#3F7F1B#3F7F1B

#3F7F1B is a mid, vivid yellow-green. Relative luminance 0.163; OKLCH L 53.4% C 0.146 H 136.9°. Best body text is #FFFFFF at 4.93:1 contrast (WCAG AA passes).

Color values

HEX	#3F7F1B
RGB	rgb(63, 127, 27)
HSL	hsl(98, 65%, 30%)
HSV	hsv(98, 79%, 50%)
CMYK	cmyk(50.4%, 0%, 78.7%, 50.2%)
CIE-LAB	lab(47.38, -38.45, 44.69)
CIE-LCH	lch(47.38, 58.96, 130.71°)
OKLab	oklab(53.36% -0.1068 0.0998)
OKLCH	oklch(53.36% 0.146 136.9)
XYZ	xyz(9.8368, 16.3140, 3.6673)
Luminance	0.1631 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7F1B #5B1B7F

analogous

#717F1B #3F7F1B #1B7F29

triadic

#3F7F1B #1B3F7F #7F1B3F

tetradic

#3F7F1B #1B717F #5B1B7F #7F291B

square

#3F7F1B #1B717F #5B1B7F #7F291B

split-complementary

#3F7F1B #291B7F #7F1B71

monochromatic

#0D1A06 #264D10 #3F7F1B #58B126 #75D63E

Accessibility & contrast

On white

4.93

#3F7F1B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.26

#3F7F1B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F7F1B

4.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7F1B	#FFFFFF	#000000	##FFFFFF
##3F7F1B	1.00	4.93	4.26	4.93
#FFFFFF	4.93	1.00	21.00	1.00
#000000	4.26	21.00	1.00	21.00
##FFFFFF	4.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#837404

Deuteranopia (green-blind)

#7B6E26

Tritanopia (blue-blind)

#3B7A6C

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #3f7f1b;
/* rgb */ color: rgb(63, 127, 27);
/* oklch */ color: oklch(53.4% 0.146 136.9);

Tailwind

colors: {
  custom: {
    50: '#7ba560',
    500: '#3f7f1b',
    950: '#000000',
  },
}

SCSS

$custom: #3f7f1b;
$custom-light: #7ba560;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7f1b",
  "rgb": {
    "r": 63,
    "g": 127,
    "b": 27
  },
  "hsl": {
    "h": 98.4,
    "s": 64.935,
    "l": 30.196
  },
  "oklch": {
    "l": 0.53362,
    "c": 0.1462,
    "h": 136.9
  },
  "luminance": 0.16315
}

Semantic roles & 50–950 ramp

primary

#3F7F1B

secondary

#8B43B3

accent

#40E8AB

background

#F7FAF5

surface

#EEF4EA

border

#C9CEC6

text

#0A0F05

muted

#7C7F79

Preview Lab

Preview with #3F7F1B

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

Preview Lab → · Contrast checker → · Palette generator →