#40571A#40571A

#40571A is a dark, moderate yellow-green. Relative luminance 0.080; OKLCH L 42.4% C 0.091 H 127.5°. Best body text is #FFFFFF at 8.09:1 contrast (WCAG AA passes).

Color values

HEX	#40571A
RGB	rgb(64, 87, 26)
HSL	hsl(83, 54%, 22%)
HSV	hsv(83, 70%, 34%)
CMYK	cmyk(26.4%, 0%, 70.1%, 65.9%)
CIE-LAB	lab(33.94, -19.46, 31.50)
CIE-LCH	lch(33.94, 37.02, 121.71°)
OKLab	oklab(42.39% -0.0553 0.072)
OKLCH	oklch(42.39% 0.091 127.5)
XYZ	xyz(5.7090, 7.9809, 2.2168)
Luminance	0.0798 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40571A #311A57

analogous

#57501A #40571A #22571A

triadic

#40571A #1A4057 #571A40

tetradic

#40571A #1A5750 #311A57 #571A22

square

#40571A #1A5750 #311A57 #571A22

split-complementary

#40571A #1A2257 #501A57

monochromatic

#111807 #1D280C #40571A #638628 #85B536

Accessibility & contrast

On white

8.09

#40571A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#40571A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40571A

8.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40571A	#FFFFFF	#000000	##FFFFFF
##40571A	1.00	8.09	2.60	8.09
#FFFFFF	8.09	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C5112

Deuteranopia (green-blind)

#584F1F

Tritanopia (blue-blind)

#42534A

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #40571a;
/* rgb */ color: rgb(64, 87, 26);
/* oklch */ color: oklch(42.4% 0.091 127.5);

Tailwind

colors: {
  custom: {
    50: '#77865a',
    500: '#40571a',
    950: '#000000',
  },
}

SCSS

$custom: #40571a;
$custom-light: #77865a;
$custom-dark: #000000;

JSON

{
  "hex": "#40571a",
  "rgb": {
    "r": 64,
    "g": 87,
    "b": 26
  },
  "hsl": {
    "h": 82.623,
    "s": 53.982,
    "l": 22.157
  },
  "oklch": {
    "l": 0.42391,
    "c": 0.09082,
    "h": 127.5
  },
  "luminance": 0.07981
}

Semantic roles & 50–950 ramp

primary

#40571A

secondary

#5D408D

accent

#4ADD82

background

#F7F8F5

surface

#EDEFE9

border

#C8CAC5

text

#090B04

muted

#7B7C79

Preview Lab

Preview with #40571A

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

Preview Lab → · Contrast checker → · Palette generator →