#40591F#40591F

#40591F is a dark, moderate yellow-green. Relative luminance 0.083; OKLCH L 43.0% C 0.089 H 129.2°. Best body text is #FFFFFF at 7.87:1 contrast (WCAG AA passes).

Color values

HEX	#40591F
RGB	rgb(64, 89, 31)
HSL	hsl(86, 48%, 24%)
HSV	hsv(86, 65%, 35%)
CMYK	cmyk(28.1%, 0%, 65.2%, 65.1%)
CIE-LAB	lab(34.67, -20.04, 29.82)
CIE-LCH	lch(34.67, 35.93, 123.90°)
OKLab	oklab(43% -0.0565 0.0692)
OKLCH	oklch(43% 0.089 129.2)
XYZ	xyz(5.9340, 8.3335, 2.5920)
Luminance	0.0833 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40591F #381F59

analogous

#59551F #40591F #23591F

triadic

#40591F #1F4059 #591F40

tetradic

#40591F #1F5955 #381F59 #591F23

square

#40591F #1F5955 #381F59 #591F23

split-complementary

#40591F #1F2359 #551F59

monochromatic

#101708 #1F2C0F #40591F #61862F #81B43F

Accessibility & contrast

On white

7.87

#40591F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#40591F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40591F

7.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40591F	#FFFFFF	#000000	##FFFFFF
##40591F	1.00	7.87	2.67	7.87
#FFFFFF	7.87	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D5318

Deuteranopia (green-blind)

#5A5123

Tritanopia (blue-blind)

#42554D

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #40591f;
/* rgb */ color: rgb(64, 89, 31);
/* oklch */ color: oklch(43.0% 0.089 129.2);

Tailwind

colors: {
  custom: {
    50: '#77885d',
    500: '#40591f',
    950: '#000000',
  },
}

SCSS

$custom: #40591f;
$custom-light: #77885d;
$custom-dark: #000000;

JSON

{
  "hex": "#40591f",
  "rgb": {
    "r": 64,
    "g": 89,
    "b": 31
  },
  "hsl": {
    "h": 85.862,
    "s": 48.333,
    "l": 23.529
  },
  "oklch": {
    "l": 0.42995,
    "c": 0.08929,
    "h": 129.2
  },
  "luminance": 0.08334
}

Semantic roles & 50–950 ramp

primary

#40591F

secondary

#65468E

accent

#50D88B

background

#F7F8F5

surface

#EDEFE9

border

#C8CAC5

text

#090B04

muted

#7B7C79

Preview Lab

Preview with #40591F

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

Preview Lab → · Contrast checker → · Palette generator →