#51931B#51931B

#51931B is a mid, vivid yellow-green. Relative luminance 0.227; OKLCH L 59.6% C 0.162 H 134.9°. Best body text is #000000 at 5.54:1 contrast (WCAG AA passes).

Color values

HEX	#51931B
RGB	rgb(81, 147, 27)
HSL	hsl(93, 69%, 34%)
HSV	hsv(93, 82%, 58%)
CMYK	cmyk(44.9%, 0%, 81.6%, 42.4%)
CIE-LAB	lab(54.76, -40.77, 51.95)
CIE-LCH	lch(54.76, 66.04, 128.13°)
OKLab	oklab(59.64% -0.1142 0.1147)
OKLCH	oklch(59.64% 0.162 134.9)
XYZ	xyz(14.0246, 22.6951, 4.6783)
Luminance	0.2270 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51931B #5D1B93

analogous

#8D931B #51931B #1B9321

triadic

#51931B #1B5193 #931B51

tetradic

#51931B #1B8D93 #5D1B93 #93211B

square

#51931B #1B8D93 #5D1B93 #93211B

split-complementary

#51931B #211B93 #931B8D

monochromatic

#182C08 #355F12 #51931B #6DC724 #8DDE4B

Accessibility & contrast

On white

3.79

#51931B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.54

#51931B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #51931B

5.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51931B	#FFFFFF	#000000	##000000
##51931B	1.00	3.79	5.54	5.54
#FFFFFF	3.79	1.00	21.00	21.00
#000000	5.54	21.00	1.00	1.00
##000000	5.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#998600

Deuteranopia (green-blind)

#908129

Tritanopia (blue-blind)

#4F8D7D

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #51931b;
/* rgb */ color: rgb(81, 147, 27);
/* oklch */ color: oklch(59.6% 0.162 134.9);

Tailwind

colors: {
  custom: {
    50: '#88b363',
    500: '#51931b',
    950: '#000000',
  },
}

SCSS

$custom: #51931b;
$custom-light: #88b363;
$custom-dark: #000000;

JSON

{
  "hex": "#51931b",
  "rgb": {
    "r": 81,
    "g": 147,
    "b": 27
  },
  "hsl": {
    "h": 93,
    "s": 68.966,
    "l": 34.118
  },
  "oklch": {
    "l": 0.59639,
    "c": 0.1619,
    "h": 134.9
  },
  "luminance": 0.22696
}

Semantic roles & 50–950 ramp

primary

#51931B

secondary

#8B4AC0

accent

#3CEC9D

background

#F8FBF6

surface

#F0F6EB

border

#CBD0C6

text

#0C1106

muted

#7D807A

Preview Lab

Preview with #51931B

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

Preview Lab → · Contrast checker → · Palette generator →