#3F801D#3F801D

#3F801D is a mid, vivid yellow-green. Relative luminance 0.166; OKLCH L 53.7% C 0.146 H 137.2°. Best body text is #FFFFFF at 4.86:1 contrast (WCAG AA passes).

Color values

HEX	#3F801D
RGB	rgb(63, 128, 29)
HSL	hsl(99, 63%, 31%)
HSV	hsv(99, 77%, 50%)
CMYK	cmyk(50.8%, 0%, 77.3%, 49.8%)
CIE-LAB	lab(47.73, -38.73, 44.31)
CIE-LCH	lch(47.73, 58.85, 131.16°)
OKLab	oklab(53.65% -0.1074 0.0993)
OKLCH	oklch(53.65% 0.146 137.2)
XYZ	xyz(9.9905, 16.5831, 3.8366)
Luminance	0.1658 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F801D #5E1D80

analogous

#70801D #3F801D #1D802C

triadic

#3F801D #1D3F80 #801D3F

tetradic

#3F801D #1D7080 #5E1D80 #802C1D

square

#3F801D #1D7080 #5E1D80 #802C1D

split-complementary

#3F801D #2C1D80 #801D70

monochromatic

#0E1C06 #264E12 #3F801D #58B228 #75D443

Accessibility & contrast

On white

4.86

#3F801D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.32

#3F801D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F801D

4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F801D	#FFFFFF	#000000	##FFFFFF
##3F801D	1.00	4.86	4.32	4.86
#FFFFFF	4.86	1.00	21.00	1.00
#000000	4.32	21.00	1.00	21.00
##FFFFFF	4.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#847508

Deuteranopia (green-blind)

#7C6F27

Tritanopia (blue-blind)

#3B7B6D

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #3f801d;
/* rgb */ color: rgb(63, 128, 29);
/* oklch */ color: oklch(53.7% 0.146 137.2);

Tailwind

colors: {
  custom: {
    50: '#7ba561',
    500: '#3f801d',
    950: '#000000',
  },
}

SCSS

$custom: #3f801d;
$custom-light: #7ba561;
$custom-dark: #000000;

JSON

{
  "hex": "#3f801d",
  "rgb": {
    "r": 63,
    "g": 128,
    "b": 29
  },
  "hsl": {
    "h": 99.394,
    "s": 63.057,
    "l": 30.784
  },
  "oklch": {
    "l": 0.53651,
    "c": 0.14631,
    "h": 137.2
  },
  "luminance": 0.16584
}

Semantic roles & 50–950 ramp

primary

#3F801D

secondary

#8E45B3

accent

#42E6AE

background

#F7FAF5

surface

#EEF4EA

border

#C9CEC6

text

#0A0F05

muted

#7C7F79

Preview Lab

Preview with #3F801D

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

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