#40571D#40571D

#40571D is a dark, moderate yellow-green. Relative luminance 0.080; OKLCH L 42.4% C 0.088 H 128.0°. Best body text is #FFFFFF at 8.08:1 contrast (WCAG AA passes).

Color values

HEX	#40571D
RGB	rgb(64, 87, 29)
HSL	hsl(84, 50%, 23%)
HSV	hsv(84, 67%, 34%)
CMYK	cmyk(26.4%, 0%, 66.7%, 65.9%)
CIE-LAB	lab(33.97, -19.18, 30.06)
CIE-LCH	lch(33.97, 35.66, 122.54°)
OKLab	oklab(42.42% -0.0543 0.0694)
OKLCH	oklch(42.42% 0.088 128)
XYZ	xyz(5.7443, 7.9950, 2.4027)
Luminance	0.0799 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40571D #341D57

analogous

#57511D #40571D #23571D

triadic

#40571D #1D4057 #571D40

tetradic

#40571D #1D5751 #341D57 #571D23

square

#40571D #1D5751 #341D57 #571D23

split-complementary

#40571D #1D2357 #511D57

monochromatic

#111708 #1E290E #40571D #62852C #84B33C

Accessibility & contrast

On white

8.08

#40571D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#40571D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40571D

8.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40571D	#FFFFFF	#000000	##FFFFFF
##40571D	1.00	8.08	2.60	8.08
#FFFFFF	8.08	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B5116

Deuteranopia (green-blind)

#584F21

Tritanopia (blue-blind)

#42534B

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #40571d;
/* rgb */ color: rgb(64, 87, 29);
/* oklch */ color: oklch(42.4% 0.088 128.0);

Tailwind

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

SCSS

$custom: #40571d;
$custom-light: #77865c;
$custom-dark: #000000;

JSON

{
  "hex": "#40571d",
  "rgb": {
    "r": 64,
    "g": 87,
    "b": 29
  },
  "hsl": {
    "h": 83.793,
    "s": 50,
    "l": 22.745
  },
  "oklch": {
    "l": 0.42424,
    "c": 0.08811,
    "h": 128
  },
  "luminance": 0.07995
}

Semantic roles & 50–950 ramp

primary

#40571D

secondary

#60448C

accent

#4EDA85

background

#F7F8F5

surface

#EDEFE9

border

#C8CAC5

text

#090B04

muted

#7B7C79

Preview Lab

Preview with #40571D

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

Preview Lab → · Contrast checker → · Palette generator →