#51891F#51891F

#51891F is a mid, vivid yellow-green. Relative luminance 0.197; OKLCH L 57.0% C 0.147 H 133.8°. Best body text is #000000 at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#51891F
RGB	rgb(81, 137, 31)
HSL	hsl(92, 63%, 33%)
HSV	hsv(92, 77%, 54%)
CMYK	cmyk(40.9%, 0%, 77.4%, 46.3%)
CIE-LAB	lab(51.54, -36.27, 47.59)
CIE-LCH	lch(51.54, 59.84, 127.31°)
OKLab	oklab(57.01% -0.1019 0.1062)
OKLCH	oklch(57.01% 0.147 133.8)
XYZ	xyz(12.5861, 19.7389, 4.4429)
Luminance	0.1974 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51891F #571F89

analogous

#86891F #51891F #1F8922

triadic

#51891F #1F5189 #891F51

tetradic

#51891F #1F8689 #571F89 #89221F

square

#51891F #1F8689 #571F89 #89221F

split-complementary

#51891F #221F89 #891F86

monochromatic

#162508 #335714 #51891F #6FBB2A #8DD64C

Accessibility & contrast

On white

4.24

#51891F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.95

#51891F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #51891F

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51891F	#FFFFFF	#000000	##000000
##51891F	1.00	4.24	4.95	4.95
#FFFFFF	4.24	1.00	21.00	21.00
#000000	4.95	21.00	1.00	1.00
##000000	4.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8F7E07

Deuteranopia (green-blind)

#87792A

Tritanopia (blue-blind)

#518375

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #51891f;
/* rgb */ color: rgb(81, 137, 31);
/* oklch */ color: oklch(57.0% 0.147 133.8);

Tailwind

colors: {
  custom: {
    50: '#87ac63',
    500: '#51891f',
    950: '#000000',
  },
}

SCSS

$custom: #51891f;
$custom-light: #87ac63;
$custom-dark: #000000;

JSON

{
  "hex": "#51891f",
  "rgb": {
    "r": 81,
    "g": 137,
    "b": 31
  },
  "hsl": {
    "h": 91.698,
    "s": 63.095,
    "l": 32.941
  },
  "oklch": {
    "l": 0.5701,
    "c": 0.14717,
    "h": 133.8
  },
  "luminance": 0.1974
}

Semantic roles & 50–950 ramp

primary

#51891F

secondary

#854BB9

accent

#42E699

background

#F8FAF6

surface

#F0F4EB

border

#CBCEC6

text

#0C1006

muted

#7D7F7A

Preview Lab

Preview with #51891F

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

Preview Lab → · Contrast checker → · Palette generator →