#3A581B#3A581B

#3A581B is a dark, moderate yellow-green. Relative luminance 0.080; OKLCH L 42.3% C 0.095 H 131.7°. Best body text is #FFFFFF at 8.10:1 contrast (WCAG AA passes).

Color values

HEX	#3A581B
RGB	rgb(58, 88, 27)
HSL	hsl(90, 53%, 23%)
HSV	hsv(90, 69%, 35%)
CMYK	cmyk(34.1%, 0%, 69.3%, 65.5%)
CIE-LAB	lab(33.90, -22.47, 30.85)
CIE-LCH	lch(33.90, 38.16, 126.06°)
OKLab	oklab(42.25% -0.0631 0.0709)
OKLCH	oklch(42.25% 0.095 131.7)
XYZ	xyz(5.4324, 7.9579, 2.2865)
Luminance	0.0796 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A581B #391B58

analogous

#58571B #3A581B #1C581B

triadic

#3A581B #1B3A58 #581B3A

tetradic

#3A581B #1B5857 #391B58 #581B1C

square

#3A581B #1B5857 #391B58 #581B1C

split-complementary

#3A581B #1B1C58 #571B58

monochromatic

#0F1707 #1B290D #3A581B #598729 #78B638

Accessibility & contrast

On white

8.10

#3A581B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.59

#3A581B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A581B

8.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A581B	#FFFFFF	#000000	##FFFFFF
##3A581B	1.00	8.10	2.59	8.10
#FFFFFF	8.10	1.00	21.00	1.00
#000000	2.59	21.00	1.00	21.00
##FFFFFF	8.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C5113

Deuteranopia (green-blind)

#584F20

Tritanopia (blue-blind)

#3B544B

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3a581b;
/* rgb */ color: rgb(58, 88, 27);
/* oklch */ color: oklch(42.3% 0.095 131.7);

Tailwind

colors: {
  custom: {
    50: '#73875b',
    500: '#3a581b',
    950: '#000000',
  },
}

SCSS

$custom: #3a581b;
$custom-light: #73875b;
$custom-dark: #000000;

JSON

{
  "hex": "#3a581b",
  "rgb": {
    "r": 58,
    "g": 88,
    "b": 27
  },
  "hsl": {
    "h": 89.508,
    "s": 53.043,
    "l": 22.549
  },
  "oklch": {
    "l": 0.42251,
    "c": 0.09491,
    "h": 131.7
  },
  "luminance": 0.07958
}

Semantic roles & 50–950 ramp

primary

#3A581B

secondary

#67418E

accent

#4BDC93

background

#F7F8F5

surface

#EDEFE9

border

#C8CAC5

text

#080B04

muted

#7B7C79

Preview Lab

Preview with #3A581B

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

Preview Lab → · Contrast checker → · Palette generator →