#40731D#40731D

#40731D is a mid, vivid yellow-green. Relative luminance 0.134; OKLCH L 50.1% C 0.129 H 135.4°. Best body text is #FFFFFF at 5.69:1 contrast (WCAG AA passes).

Color values

HEX	#40731D
RGB	rgb(64, 115, 29)
HSL	hsl(96, 60%, 28%)
HSV	hsv(96, 75%, 45%)
CMYK	cmyk(44.3%, 0%, 74.8%, 54.9%)
CIE-LAB	lab(43.42, -32.81, 40.02)
CIE-LCH	lch(43.42, 51.75, 129.34°)
OKLab	oklab(50.12% -0.0915 0.0904)
OKLCH	oklch(50.12% 0.129 135.4)
XYZ	xyz(8.4667, 13.4397, 3.3102)
Luminance	0.1344 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40731D #501D73

analogous

#6B731D #40731D #1D7325

triadic

#40731D #1D4073 #731D40

tetradic

#40731D #1D6B73 #501D73 #73251D

square

#40731D #1D6B73 #501D73 #73251D

split-complementary

#40731D #251D73 #731D6B

monochromatic

#0E1806 #254211 #40731D #5BA429 #78CE3C

Accessibility & contrast

On white

5.69

#40731D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.69

#40731D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #40731D

5.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40731D	#FFFFFF	#000000	##FFFFFF
##40731D	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)

#77690E

Deuteranopia (green-blind)

#716525

Tritanopia (blue-blind)

#3F6E62

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #40731d;
/* rgb */ color: rgb(64, 115, 29);
/* oklch */ color: oklch(50.1% 0.129 135.4);

Tailwind

colors: {
  custom: {
    50: '#7a9c5f',
    500: '#40731d',
    950: '#000000',
  },
}

SCSS

$custom: #40731d;
$custom-light: #7a9c5f;
$custom-dark: #000000;

JSON

{
  "hex": "#40731d",
  "rgb": {
    "r": 64,
    "g": 115,
    "b": 29
  },
  "hsl": {
    "h": 95.581,
    "s": 59.722,
    "l": 28.235
  },
  "oklch": {
    "l": 0.50124,
    "c": 0.1286,
    "h": 135.4
  },
  "luminance": 0.1344
}

Semantic roles & 50–950 ramp

primary

#40731D

secondary

#7F45A7

accent

#45E3A3

background

#F7F9F5

surface

#EEF2E9

border

#C9CCC5

text

#0A0E05

muted

#7C7E79

Preview Lab

Preview with #40731D

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

Preview Lab → · Contrast checker → · Palette generator →