#51891C#51891C

#51891C is a mid, vivid yellow-green. Relative luminance 0.197; OKLCH L 57.0% C 0.149 H 133.6°. Best body text is #000000 at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#51891C
RGB	rgb(81, 137, 28)
HSL	hsl(91, 66%, 32%)
HSV	hsv(91, 80%, 54%)
CMYK	cmyk(40.9%, 0%, 79.6%, 46.3%)
CIE-LAB	lab(51.52, -36.45, 48.61)
CIE-LCH	lch(51.52, 60.76, 126.87°)
OKLab	oklab(56.99% -0.1026 0.1079)
OKLCH	oklch(56.99% 0.149 133.6)
XYZ	xyz(12.5484, 19.7239, 4.2443)
Luminance	0.1972 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51891C #541C89

analogous

#87891C #51891C #1C891E

triadic

#51891C #1C5189 #891C51

tetradic

#51891C #1C8789 #541C89 #891E1C

square

#51891C #1C8789 #541C89 #891E1C

split-complementary

#51891C #1E1C89 #891C87

monochromatic

#152307 #335612 #51891C #6FBC26 #8ED946

Accessibility & contrast

On white

4.25

#51891C on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.94

#51891C on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #51891C

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51891C	#FFFFFF	#000000	##000000
##51891C	1.00	4.25	4.94	4.94
#FFFFFF	4.25	1.00	21.00	21.00
#000000	4.94	21.00	1.00	1.00
##000000	4.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8F7E00

Deuteranopia (green-blind)

#877928

Tritanopia (blue-blind)

#518375

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #51891c;
/* rgb */ color: rgb(81, 137, 28);
/* oklch */ color: oklch(57.0% 0.149 133.6);

Tailwind

colors: {
  custom: {
    50: '#87ac62',
    500: '#51891c',
    950: '#000000',
  },
}

SCSS

$custom: #51891c;
$custom-light: #87ac62;
$custom-dark: #000000;

JSON

{
  "hex": "#51891c",
  "rgb": {
    "r": 81,
    "g": 137,
    "b": 28
  },
  "hsl": {
    "h": 90.826,
    "s": 66.061,
    "l": 32.353
  },
  "oklch": {
    "l": 0.56991,
    "c": 0.14884,
    "h": 133.6
  },
  "luminance": 0.19724
}

Semantic roles & 50–950 ramp

primary

#51891C

secondary

#8246BB

accent

#3FE996

background

#F8FAF6

surface

#F0F4EB

border

#CBCEC6

text

#0C1005

muted

#7D7F7A

Preview Lab

Preview with #51891C

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

Preview Lab → · Contrast checker → · Palette generator →