#51971D#51971D

#51971D is a mid, vivid yellow-green. Relative luminance 0.240; OKLCH L 60.7% C 0.166 H 135.5°. Best body text is #000000 at 5.79:1 contrast (WCAG AA passes).

Color values

HEX	#51971D
RGB	rgb(81, 151, 29)
HSL	hsl(94, 68%, 35%)
HSV	hsv(94, 81%, 59%)
CMYK	cmyk(46.4%, 0%, 80.8%, 40.8%)
CIE-LAB	lab(56.06, -42.32, 52.55)
CIE-LCH	lch(56.06, 67.47, 128.85°)
OKLab	oklab(60.71% -0.1183 0.1163)
OKLCH	oklch(60.71% 0.166 135.5)
XYZ	xyz(14.6814, 23.9703, 5.0153)
Luminance	0.2397 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51971D #631D97

analogous

#8E971D #51971D #1D9726

triadic

#51971D #1D5197 #971D51

tetradic

#51971D #1D8E97 #631D97 #97261D

square

#51971D #1D8E97 #631D97 #97261D

split-complementary

#51971D #261D97 #971D8E

monochromatic

#1A3009 #356413 #51971D #6DCA27 #8DDE51

Accessibility & contrast

On white

3.62

#51971D on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.79

#51971D on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #51971D

5.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51971D	#FFFFFF	#000000	##000000
##51971D	1.00	3.62	5.79	5.79
#FFFFFF	3.62	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)

#93842B

Tritanopia (blue-blind)

#4F9181

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #51971d;
/* rgb */ color: rgb(81, 151, 29);
/* oklch */ color: oklch(60.7% 0.166 135.5);

Tailwind

colors: {
  custom: {
    50: '#89b664',
    500: '#51971d',
    950: '#000000',
  },
}

SCSS

$custom: #51971d;
$custom-light: #89b664;
$custom-dark: #000000;

JSON

{
  "hex": "#51971d",
  "rgb": {
    "r": 81,
    "g": 151,
    "b": 29
  },
  "hsl": {
    "h": 94.426,
    "s": 67.778,
    "l": 35.294
  },
  "oklch": {
    "l": 0.60711,
    "c": 0.16587,
    "h": 135.5
  },
  "luminance": 0.23971
}

Semantic roles & 50–950 ramp

primary

#51971D

secondary

#904FC0

accent

#3DEBA1

background

#F8FBF6

surface

#F0F6EB

border

#CBD0C6

text

#0C1106

muted

#7D807A

Preview Lab

Preview with #51971D

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

Preview Lab → · Contrast checker → · Palette generator →