#40571F#40571F

#40571F is a dark, moderate yellow-green. Relative luminance 0.080; OKLCH L 42.4% C 0.086 H 128.4°. Best body text is #FFFFFF at 8.07:1 contrast (WCAG AA passes).

Color values

HEX	#40571F
RGB	rgb(64, 87, 31)
HSL	hsl(85, 47%, 23%)
HSV	hsv(85, 64%, 34%)
CMYK	cmyk(26.4%, 0%, 64.4%, 65.9%)
CIE-LAB	lab(33.99, -18.98, 29.07)
CIE-LCH	lch(33.99, 34.72, 123.14°)
OKLab	oklab(42.45% -0.0535 0.0676)
OKLCH	oklch(42.45% 0.086 128.4)
XYZ	xyz(5.7698, 8.0052, 2.5372)
Luminance	0.0800 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40571F #361F57

analogous

#57521F #40571F #24571F

triadic

#40571F #1F4057 #571F40

tetradic

#40571F #1F5752 #361F57 #571F24

square

#40571F #1F5752 #361F57 #571F24

split-complementary

#40571F #1F2457 #521F57

monochromatic

#111708 #1F2A0F #40571F #61842F #82B13F

Accessibility & contrast

On white

8.07

#40571F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#40571F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40571F

8.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40571F	#FFFFFF	#000000	##FFFFFF
##40571F	1.00	8.07	2.60	8.07
#FFFFFF	8.07	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B5119

Deuteranopia (green-blind)

#584F23

Tritanopia (blue-blind)

#42534B

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #40571f;
/* rgb */ color: rgb(64, 87, 31);
/* oklch */ color: oklch(42.4% 0.086 128.4);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#40571f",
  "rgb": {
    "r": 64,
    "g": 87,
    "b": 31
  },
  "hsl": {
    "h": 84.643,
    "s": 47.458,
    "l": 23.137
  },
  "oklch": {
    "l": 0.42448,
    "c": 0.0862,
    "h": 128.4
  },
  "luminance": 0.08005
}

Semantic roles & 50–950 ramp

primary

#40571F

secondary

#63468C

accent

#51D788

background

#F7F8F5

surface

#EDEFE9

border

#C8CAC5

text

#090B04

muted

#7B7C79

Preview Lab

Preview with #40571F

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

Preview Lab → · Contrast checker → · Palette generator →