#3F811D#3F811D

#3F811D is a mid, vivid yellow-green. Relative luminance 0.168; OKLCH L 53.9% C 0.148 H 137.3°. Best body text is #FFFFFF at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#3F811D
RGB	rgb(63, 129, 29)
HSL	hsl(100, 63%, 31%)
HSV	hsv(100, 78%, 51%)
CMYK	cmyk(51.2%, 0%, 77.5%, 49.4%)
CIE-LAB	lab(48.06, -39.14, 44.64)
CIE-LCH	lch(48.06, 59.37, 131.25°)
OKLab	oklab(53.93% -0.1085 0.1)
OKLCH	oklch(53.93% 0.148 137.3)
XYZ	xyz(10.1216, 16.8453, 3.8803)
Luminance	0.1685 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F811D #5F1D81

analogous

#71811D #3F811D #1D812D

triadic

#3F811D #1D3F81 #811D3F

tetradic

#3F811D #1D7181 #5F1D81 #812D1D

square

#3F811D #1D7181 #5F1D81 #812D1D

split-complementary

#3F811D #2D1D81 #811D71

monochromatic

#0E1D07 #274F12 #3F811D #57B328 #75D544

Accessibility & contrast

On white

4.81

#3F811D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.37

#3F811D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F811D

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F811D	#FFFFFF	#000000	##FFFFFF
##3F811D	1.00	4.81	4.37	4.81
#FFFFFF	4.81	1.00	21.00	1.00
#000000	4.37	21.00	1.00	21.00
##FFFFFF	4.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#857507

Deuteranopia (green-blind)

#7D7027

Tritanopia (blue-blind)

#3B7C6E

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #3f811d;
/* rgb */ color: rgb(63, 129, 29);
/* oklch */ color: oklch(53.9% 0.148 137.3);

Tailwind

colors: {
  custom: {
    50: '#7ba661',
    500: '#3f811d',
    950: '#000000',
  },
}

SCSS

$custom: #3f811d;
$custom-light: #7ba661;
$custom-dark: #000000;

JSON

{
  "hex": "#3f811d",
  "rgb": {
    "r": 63,
    "g": 129,
    "b": 29
  },
  "hsl": {
    "h": 99.6,
    "s": 63.291,
    "l": 30.98
  },
  "oklch": {
    "l": 0.53926,
    "c": 0.1476,
    "h": 137.3
  },
  "luminance": 0.16846
}

Semantic roles & 50–950 ramp

primary

#3F811D

secondary

#8F46B4

accent

#41E6AE

background

#F7FAF5

surface

#EEF4EA

border

#C9CEC6

text

#0A0F05

muted

#7C7F79

Preview Lab

Preview with #3F811D

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

Preview Lab → · Contrast checker → · Palette generator →