#40581E#40581E

#40581E is a dark, moderate yellow-green. Relative luminance 0.082; OKLCH L 42.7% C 0.089 H 128.6°. Best body text is #FFFFFF at 7.98:1 contrast (WCAG AA passes).

Color values

HEX	#40581E
RGB	rgb(64, 88, 30)
HSL	hsl(85, 49%, 23%)
HSV	hsv(85, 66%, 35%)
CMYK	cmyk(27.3%, 0%, 65.9%, 65.5%)
CIE-LAB	lab(34.32, -19.61, 29.94)
CIE-LCH	lch(34.32, 35.80, 123.23°)
OKLab	oklab(42.71% -0.0554 0.0693)
OKLCH	oklch(42.71% 0.089 128.6)
XYZ	xyz(5.8384, 8.1630, 2.4961)
Luminance	0.0816 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40581E #361E58

analogous

#58531E #40581E #23581E

triadic

#40581E #1E4058 #581E40

tetradic

#40581E #1E5853 #361E58 #581E23

square

#40581E #1E5853 #361E58 #581E23

split-complementary

#40581E #1E2358 #531E58

monochromatic

#111708 #1F2A0E #40581E #61862E #82B33D

Accessibility & contrast

On white

7.98

#40581E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#40581E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40581E

7.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40581E	#FFFFFF	#000000	##FFFFFF
##40581E	1.00	7.98	2.63	7.98
#FFFFFF	7.98	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	7.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C5217

Deuteranopia (green-blind)

#595022

Tritanopia (blue-blind)

#42544C

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #40581e;
/* rgb */ color: rgb(64, 88, 30);
/* oklch */ color: oklch(42.7% 0.089 128.6);

Tailwind

colors: {
  custom: {
    50: '#77875c',
    500: '#40581e',
    950: '#000000',
  },
}

SCSS

$custom: #40581e;
$custom-light: #77875c;
$custom-dark: #000000;

JSON

{
  "hex": "#40581e",
  "rgb": {
    "r": 64,
    "g": 88,
    "b": 30
  },
  "hsl": {
    "h": 84.828,
    "s": 49.153,
    "l": 23.137
  },
  "oklch": {
    "l": 0.42709,
    "c": 0.0887,
    "h": 128.6
  },
  "luminance": 0.08163
}

Semantic roles & 50–950 ramp

primary

#40581E

secondary

#63458D

accent

#4FD988

background

#F7F8F5

surface

#EDEFE9

border

#C8CAC5

text

#090B04

muted

#7B7C79

Preview Lab

Preview with #40581E

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

Preview Lab → · Contrast checker → · Palette generator →