#40731F#40731F

#40731F is a mid, vivid yellow-green. Relative luminance 0.135; OKLCH L 50.1% C 0.127 H 135.6°. Best body text is #FFFFFF at 5.69:1 contrast (WCAG AA passes).

Color values

HEX	#40731F
RGB	rgb(64, 115, 31)
HSL	hsl(96, 58%, 29%)
HSV	hsv(96, 73%, 45%)
CMYK	cmyk(44.3%, 0%, 73%, 54.9%)
CIE-LAB	lab(43.43, -32.65, 39.22)
CIE-LCH	lch(43.43, 51.03, 129.78°)
OKLab	oklab(50.14% -0.0909 0.089)
OKLCH	oklch(50.14% 0.127 135.6)
XYZ	xyz(8.4922, 13.4499, 3.4447)
Luminance	0.1345 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40731F #521F73

analogous

#6A731F #40731F #1F7328

triadic

#40731F #1F4073 #731F40

tetradic

#40731F #1F6A73 #521F73 #73281F

square

#40731F #1F6A73 #521F73 #73281F

split-complementary

#40731F #281F73 #731F6A

monochromatic

#0D1806 #254312 #40731F #5BA32C #77CC41

Accessibility & contrast

On white

5.69

#40731F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.69

#40731F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #40731F

5.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40731F	#FFFFFF	#000000	##FFFFFF
##40731F	1.00	5.69	3.69	5.69
#FFFFFF	5.69	1.00	21.00	1.00
#000000	3.69	21.00	1.00	21.00
##FFFFFF	5.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#776912

Deuteranopia (green-blind)

#706527

Tritanopia (blue-blind)

#3E6F62

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #40731f;
/* rgb */ color: rgb(64, 115, 31);
/* oklch */ color: oklch(50.1% 0.127 135.6);

Tailwind

colors: {
  custom: {
    50: '#7a9c60',
    500: '#40731f',
    950: '#000000',
  },
}

SCSS

$custom: #40731f;
$custom-light: #7a9c60;
$custom-dark: #000000;

JSON

{
  "hex": "#40731f",
  "rgb": {
    "r": 64,
    "g": 115,
    "b": 31
  },
  "hsl": {
    "h": 96.429,
    "s": 57.534,
    "l": 28.627
  },
  "oklch": {
    "l": 0.50141,
    "c": 0.12721,
    "h": 135.6
  },
  "luminance": 0.1345
}

Semantic roles & 50–950 ramp

primary

#40731F

secondary

#8147A7

accent

#47E1A4

background

#F7F9F5

surface

#EEF2EA

border

#C9CCC6

text

#090E05

muted

#7B7E79

Preview Lab

Preview with #40731F

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

Preview Lab → · Contrast checker → · Palette generator →