#3F5B10#3F5B10

#3F5B10 is a dark, moderate yellow-green. Relative luminance 0.086; OKLCH L 43.3% C 0.104 H 128.5°. Best body text is #FFFFFF at 7.73:1 contrast (WCAG AA passes).

Color values

HEX	#3F5B10
RGB	rgb(63, 91, 16)
HSL	hsl(82, 70%, 21%)
HSV	hsv(82, 82%, 36%)
CMYK	cmyk(30.8%, 0%, 82.4%, 64.3%)
CIE-LAB	lab(35.16, -22.70, 36.92)
CIE-LCH	lch(35.16, 43.34, 121.58°)
OKLab	oklab(43.33% -0.0651 0.0817)
OKLCH	oklch(43.33% 0.104 128.5)
XYZ	xyz(5.8845, 8.5762, 1.8354)
Luminance	0.0858 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5B10 #2C105B

analogous

#5B5110 #3F5B10 #195B10

triadic

#3F5B10 #103F5B #5B103F

tetradic

#3F5B10 #105B51 #2C105B #5B1019

square

#3F5B10 #105B51 #2C105B #5B1019

split-complementary

#3F5B10 #10195B #51105B

monochromatic

#121A05 #1B2707 #3F5B10 #638F19 #87C322

Accessibility & contrast

On white

7.73

#3F5B10 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#3F5B10 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F5B10

7.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5B10	#FFFFFF	#000000	##FFFFFF
##3F5B10	1.00	7.73	2.72	7.73
#FFFFFF	7.73	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#605401

Deuteranopia (green-blind)

#5C5218

Tritanopia (blue-blind)

#41574D

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3f5b10;
/* rgb */ color: rgb(63, 91, 16);
/* oklch */ color: oklch(43.3% 0.104 128.5);

Tailwind

colors: {
  custom: {
    50: '#778955',
    500: '#3f5b10',
    950: '#000000',
  },
}

SCSS

$custom: #3f5b10;
$custom-light: #778955;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5b10",
  "rgb": {
    "r": 63,
    "g": 91,
    "b": 16
  },
  "hsl": {
    "h": 82.4,
    "s": 70.093,
    "l": 20.98
  },
  "oklch": {
    "l": 0.43333,
    "c": 0.10446,
    "h": 128.5
  },
  "luminance": 0.08576
}

Semantic roles & 50–950 ramp

primary

#3F5B10

secondary

#573394

accent

#3BED7D

background

#F7F8F5

surface

#EDF0E9

border

#C8CBC5

text

#090B03

muted

#7B7C78

Preview Lab

Preview with #3F5B10

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

Preview Lab → · Contrast checker → · Palette generator →