#51A41F#51A41F

#51A41F is a light, vivid yellow-green. Relative luminance 0.284; OKLCH L 64.2% C 0.181 H 136.9°. Best body text is #000000 at 6.68:1 contrast (WCAG AA passes).

Color values

HEX	#51A41F
RGB	rgb(81, 164, 31)
HSL	hsl(97, 68%, 38%)
HSV	hsv(97, 81%, 64%)
CMYK	cmyk(50.6%, 0%, 81.1%, 35.7%)
CIE-LAB	lab(60.25, -47.40, 55.84)
CIE-LCH	lch(60.25, 73.25, 130.33°)
OKLab	oklab(64.16% -0.1318 0.1235)
OKLCH	oklch(64.16% 0.181 136.9)
XYZ	xyz(16.9156, 28.3980, 5.8861)
Luminance	0.2840 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A41F #721FA4

analogous

#93A41F #51A41F #1FA430

triadic

#51A41F #1F51A4 #A41F51

tetradic

#51A41F #1F93A4 #721FA4 #A4301F

square

#51A41F #1F93A4 #721FA4 #A4301F

split-complementary

#51A41F #301FA4 #A41F93

monochromatic

#1E3D0C #387115 #51A41F #6BD72A #8EE05D

Accessibility & contrast

On white

3.14

#51A41F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.68

#51A41F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #51A41F

6.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A41F	#FFFFFF	#000000	##000000
##51A41F	1.00	3.14	6.68	6.68
#FFFFFF	3.14	1.00	21.00	21.00
#000000	6.68	21.00	1.00	1.00
##000000	6.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AA9500

Deuteranopia (green-blind)

#9F8F2F

Tritanopia (blue-blind)

#4C9E8C

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #51a41f;
/* rgb */ color: rgb(81, 164, 31);
/* oklch */ color: oklch(64.2% 0.181 136.9);

Tailwind

colors: {
  custom: {
    50: '#8ac067',
    500: '#51a41f',
    950: '#000000',
  },
}

SCSS

$custom: #51a41f;
$custom-light: #8ac067;
$custom-dark: #000000;

JSON

{
  "hex": "#51a41f",
  "rgb": {
    "r": 81,
    "g": 164,
    "b": 31
  },
  "hsl": {
    "h": 97.444,
    "s": 68.205,
    "l": 38.235
  },
  "oklch": {
    "l": 0.64158,
    "c": 0.18061,
    "h": 136.9
  },
  "luminance": 0.28399
}

Semantic roles & 50–950 ramp

primary

#51A41F

secondary

#9D5AC5

accent

#3DEBAA

background

#F8FBF6

surface

#F0F7EB

border

#CBD0C6

text

#0D1207

muted

#7D817A

Preview Lab

Preview with #51A41F

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

Preview Lab → · Contrast checker → · Palette generator →