#51971B#51971B

#51971B is a mid, vivid yellow-green. Relative luminance 0.240; OKLCH L 60.7% C 0.167 H 135.4°. Best body text is #000000 at 5.79:1 contrast (WCAG AA passes).

Color values

HEX	#51971B
RGB	rgb(81, 151, 27)
HSL	hsl(94, 70%, 35%)
HSV	hsv(94, 82%, 59%)
CMYK	cmyk(46.4%, 0%, 82.1%, 40.8%)
CIE-LAB	lab(56.05, -42.43, 53.13)
CIE-LCH	lch(56.05, 67.99, 128.61°)
OKLab	oklab(60.7% -0.1187 0.1172)
OKLCH	oklch(60.7% 0.167 135.4)
XYZ	xyz(14.6574, 23.9608, 4.8892)
Luminance	0.2396 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51971B #611B97

analogous

#8F971B #51971B #1B9723

triadic

#51971B #1B5197 #971B51

tetradic

#51971B #1B8F97 #611B97 #97231B

square

#51971B #1B8F97 #611B97 #97231B

split-complementary

#51971B #231B97 #971B8F

monochromatic

#192F08 #356312 #51971B #6DCB24 #8DDF4D

Accessibility & contrast

On white

3.63

#51971B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.79

#51971B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #51971B

5.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51971B	#FFFFFF	#000000	##000000
##51971B	1.00	3.63	5.79	5.79
#FFFFFF	3.63	1.00	21.00	21.00
#000000	5.79	21.00	1.00	1.00
##000000	5.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9D8A00

Deuteranopia (green-blind)

#94842A

Tritanopia (blue-blind)

#4F9180

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #51971b;
/* rgb */ color: rgb(81, 151, 27);
/* oklch */ color: oklch(60.7% 0.167 135.4);

Tailwind

colors: {
  custom: {
    50: '#89b663',
    500: '#51971b',
    950: '#000000',
  },
}

SCSS

$custom: #51971b;
$custom-light: #89b663;
$custom-dark: #000000;

JSON

{
  "hex": "#51971b",
  "rgb": {
    "r": 81,
    "g": 151,
    "b": 27
  },
  "hsl": {
    "h": 93.871,
    "s": 69.663,
    "l": 34.902
  },
  "oklch": {
    "l": 0.607,
    "c": 0.16681,
    "h": 135.4
  },
  "luminance": 0.23962
}

Semantic roles & 50–950 ramp

primary

#51971B

secondary

#8E4CC1

accent

#3BEC9F

background

#F8FBF6

surface

#F0F6EB

border

#CBD0C6

text

#0C1106

muted

#7D807A

Preview Lab

Preview with #51971B

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

Preview Lab → · Contrast checker → · Palette generator →