#3F851A#3F851A

#3F851A is a mid, vivid yellow-green. Relative luminance 0.179; OKLCH L 55.0% C 0.154 H 137.4°. Best body text is #000000 at 4.58:1 contrast (WCAG AA passes).

Color values

HEX	#3F851A
RGB	rgb(63, 133, 26)
HSL	hsl(99, 67%, 31%)
HSV	hsv(99, 80%, 52%)
CMYK	cmyk(52.6%, 0%, 80.5%, 47.8%)
CIE-LAB	lab(49.38, -40.97, 46.95)
CIE-LCH	lch(49.38, 62.31, 131.11°)
OKLab	oklab(55.01% -0.1136 0.1044)
OKLCH	oklch(55.01% 0.154 137.4)
XYZ	xyz(10.6235, 17.9056, 3.8734)
Luminance	0.1791 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F851A #601A85

analogous

#74851A #3F851A #1A852A

triadic

#3F851A #1A3F85 #851A3F

tetradic

#3F851A #1A7485 #601A85 #852A1A

square

#3F851A #1A7485 #601A85 #852A1A

split-complementary

#3F851A #2A1A85 #851A74

monochromatic

#0F1F06 #275210 #3F851A #57B824 #75DA40

Accessibility & contrast

On white

4.58

#3F851A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.58

#3F851A on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F851A

4.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F851A	#FFFFFF	#000000	##000000
##3F851A	1.00	4.58	4.58	4.58
#FFFFFF	4.58	1.00	21.00	21.00
#000000	4.58	21.00	1.00	1.00
##000000	4.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8A7900

Deuteranopia (green-blind)

#817326

Tritanopia (blue-blind)

#3A8071

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #3f851a;
/* rgb */ color: rgb(63, 133, 26);
/* oklch */ color: oklch(55.0% 0.154 137.4);

Tailwind

colors: {
  custom: {
    50: '#7ca960',
    500: '#3f851a',
    950: '#000000',
  },
}

SCSS

$custom: #3f851a;
$custom-light: #7ca960;
$custom-dark: #000000;

JSON

{
  "hex": "#3f851a",
  "rgb": {
    "r": 63,
    "g": 133,
    "b": 26
  },
  "hsl": {
    "h": 99.252,
    "s": 67.296,
    "l": 31.176
  },
  "oklch": {
    "l": 0.55005,
    "c": 0.1543,
    "h": 137.4
  },
  "luminance": 0.17906
}

Semantic roles & 50–950 ramp

primary

#3F851A

secondary

#9042B8

accent

#3EEAAF

background

#F7FAF5

surface

#EEF4EA

border

#C9CEC6

text

#0A1005

muted

#7C7F79

Preview Lab

Preview with #3F851A

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

Preview Lab → · Contrast checker → · Palette generator →