#40731C#40731C

#40731C is a mid, vivid yellow-green. Relative luminance 0.134; OKLCH L 50.1% C 0.129 H 135.2°. Best body text is #FFFFFF at 5.70:1 contrast (WCAG AA passes).

Color values

HEX	#40731C
RGB	rgb(64, 115, 28)
HSL	hsl(95, 61%, 28%)
HSV	hsv(95, 76%, 45%)
CMYK	cmyk(44.3%, 0%, 75.7%, 54.9%)
CIE-LAB	lab(43.41, -32.89, 40.42)
CIE-LCH	lch(43.41, 52.11, 129.13°)
OKLab	oklab(50.12% -0.0918 0.091)
OKLCH	oklch(50.12% 0.129 135.2)
XYZ	xyz(8.4545, 13.4348, 3.2461)
Luminance	0.1343 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40731C #4F1C73

analogous

#6B731C #40731C #1C7323

triadic

#40731C #1C4073 #731C40

tetradic

#40731C #1C6B73 #4F1C73 #73231C

square

#40731C #1C6B73 #4F1C73 #73231C

split-complementary

#40731C #231C73 #731C6B

monochromatic

#0E1906 #254210 #40731C #5BA428 #78CF3A

Accessibility & contrast

On white

5.70

#40731C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.69

#40731C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #40731C

5.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40731C	#FFFFFF	#000000	##FFFFFF
##40731C	1.00	5.70	3.69	5.70
#FFFFFF	5.70	1.00	21.00	1.00
#000000	3.69	21.00	1.00	21.00
##FFFFFF	5.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#77690C

Deuteranopia (green-blind)

#716524

Tritanopia (blue-blind)

#3F6E62

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #40731c;
/* rgb */ color: rgb(64, 115, 28);
/* oklch */ color: oklch(50.1% 0.129 135.2);

Tailwind

colors: {
  custom: {
    50: '#7a9c5e',
    500: '#40731c',
    950: '#000000',
  },
}

SCSS

$custom: #40731c;
$custom-light: #7a9c5e;
$custom-dark: #000000;

JSON

{
  "hex": "#40731c",
  "rgb": {
    "r": 64,
    "g": 115,
    "b": 28
  },
  "hsl": {
    "h": 95.172,
    "s": 60.839,
    "l": 28.039
  },
  "oklch": {
    "l": 0.50116,
    "c": 0.12927,
    "h": 135.2
  },
  "luminance": 0.13435
}

Semantic roles & 50–950 ramp

primary

#40731C

secondary

#7E43A7

accent

#44E4A2

background

#F7F9F5

surface

#EEF2E9

border

#C9CCC5

text

#0A0E05

muted

#7C7E79

Preview Lab

Preview with #40731C

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

Preview Lab → · Contrast checker → · Palette generator →