#51921B#51921B

#51921B is a mid, vivid yellow-green. Relative luminance 0.224; OKLCH L 59.4% C 0.161 H 134.8°. Best body text is #000000 at 5.48:1 contrast (WCAG AA passes).

Color values

HEX	#51921B
RGB	rgb(81, 146, 27)
HSL	hsl(93, 69%, 34%)
HSV	hsv(93, 82%, 57%)
CMYK	cmyk(44.5%, 0%, 81.5%, 42.7%)
CIE-LAB	lab(54.43, -40.36, 51.65)
CIE-LCH	lch(54.43, 65.54, 128.00°)
OKLab	oklab(59.37% -0.1131 0.1141)
OKLCH	oklch(59.37% 0.161 134.8)
XYZ	xyz(13.8698, 22.3854, 4.6267)
Luminance	0.2239 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51921B #5C1B92

analogous

#8D921B #51921B #1B9221

triadic

#51921B #1B5192 #921B51

tetradic

#51921B #1B8D92 #5C1B92 #92211B

square

#51921B #1B8D92 #5C1B92 #92211B

split-complementary

#51921B #211B92 #921B8D

monochromatic

#182B08 #345E11 #51921B #6EC625 #8DDE4A

Accessibility & contrast

On white

3.83

#51921B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.48

#51921B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #51921B

5.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51921B	#FFFFFF	#000000	##000000
##51921B	1.00	3.83	5.48	5.48
#FFFFFF	3.83	1.00	21.00	21.00
#000000	5.48	21.00	1.00	1.00
##000000	5.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#988600

Deuteranopia (green-blind)

#8F8029

Tritanopia (blue-blind)

#508C7C

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #51921b;
/* rgb */ color: rgb(81, 146, 27);
/* oklch */ color: oklch(59.4% 0.161 134.8);

Tailwind

colors: {
  custom: {
    50: '#88b263',
    500: '#51921b',
    950: '#000000',
  },
}

SCSS

$custom: #51921b;
$custom-light: #88b263;
$custom-dark: #000000;

JSON

{
  "hex": "#51921b",
  "rgb": {
    "r": 81,
    "g": 146,
    "b": 27
  },
  "hsl": {
    "h": 92.773,
    "s": 68.786,
    "l": 33.922
  },
  "oklch": {
    "l": 0.59374,
    "c": 0.16066,
    "h": 134.8
  },
  "luminance": 0.22386
}

Semantic roles & 50–950 ramp

primary

#51921B

secondary

#8A49BF

accent

#3CEC9C

background

#F8FBF6

surface

#F0F6EB

border

#CBD0C6

text

#0C1106

muted

#7D807A

Preview Lab

Preview with #51921B

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

Preview Lab → · Contrast checker → · Palette generator →