#42571F#42571F

#42571F is a dark, moderate yellow-green. Relative luminance 0.081; OKLCH L 42.6% C 0.085 H 127.0°. Best body text is #FFFFFF at 8.03:1 contrast (WCAG AA passes).

Color values

HEX	#42571F
RGB	rgb(66, 87, 31)
HSL	hsl(83, 47%, 23%)
HSV	hsv(83, 64%, 34%)
CMYK	cmyk(24.1%, 0%, 64.4%, 65.9%)
CIE-LAB	lab(34.14, -18.10, 29.27)
CIE-LCH	lch(34.14, 34.41, 121.74°)
OKLab	oklab(42.6% -0.0512 0.068)
OKLCH	oklch(42.6% 0.085 127)
XYZ	xyz(5.9023, 8.0735, 2.5434)
Luminance	0.0807 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#42571F #341F57

analogous

#57501F #42571F #26571F

triadic

#42571F #1F4257 #571F42

tetradic

#42571F #1F5750 #341F57 #571F26

square

#42571F #1F5750 #341F57 #571F26

split-complementary

#42571F #1F2657 #501F57

monochromatic

#111708 #202A0F #42571F #64842F #86B13F

Accessibility & contrast

On white

8.03

#42571F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#42571F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #42571F

8.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##42571F	#FFFFFF	#000000	##FFFFFF
##42571F	1.00	8.03	2.61	8.03
#FFFFFF	8.03	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B5119

Deuteranopia (green-blind)

#595023

Tritanopia (blue-blind)

#44534B

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #42571f;
/* rgb */ color: rgb(66, 87, 31);
/* oklch */ color: oklch(42.6% 0.085 127.0);

Tailwind

colors: {
  custom: {
    50: '#78865d',
    500: '#42571f',
    950: '#000000',
  },
}

SCSS

$custom: #42571f;
$custom-light: #78865d;
$custom-dark: #000000;

JSON

{
  "hex": "#42571f",
  "rgb": {
    "r": 66,
    "g": 87,
    "b": 31
  },
  "hsl": {
    "h": 82.5,
    "s": 47.458,
    "l": 23.137
  },
  "oklch": {
    "l": 0.426,
    "c": 0.0851,
    "h": 127
  },
  "luminance": 0.08074
}

Semantic roles & 50–950 ramp

primary

#42571F

secondary

#60468C

accent

#51D783

background

#F7F8F5

surface

#EDEFE9

border

#C8CAC5

text

#090B04

muted

#7B7C79

Preview Lab

Preview with #42571F

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

Preview Lab → · Contrast checker → · Palette generator →