#51A11F#51A11F

#51A11F is a light, vivid yellow-green. Relative luminance 0.273; OKLCH L 63.4% C 0.177 H 136.6°. Best body text is #000000 at 6.47:1 contrast (WCAG AA passes).

Color values

HEX	#51A11F
RGB	rgb(81, 161, 31)
HSL	hsl(97, 68%, 38%)
HSV	hsv(97, 81%, 63%)
CMYK	cmyk(49.7%, 0%, 80.7%, 36.9%)
CIE-LAB	lab(59.28, -46.23, 54.94)
CIE-LCH	lch(59.28, 71.81, 130.08°)
OKLab	oklab(63.37% -0.1287 0.1216)
OKLCH	oklch(63.37% 0.177 136.6)
XYZ	xyz(16.3851, 27.3369, 5.7092)
Luminance	0.2734 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A11F #6F1FA1

analogous

#92A11F #51A11F #1FA12E

triadic

#51A11F #1F51A1 #A11F51

tetradic

#51A11F #1F92A1 #6F1FA1 #A12E1F

square

#51A11F #1F92A1 #6F1FA1 #A12E1F

split-complementary

#51A11F #2E1FA1 #A11F92

monochromatic

#1D3A0B #376E15 #51A11F #6BD429 #8EDF5B

Accessibility & contrast

On white

3.25

#51A11F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.47

#51A11F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #51A11F

6.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A11F	#FFFFFF	#000000	##000000
##51A11F	1.00	3.25	6.47	6.47
#FFFFFF	3.25	1.00	21.00	21.00
#000000	6.47	21.00	1.00	1.00
##000000	6.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A79300

Deuteranopia (green-blind)

#9C8C2E

Tritanopia (blue-blind)

#4D9B89

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #51a11f;
/* rgb */ color: rgb(81, 161, 31);
/* oklch */ color: oklch(63.4% 0.177 136.6);

Tailwind

colors: {
  custom: {
    50: '#8abd66',
    500: '#51a11f',
    950: '#000000',
  },
}

SCSS

$custom: #51a11f;
$custom-light: #8abd66;
$custom-dark: #000000;

JSON

{
  "hex": "#51a11f",
  "rgb": {
    "r": 81,
    "g": 161,
    "b": 31
  },
  "hsl": {
    "h": 96.923,
    "s": 67.708,
    "l": 37.647
  },
  "oklch": {
    "l": 0.63367,
    "c": 0.17704,
    "h": 136.6
  },
  "luminance": 0.27338
}

Semantic roles & 50–950 ramp

primary

#51A11F

secondary

#9A58C4

accent

#3DEBA8

background

#F8FBF6

surface

#F0F7EB

border

#CBD0C6

text

#0D1206

muted

#7D817A

Preview Lab

Preview with #51A11F

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

Preview Lab → · Contrast checker → · Palette generator →