#39731B#39731B

#39731B is a mid, vivid yellow-green. Relative luminance 0.132; OKLCH L 49.8% C 0.134 H 137.2°. Best body text is #FFFFFF at 5.77:1 contrast (WCAG AA passes).

Color values

HEX	#39731B
RGB	rgb(57, 115, 27)
HSL	hsl(100, 62%, 28%)
HSV	hsv(100, 77%, 45%)
CMYK	cmyk(50.4%, 0%, 76.5%, 54.9%)
CIE-LAB	lab(43.08, -35.38, 40.37)
CIE-LCH	lch(43.08, 53.68, 131.23°)
OKLab	oklab(49.75% -0.0981 0.0909)
OKLCH	oklch(49.75% 0.134 137.2)
XYZ	xyz(8.0157, 13.2099, 3.1641)
Luminance	0.1321 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#39731B #551B73

analogous

#65731B #39731B #1B7329

triadic

#39731B #1B3973 #731B39

tetradic

#39731B #1B6573 #551B73 #73291B

square

#39731B #1B6573 #551B73 #73291B

split-complementary

#39731B #291B73 #731B65

monochromatic

#0C1906 #20410F #39731B #52A527 #6CD038

Accessibility & contrast

On white

5.77

#39731B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.64

#39731B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #39731B

5.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##39731B	#FFFFFF	#000000	##FFFFFF
##39731B	1.00	5.77	3.64	5.77
#FFFFFF	5.77	1.00	21.00	1.00
#000000	3.64	21.00	1.00	21.00
##FFFFFF	5.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#77690A

Deuteranopia (green-blind)

#6F6424

Tritanopia (blue-blind)

#366F62

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #39731b;
/* rgb */ color: rgb(57, 115, 27);
/* oklch */ color: oklch(49.8% 0.134 137.2);

Tailwind

colors: {
  custom: {
    50: '#769c5e',
    500: '#39731b',
    950: '#000000',
  },
}

SCSS

$custom: #39731b;
$custom-light: #769c5e;
$custom-dark: #000000;

JSON

{
  "hex": "#39731b",
  "rgb": {
    "r": 57,
    "g": 115,
    "b": 27
  },
  "hsl": {
    "h": 99.545,
    "s": 61.972,
    "l": 27.843
  },
  "oklch": {
    "l": 0.4975,
    "c": 0.13373,
    "h": 137.2
  },
  "luminance": 0.1321
}

Semantic roles & 50–950 ramp

primary

#39731B

secondary

#8542A8

accent

#43E5AE

background

#F7F9F5

surface

#EDF2E9

border

#C8CCC5

text

#090E05

muted

#7B7E79

Preview Lab

Preview with #39731B

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

Preview Lab → · Contrast checker → · Palette generator →