#40531B#40531B

#40531B is a dark, moderate yellow-green. Relative luminance 0.074; OKLCH L 41.3% C 0.084 H 125.8°. Best body text is #FFFFFF at 8.50:1 contrast (WCAG AA passes).

Color values

HEX	#40531B
RGB	rgb(64, 83, 27)
HSL	hsl(80, 51%, 22%)
HSV	hsv(80, 67%, 33%)
CMYK	cmyk(22.9%, 0%, 67.5%, 67.5%)
CIE-LAB	lab(32.60, -17.22, 29.56)
CIE-LCH	lch(32.60, 34.21, 120.22°)
OKLab	oklab(41.31% -0.0491 0.0681)
OKLCH	oklch(41.31% 0.084 125.8)
XYZ	xyz(5.4055, 7.3556, 2.1717)
Luminance	0.0736 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40531B #2E1B53

analogous

#534A1B #40531B #24531B

triadic

#40531B #1B4053 #531B40

tetradic

#40531B #1B534A #2E1B53 #531B24

square

#40531B #1B534A #2E1B53 #531B24

split-complementary

#40531B #1B2453 #4A1B53

monochromatic

#121708 #1C250C #40531B #64812A #87AF39

Accessibility & contrast

On white

8.50

#40531B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#40531B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40531B

8.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40531B	#FFFFFF	#000000	##FFFFFF
##40531B	1.00	8.50	2.47	8.50
#FFFFFF	8.50	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#584D14

Deuteranopia (green-blind)

#554C1F

Tritanopia (blue-blind)

#434F47

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #40531b;
/* rgb */ color: rgb(64, 83, 27);
/* oklch */ color: oklch(41.3% 0.084 125.8);

Tailwind

colors: {
  custom: {
    50: '#77835a',
    500: '#40531b',
    950: '#000000',
  },
}

SCSS

$custom: #40531b;
$custom-light: #77835a;
$custom-dark: #000000;

JSON

{
  "hex": "#40531b",
  "rgb": {
    "r": 64,
    "g": 83,
    "b": 27
  },
  "hsl": {
    "h": 80.357,
    "s": 50.909,
    "l": 21.569
  },
  "oklch": {
    "l": 0.4131,
    "c": 0.0839,
    "h": 125.8
  },
  "luminance": 0.07356
}

Semantic roles & 50–950 ramp

primary

#40531B

secondary

#594189

accent

#4DDA7D

background

#F7F8F5

surface

#EDEFE9

border

#C8CAC5

text

#090A04

muted

#7B7C79

Preview Lab

Preview with #40531B

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

Preview Lab → · Contrast checker → · Palette generator →