#51871A#51871A

#51871A is a mid, vivid yellow-green. Relative luminance 0.192; OKLCH L 56.4% C 0.147 H 133.1°. Best body text is #000000 at 4.83:1 contrast (WCAG AA passes).

Color values

HEX	#51871A
RGB	rgb(81, 135, 26)
HSL	hsl(90, 68%, 32%)
HSV	hsv(90, 81%, 53%)
CMYK	cmyk(40%, 0%, 80.7%, 47.1%)
CIE-LAB	lab(50.86, -35.69, 48.64)
CIE-LCH	lch(50.86, 60.33, 126.27°)
OKLab	oklab(56.45% -0.1006 0.1076)
OKLCH	oklch(56.45% 0.147 133.1)
XYZ	xyz(12.2436, 19.1513, 4.0285)
Luminance	0.1915 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51871A #501A87

analogous

#87871A #51871A #1A871A

triadic

#51871A #1A5187 #871A51

tetradic

#51871A #1A8787 #501A87 #871A1A

square

#51871A #1A8787 #501A87 #871A1A

split-complementary

#51871A #1A1A87 #871A87

monochromatic

#132006 #325410 #51871A #70BA24 #8EDA41

Accessibility & contrast

On white

4.35

#51871A on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.83

#51871A on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #51871A

4.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51871A	#FFFFFF	#000000	##000000
##51871A	1.00	4.35	4.83	4.83
#FFFFFF	4.35	1.00	21.00	21.00
#000000	4.83	21.00	1.00	1.00
##000000	4.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8D7C00

Deuteranopia (green-blind)

#857826

Tritanopia (blue-blind)

#518173

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #51871a;
/* rgb */ color: rgb(81, 135, 26);
/* oklch */ color: oklch(56.4% 0.147 133.1);

Tailwind

colors: {
  custom: {
    50: '#87aa61',
    500: '#51871a',
    950: '#000000',
  },
}

SCSS

$custom: #51871a;
$custom-light: #87aa61;
$custom-dark: #000000;

JSON

{
  "hex": "#51871a",
  "rgb": {
    "r": 81,
    "g": 135,
    "b": 26
  },
  "hsl": {
    "h": 89.725,
    "s": 67.702,
    "l": 31.569
  },
  "oklch": {
    "l": 0.56447,
    "c": 0.14734,
    "h": 133.1
  },
  "luminance": 0.19152
}

Semantic roles & 50–950 ramp

primary

#51871A

secondary

#7E42BA

accent

#3DEB93

background

#F8FAF6

surface

#F0F4EB

border

#CBCEC6

text

#0C1005

muted

#7D7F7A

Preview Lab

Preview with #51871A

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

Preview Lab → · Contrast checker → · Palette generator →