#51901D#51901D

#51901D is a mid, vivid yellow-green. Relative luminance 0.218; OKLCH L 58.9% C 0.157 H 134.6°. Best body text is #000000 at 5.36:1 contrast (WCAG AA passes).

Color values

HEX	#51901D
RGB	rgb(81, 144, 29)
HSL	hsl(93, 66%, 34%)
HSV	hsv(93, 80%, 56%)
CMYK	cmyk(43.8%, 0%, 79.9%, 43.5%)
CIE-LAB	lab(53.80, -39.41, 50.43)
CIE-LCH	lch(53.80, 64.00, 128.01°)
OKLab	oklab(58.86% -0.1104 0.1118)
OKLCH	oklch(58.86% 0.157 134.6)
XYZ	xyz(13.5881, 21.7838, 4.6509)
Luminance	0.2178 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51901D #5C1D90

analogous

#8B901D #51901D #1D9023

triadic

#51901D #1D5190 #901D51

tetradic

#51901D #1D8B90 #5C1D90 #90231D

square

#51901D #1D8B90 #5C1D90 #90231D

split-complementary

#51901D #231D90 #901D8B

monochromatic

#182A08 #345D13 #51901D #6EC327 #8DDB4C

Accessibility & contrast

On white

3.92

#51901D on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.36

#51901D on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #51901D

5.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51901D	#FFFFFF	#000000	##000000
##51901D	1.00	3.92	5.36	5.36
#FFFFFF	3.92	1.00	21.00	21.00
#000000	5.36	21.00	1.00	1.00
##000000	5.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#968400

Deuteranopia (green-blind)

#8D7F2A

Tritanopia (blue-blind)

#508A7B

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #51901d;
/* rgb */ color: rgb(81, 144, 29);
/* oklch */ color: oklch(58.9% 0.157 134.6);

Tailwind

colors: {
  custom: {
    50: '#88b163',
    500: '#51901d',
    950: '#000000',
  },
}

SCSS

$custom: #51901d;
$custom-light: #88b163;
$custom-dark: #000000;

JSON

{
  "hex": "#51901d",
  "rgb": {
    "r": 81,
    "g": 144,
    "b": 29
  },
  "hsl": {
    "h": 92.87,
    "s": 66.474,
    "l": 33.922
  },
  "oklch": {
    "l": 0.58855,
    "c": 0.15719,
    "h": 134.6
  },
  "luminance": 0.21785
}

Semantic roles & 50–950 ramp

primary

#51901D

secondary

#8A4BBD

accent

#3EE99C

background

#F8FAF6

surface

#F0F5EB

border

#CBCFC6

text

#0C1106

muted

#7D807A

Preview Lab

Preview with #51901D

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

Preview Lab → · Contrast checker → · Palette generator →