#3F801A#3F801A

#3F801A is a mid, vivid yellow-green. Relative luminance 0.166; OKLCH L 53.6% C 0.148 H 136.9°. Best body text is #FFFFFF at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#3F801A
RGB	rgb(63, 128, 26)
HSL	hsl(98, 66%, 30%)
HSV	hsv(98, 80%, 50%)
CMYK	cmyk(50.8%, 0%, 79.7%, 49.8%)
CIE-LAB	lab(47.71, -38.93, 45.36)
CIE-LCH	lch(47.71, 59.78, 130.64°)
OKLab	oklab(53.63% -0.1081 0.1011)
OKLCH	oklch(53.63% 0.148 136.9)
XYZ	xyz(9.9552, 16.5690, 3.6506)
Luminance	0.1657 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F801A #5B1A80

analogous

#72801A #3F801A #1A8028

triadic

#3F801A #1A3F80 #801A3F

tetradic

#3F801A #1A7280 #5B1A80 #80281A

square

#3F801A #1A7280 #5B1A80 #80281A

split-complementary

#3F801A #281A80 #801A72

monochromatic

#0D1A05 #264D10 #3F801A #58B324 #75D83D

Accessibility & contrast

On white

4.87

#3F801A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.31

#3F801A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F801A

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F801A	#FFFFFF	#000000	##FFFFFF
##3F801A	1.00	4.87	4.31	4.87
#FFFFFF	4.87	1.00	21.00	1.00
#000000	4.31	21.00	1.00	21.00
##FFFFFF	4.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#857501

Deuteranopia (green-blind)

#7C6F25

Tritanopia (blue-blind)

#3B7B6D

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #3f801a;
/* rgb */ color: rgb(63, 128, 26);
/* oklch */ color: oklch(53.6% 0.148 136.9);

Tailwind

colors: {
  custom: {
    50: '#7ba55f',
    500: '#3f801a',
    950: '#000000',
  },
}

SCSS

$custom: #3f801a;
$custom-light: #7ba55f;
$custom-dark: #000000;

JSON

{
  "hex": "#3f801a",
  "rgb": {
    "r": 63,
    "g": 128,
    "b": 26
  },
  "hsl": {
    "h": 98.235,
    "s": 66.234,
    "l": 30.196
  },
  "oklch": {
    "l": 0.53631,
    "c": 0.14803,
    "h": 136.9
  },
  "luminance": 0.1657
}

Semantic roles & 50–950 ramp

primary

#3F801A

secondary

#8B42B4

accent

#3FE9AB

background

#F7FAF5

surface

#EEF4EA

border

#C9CEC6

text

#0A0F05

muted

#7C7F79

Preview Lab

Preview with #3F801A

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

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