#40811B#40811B

#40811B is a mid, vivid yellow-green. Relative luminance 0.169; OKLCH L 54.0% C 0.148 H 136.9°. Best body text is #FFFFFF at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#40811B
RGB	rgb(64, 129, 27)
HSL	hsl(98, 65%, 31%)
HSV	hsv(98, 79%, 51%)
CMYK	cmyk(50.4%, 0%, 79.1%, 49.4%)
CIE-LAB	lab(48.09, -38.96, 45.40)
CIE-LCH	lch(48.09, 59.82, 130.64°)
OKLab	oklab(53.96% -0.1082 0.1013)
OKLCH	oklch(53.96% 0.148 136.9)
XYZ	xyz(10.1621, 16.8689, 3.7572)
Luminance	0.1687 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40811B #5C1B81

analogous

#73811B #40811B #1B8129

triadic

#40811B #1B4081 #811B40

tetradic

#40811B #1B7381 #5C1B81 #81291B

square

#40811B #1B7381 #5C1B81 #81291B

split-complementary

#40811B #291B81 #811B73

monochromatic

#0E1C06 #274E10 #40811B #59B426 #76D73F

Accessibility & contrast

On white

4.80

#40811B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.37

#40811B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #40811B

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40811B	#FFFFFF	#000000	##FFFFFF
##40811B	1.00	4.80	4.37	4.80
#FFFFFF	4.80	1.00	21.00	1.00
#000000	4.37	21.00	1.00	21.00
##FFFFFF	4.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#867603

Deuteranopia (green-blind)

#7D7026

Tritanopia (blue-blind)

#3C7C6E

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #40811b;
/* rgb */ color: rgb(64, 129, 27);
/* oklch */ color: oklch(54.0% 0.148 136.9);

Tailwind

colors: {
  custom: {
    50: '#7ca660',
    500: '#40811b',
    950: '#000000',
  },
}

SCSS

$custom: #40811b;
$custom-light: #7ca660;
$custom-dark: #000000;

JSON

{
  "hex": "#40811b",
  "rgb": {
    "r": 64,
    "g": 129,
    "b": 27
  },
  "hsl": {
    "h": 98.235,
    "s": 65.385,
    "l": 30.588
  },
  "oklch": {
    "l": 0.53959,
    "c": 0.14823,
    "h": 136.9
  },
  "luminance": 0.1687
}

Semantic roles & 50–950 ramp

primary

#40811B

secondary

#8B43B5

accent

#3FE8AB

background

#F7FAF5

surface

#EEF4EA

border

#C9CEC6

text

#0A0F05

muted

#7C7F79

Preview Lab

Preview with #40811B

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

Preview Lab → · Contrast checker → · Palette generator →