)
Luminance	0.1736 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F831A #5E1A83

analogous

#73831A #3F831A #1A8329

triadic

#3F831A #1A3F83 #831A3F

tetradic

#3F831A #1A7383 #5E1A83 #83291A

square

#3F831A #1A7383 #5E1A83 #83291A

split-complementary

#3F831A #291A83 #831A73

monochromatic

#0E1D06 #265010 #3F831A #58B624 #75D93F

Accessibility & contrast

On white

4.70

#3F831A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.47

#3F831A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F831A

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F831A	#FFFFFF	#000000	##FFFFFF
##3F831A	1.00	4.70	4.47	4.70
#FFFFFF	4.70	1.00	21.00	1.00
#000000	4.47	21.00	1.00	21.00
##FFFFFF	4.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#887700

Deuteranopia (green-blind)

#7F7226

Tritanopia (blue-blind)

#3B7E6F

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3f831a;
/* rgb */ color: rgb(63, 131, 26);
/* oklch */ color: oklch(54.5% 0.152 137.2);

Tailwind

colors: {
  custom: {
    50: '#7ba860',
    500: '#3f831a',
    950: '#000000',
  },
}

SCSS

$custom: #3f831a;
$custom-light: #7ba860;
$custom-dark: #000000;

JSON

{
  "hex": "#3f831a",
  "rgb": {
    "r": 63,
    "g": 131,
    "b": 26
  },
  "hsl": {
    "h": 98.857,
    "s": 66.879,
    "l": 30.784
  },
  "oklch": {
    "l": 0.54456,
    "c": 0.1518,
    "h": 137.2
  },
  "luminance": 0.17364
}

Semantic roles & 50–950 ramp

primary

#3F831A

secondary

#8E42B7

accent

#3EEAAD

background

#F7FAF5

surface

#EEF4EA

border

#C9CEC6

text

#0A0F05

muted

#7C7F79

Preview Lab

Preview with #3F831A

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

Preview Lab → · Contrast checker → · Palette generator →