#3B581B#3B581B

#3B581B is a dark, moderate yellow-green. Relative luminance 0.080; OKLCH L 42.3% C 0.094 H 131.1°. Best body text is #FFFFFF at 8.08:1 contrast (WCAG AA passes).

Color values

HEX	#3B581B
RGB	rgb(59, 88, 27)
HSL	hsl(89, 53%, 23%)
HSV	hsv(89, 69%, 35%)
CMYK	cmyk(33%, 0%, 69.3%, 65.5%)
CIE-LAB	lab(33.96, -22.05, 30.93)
CIE-LCH	lch(33.96, 37.99, 125.48°)
OKLab	oklab(42.32% -0.062 0.0711)
OKLCH	oklch(42.32% 0.094 131.1)
XYZ	xyz(5.4911, 7.9882, 2.2893)
Luminance	0.0799 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B581B #381B58

analogous

#58571B #3B581B #1C581B

triadic

#3B581B #1B3B58 #581B3B

tetradic

#3B581B #1B5857 #381B58 #581B1C

square

#3B581B #1B5857 #381B58 #581B1C

split-complementary

#3B581B #1B1C58 #571B58

monochromatic

#101707 #1C290D #3B581B #5A8729 #7AB638

Accessibility & contrast

On white

8.08

#3B581B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#3B581B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B581B

8.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B581B	#FFFFFF	#000000	##FFFFFF
##3B581B	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)

#5C5113

Deuteranopia (green-blind)

#584F20

Tritanopia (blue-blind)

#3C544B

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3b581b;
/* rgb */ color: rgb(59, 88, 27);
/* oklch */ color: oklch(42.3% 0.094 131.1);

Tailwind

colors: {
  custom: {
    50: '#73875b',
    500: '#3b581b',
    950: '#000000',
  },
}

SCSS

$custom: #3b581b;
$custom-light: #73875b;
$custom-dark: #000000;

JSON

{
  "hex": "#3b581b",
  "rgb": {
    "r": 59,
    "g": 88,
    "b": 27
  },
  "hsl": {
    "h": 88.525,
    "s": 53.043,
    "l": 22.549
  },
  "oklch": {
    "l": 0.42319,
    "c": 0.09431,
    "h": 131.1
  },
  "luminance": 0.07988
}

Semantic roles & 50–950 ramp

primary

#3B581B

secondary

#66418E

accent

#4BDC90

background

#F7F8F5

surface

#EDEFE9

border

#C8CAC5

text

#080B04

muted

#7B7C79

Preview Lab

Preview with #3B581B

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

Preview Lab → · Contrast checker → · Palette generator →