#37511B#37511B

#37511B is a dark, moderate yellow-green. Relative luminance 0.068; OKLCH L 40.1% C 0.086 H 131.1°. Best body text is #FFFFFF at 8.92:1 contrast (WCAG AA passes).

Color values

HEX	#37511B
RGB	rgb(55, 81, 27)
HSL	hsl(89, 50%, 21%)
HSV	hsv(89, 67%, 32%)
CMYK	cmyk(32.1%, 0%, 66.7%, 68.2%)
CIE-LAB	lab(31.29, -20.12, 27.93)
CIE-LCH	lch(31.29, 34.42, 125.76°)
OKLab	oklab(40.08% -0.0564 0.0648)
OKLCH	oklch(40.08% 0.086 131.1)
XYZ	xyz(4.7158, 6.7761, 2.0962)
Luminance	0.0678 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37511B #351B51

analogous

#51501B #37511B #1C511B

triadic

#37511B #1B3751 #511B37

tetradic

#37511B #1B5150 #351B51 #511B1C

square

#37511B #1B5150 #351B51 #511B1C

split-complementary

#37511B #1B1C51 #501B51

monochromatic

#101708 #18230C #37511B #567F2A #75AD3A

Accessibility & contrast

On white

8.92

#37511B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#37511B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37511B

8.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37511B	#FFFFFF	#000000	##FFFFFF
##37511B	1.00	8.92	2.36	8.92
#FFFFFF	8.92	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554B15

Deuteranopia (green-blind)

#51491F

Tritanopia (blue-blind)

#384E46

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #37511b;
/* rgb */ color: rgb(55, 81, 27);
/* oklch */ color: oklch(40.1% 0.086 131.1);

Tailwind

colors: {
  custom: {
    50: '#70825a',
    500: '#37511b',
    950: '#000000',
  },
}

SCSS

$custom: #37511b;
$custom-light: #70825a;
$custom-dark: #000000;

JSON

{
  "hex": "#37511b",
  "rgb": {
    "r": 55,
    "g": 81,
    "b": 27
  },
  "hsl": {
    "h": 88.889,
    "s": 50,
    "l": 21.176
  },
  "oklch": {
    "l": 0.40083,
    "c": 0.0859,
    "h": 131.1
  },
  "luminance": 0.06776
}

Semantic roles & 50–950 ramp

primary

#37511B

secondary

#634187

accent

#4EDA91

background

#F6F7F5

surface

#ECEEE9

border

#C7C9C5

text

#080A04

muted

#7B7C79

Preview Lab

Preview with #37511B

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

Preview Lab → · Contrast checker → · Palette generator →