#51BB45#51BB45

#51BB45 is a light, vivid green. Relative luminance 0.377; OKLCH L 70.5% C 0.185 H 141.7°. Best body text is #000000 at 8.54:1 contrast (WCAG AA passes).

Color values

HEX	#51BB45
RGB	rgb(81, 187, 69)
HSL	hsl(114, 46%, 50%)
HSV	hsv(114, 63%, 73%)
CMYK	cmyk(56.7%, 0%, 63.1%, 26.7%)
CIE-LAB	lab(67.81, -53.17, 49.32)
CIE-LCH	lch(67.81, 72.52, 137.15°)
OKLab	oklab(70.48% -0.1451 0.1148)
OKLCH	oklch(70.48% 0.185 141.7)
XYZ	xyz(22.2367, 37.7177, 11.7375)
Luminance	0.3772 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51BB45 #AF45BB

analogous

#8CBB45 #51BB45 #45BB74

triadic

#51BB45 #4551BB #BB4551

tetradic

#51BB45 #458CBB #AF45BB #BB7445

square

#51BB45 #458CBB #AF45BB #BB7445

split-complementary

#51BB45 #7445BB #BB458C

monochromatic

#2A6224 #3D8F34 #51BB45 #7BCB72 #A5DC9F

Accessibility & contrast

On white

2.46

#51BB45 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.54

#51BB45 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BB45

8.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51BB45	#FFFFFF	#000000	##000000
##51BB45	1.00	2.46	8.54	8.54
#FFFFFF	2.46	1.00	21.00	21.00
#000000	8.54	21.00	1.00	1.00
##000000	8.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BFAB37

Deuteranopia (green-blind)

#B2A24F

Tritanopia (blue-blind)

#42B5A2

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #51bb45;
/* rgb */ color: rgb(81, 187, 69);
/* oklch */ color: oklch(70.5% 0.185 141.7);

Tailwind

colors: {
  custom: {
    50: '#8cd07d',
    500: '#51bb45',
    950: '#000000',
  },
}

SCSS

$custom: #51bb45;
$custom-light: #8cd07d;
$custom-dark: #000000;

JSON

{
  "hex": "#51bb45",
  "rgb": {
    "r": 81,
    "g": 187,
    "b": 69
  },
  "hsl": {
    "h": 113.898,
    "s": 46.457,
    "l": 50.196
  },
  "oklch": {
    "l": 0.70476,
    "c": 0.18498,
    "h": 141.7
  },
  "luminance": 0.3772
}

Semantic roles & 50–950 ramp

primary

#51BB45

secondary

#C394C8

accent

#52D6C9

background

#F9FCF7

surface

#F1F9EE

border

#CBD2C9

text

#0D140A

muted

#7E827C

Preview Lab

Preview with #51BB45

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

Preview Lab → · Contrast checker → · Palette generator →