#3B781B#3B781B

#3B781B is a mid, vivid yellow-green. Relative luminance 0.144; OKLCH L 51.2% C 0.139 H 137.2°. Best body text is #FFFFFF at 5.40:1 contrast (WCAG AA passes).

Color values

HEX	#3B781B
RGB	rgb(59, 120, 27)
HSL	hsl(99, 63%, 29%)
HSV	hsv(99, 78%, 47%)
CMYK	cmyk(50.8%, 0%, 77.5%, 52.9%)
CIE-LAB	lab(44.86, -36.84, 42.17)
CIE-LCH	lch(44.86, 55.99, 131.14°)
OKLab	oklab(51.24% -0.1022 0.0946)
OKLCH	oklch(51.24% 0.139 137.2)
XYZ	xyz(8.7177, 14.4413, 3.3648)
Luminance	0.1444 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B781B #581B78

analogous

#6A781B #3B781B #1B782A

triadic

#3B781B #1B3B78 #781B3B

tetradic

#3B781B #1B6A78 #581B78 #782A1B

square

#3B781B #1B6A78 #581B78 #782A1B

split-complementary

#3B781B #2A1B78 #781B6A

monochromatic

#0C1906 #224610 #3B781B #54AA26 #6FD33B

Accessibility & contrast

On white

5.40

#3B781B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.89

#3B781B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B781B

5.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B781B	#FFFFFF	#000000	##FFFFFF
##3B781B	1.00	5.40	3.89	5.40
#FFFFFF	5.40	1.00	21.00	1.00
#000000	3.89	21.00	1.00	21.00
##FFFFFF	5.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C6D08

Deuteranopia (green-blind)

#746825

Tritanopia (blue-blind)

#377366

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #3b781b;
/* rgb */ color: rgb(59, 120, 27);
/* oklch */ color: oklch(51.2% 0.139 137.2);

Tailwind

colors: {
  custom: {
    50: '#779f5f',
    500: '#3b781b',
    950: '#000000',
  },
}

SCSS

$custom: #3b781b;
$custom-light: #779f5f;
$custom-dark: #000000;

JSON

{
  "hex": "#3b781b",
  "rgb": {
    "r": 59,
    "g": 120,
    "b": 27
  },
  "hsl": {
    "h": 99.355,
    "s": 63.265,
    "l": 28.824
  },
  "oklch": {
    "l": 0.51239,
    "c": 0.13925,
    "h": 137.2
  },
  "luminance": 0.14442
}

Semantic roles & 50–950 ramp

primary

#3B781B

secondary

#8843AC

accent

#41E6AE

background

#F7F9F5

surface

#EEF2E9

border

#C9CCC5

text

#090E05

muted

#7B7E79

Preview Lab

Preview with #3B781B

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

Preview Lab → · Contrast checker → · Palette generator →