#3F791B#3F791B

#3F791B is a mid, vivid yellow-green. Relative luminance 0.148; OKLCH L 51.7% C 0.138 H 136.2°. Best body text is #FFFFFF at 5.30:1 contrast (WCAG AA passes).

Color values

HEX	#3F791B
RGB	rgb(63, 121, 27)
HSL	hsl(97, 64%, 29%)
HSV	hsv(97, 78%, 47%)
CMYK	cmyk(47.9%, 0%, 77.7%, 52.5%)
CIE-LAB	lab(45.37, -35.93, 42.73)
CIE-LCH	lch(45.37, 55.83, 130.06°)
OKLab	oklab(51.71% -0.1 0.0957)
OKLCH	oklch(51.71% 0.138 136.2)
XYZ	xyz(9.0849, 14.8101, 3.4166)
Luminance	0.1481 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F791B #551B79

analogous

#6E791B #3F791B #1B7926

triadic

#3F791B #1B3F79 #791B3F

tetradic

#3F791B #1B6E79 #551B79 #79261B

square

#3F791B #1B6E79 #551B79 #79261B

split-complementary

#3F791B #261B79 #791B6E

monochromatic

#0D1906 #254710 #3F791B #59AB26 #75D33B

Accessibility & contrast

On white

5.30

#3F791B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.96

#3F791B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F791B

5.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F791B	#FFFFFF	#000000	##FFFFFF
##3F791B	1.00	5.30	3.96	5.30
#FFFFFF	5.30	1.00	21.00	1.00
#000000	3.96	21.00	1.00	21.00
##FFFFFF	5.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D6E07

Deuteranopia (green-blind)

#766A25

Tritanopia (blue-blind)

#3C7467

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #3f791b;
/* rgb */ color: rgb(63, 121, 27);
/* oklch */ color: oklch(51.7% 0.138 136.2);

Tailwind

colors: {
  custom: {
    50: '#7aa05f',
    500: '#3f791b',
    950: '#000000',
  },
}

SCSS

$custom: #3f791b;
$custom-light: #7aa05f;
$custom-dark: #000000;

JSON

{
  "hex": "#3f791b",
  "rgb": {
    "r": 63,
    "g": 121,
    "b": 27
  },
  "hsl": {
    "h": 97.021,
    "s": 63.514,
    "l": 29.02
  },
  "oklch": {
    "l": 0.5171,
    "c": 0.13843,
    "h": 136.2
  },
  "luminance": 0.14811
}

Semantic roles & 50–950 ramp

primary

#3F791B

secondary

#8443AD

accent

#41E7A7

background

#F7F9F5

surface

#EEF2EA

border

#C9CCC6

text

#0A0F05

muted

#7C7E79

Preview Lab

Preview with #3F791B

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

Preview Lab → · Contrast checker → · Palette generator →