#40731E#40731E

#40731E is a mid, vivid yellow-green. Relative luminance 0.134; OKLCH L 50.1% C 0.128 H 135.5°. Best body text is #FFFFFF at 5.69:1 contrast (WCAG AA passes).

Color values

HEX	#40731E
RGB	rgb(64, 115, 30)
HSL	hsl(96, 59%, 28%)
HSV	hsv(96, 74%, 45%)
CMYK	cmyk(44.3%, 0%, 73.9%, 54.9%)
CIE-LAB	lab(43.43, -32.73, 39.62)
CIE-LCH	lch(43.43, 51.40, 129.56°)
OKLab	oklab(50.13% -0.0912 0.0897)
OKLCH	oklch(50.13% 0.128 135.5)
XYZ	xyz(8.4792, 13.4447, 3.3763)
Luminance	0.1344 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40731E #511E73

analogous

#6A731E #40731E #1E7326

triadic

#40731E #1E4073 #731E40

tetradic

#40731E #1E6A73 #511E73 #73261E

square

#40731E #1E6A73 #511E73 #73261E

split-complementary

#40731E #261E73 #731E6A

monochromatic

#0E1806 #254211 #40731E #5BA42B #77CD3F

Accessibility & contrast

On white

5.69

#40731E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.69

#40731E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #40731E

5.69:1 — WCAG AA (normal text) passes

Contrast matrix

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

#776910

Deuteranopia (green-blind)

#706526

Tritanopia (blue-blind)

#3E6F62

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #40731e;
/* rgb */ color: rgb(64, 115, 30);
/* oklch */ color: oklch(50.1% 0.128 135.5);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#40731e",
  "rgb": {
    "r": 64,
    "g": 115,
    "b": 30
  },
  "hsl": {
    "h": 96,
    "s": 58.621,
    "l": 28.431
  },
  "oklch": {
    "l": 0.50132,
    "c": 0.12791,
    "h": 135.5
  },
  "luminance": 0.13445
}

Semantic roles & 50–950 ramp

primary

#40731E

secondary

#8046A7

accent

#46E2A3

background

#F7F9F5

surface

#EEF2EA

border

#C9CCC6

text

#090E05

muted

#7B7E79

Preview Lab

Preview with #40731E

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

Preview Lab → · Contrast checker → · Palette generator →