#40501B#40501B

#40501B is a dark, moderate yellow-green. Relative luminance 0.069; OKLCH L 40.5% C 0.079 H 124.1°. Best body text is #FFFFFF at 8.82:1 contrast (WCAG AA passes).

Color values

HEX	#40501B
RGB	rgb(64, 80, 27)
HSL	hsl(78, 50%, 21%)
HSV	hsv(78, 66%, 31%)
CMYK	cmyk(20%, 0%, 66.3%, 68.6%)
CIE-LAB	lab(31.59, -15.56, 28.45)
CIE-LCH	lch(31.59, 32.43, 118.68°)
OKLab	oklab(40.49% -0.0445 0.0657)
OKLCH	oklch(40.49% 0.079 124.1)
XYZ	xyz(5.1809, 6.9064, 2.0968)
Luminance	0.0691 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40501B #2B1B50

analogous

#50451B #40501B #25501B

triadic

#40501B #1B4050 #501B40

tetradic

#40501B #1B5045 #2B1B50 #501B25

square

#40501B #1B5045 #2B1B50 #501B25

split-complementary

#40501B #1B2550 #451B50

monochromatic

#121708 #1B220C #40501B #657E2A #89AC3A

Accessibility & contrast

On white

8.82

#40501B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#40501B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40501B

8.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40501B	#FFFFFF	#000000	##FFFFFF
##40501B	1.00	8.82	2.38	8.82
#FFFFFF	8.82	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554B15

Deuteranopia (green-blind)

#524A1F

Tritanopia (blue-blind)

#434C45

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #40501b;
/* rgb */ color: rgb(64, 80, 27);
/* oklch */ color: oklch(40.5% 0.079 124.1);

Tailwind

colors: {
  custom: {
    50: '#76815a',
    500: '#40501b',
    950: '#000000',
  },
}

SCSS

$custom: #40501b;
$custom-light: #76815a;
$custom-dark: #000000;

JSON

{
  "hex": "#40501b",
  "rgb": {
    "r": 64,
    "g": 80,
    "b": 27
  },
  "hsl": {
    "h": 78.113,
    "s": 49.533,
    "l": 20.98
  },
  "oklch": {
    "l": 0.40494,
    "c": 0.07934,
    "h": 124.1
  },
  "luminance": 0.06906
}

Semantic roles & 50–950 ramp

primary

#40501B

secondary

#564186

accent

#4FD978

background

#F7F7F5

surface

#EDEEE9

border

#C8C9C5

text

#090A04

muted

#7B7C79

Preview Lab

Preview with #40501B

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

Preview Lab → · Contrast checker → · Palette generator →