#51FC69#51FC69

#51FC69 is a very light, highly saturated green. Relative luminance 0.724; OKLCH L 87.4% C 0.236 H 145.4°. Best body text is #000000 at 15.48:1 contrast (WCAG AA passes).

Color values

HEX	#51FC69
RGB	rgb(81, 252, 105)
HSL	hsl(128, 97%, 65%)
HSV	hsv(128, 68%, 99%)
CMYK	cmyk(67.9%, 0%, 58.3%, 1.2%)
CIE-LAB	lab(88.15, -71.92, 56.80)
CIE-LCH	lch(88.15, 91.64, 141.70°)
OKLab	oklab(87.39% -0.1943 0.134)
OKLCH	oklch(87.39% 0.236 145.4)
XYZ	xyz(40.7508, 72.3857, 25.1861)
Luminance	0.7239 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51FC69 #FC51E4

analogous

#8EFC51 #51FC69 #51FCBE

triadic

#51FC69 #6951FC #FC6951

tetradic

#51FC69 #518EFC #FC51E4 #FCBE51

square

#51FC69 #518EFC #FC51E4 #FCBE51

split-complementary

#51FC69 #BE51FC #FC518E

monochromatic

#04CF20 #15FB35 #51FC69 #8DFD9D #C9FED1

Accessibility & contrast

On white

1.36

#51FC69 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.48

#51FC69 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51FC69

15.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51FC69	#FFFFFF	#000000	##000000
##51FC69	1.00	1.36	15.48	15.48
#FFFFFF	1.36	1.00	21.00	21.00
#000000	15.48	21.00	1.00	1.00
##000000	15.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE65A

Deuteranopia (green-blind)

#ECD875

Tritanopia (blue-blind)

#0BF6DC

Achromatopsia (no color)

#DDDDDD

Design tokens & code

CSS

--color: #51fc69;
/* rgb */ color: rgb(81, 252, 105);
/* oklch */ color: oklch(87.4% 0.236 145.4);

Tailwind

colors: {
  custom: {
    50: '#96ff98',
    500: '#51fc69',
    950: '#000000',
  },
}

SCSS

$custom: #51fc69;
$custom-light: #96ff98;
$custom-dark: #000000;

JSON

{
  "hex": "#51fc69",
  "rgb": {
    "r": 81,
    "g": 252,
    "b": 105
  },
  "hsl": {
    "h": 128.421,
    "s": 96.61,
    "l": 65.294
  },
  "oklch": {
    "l": 0.87393,
    "c": 0.23602,
    "h": 145.4
  },
  "luminance": 0.7239
}

Semantic roles & 50–950 ramp

primary

#51FC69

secondary

#CA27B3

accent

#00C5E6

background

#FCFFFC

surface

#F6FFF5

border

#D0D7CF

text

#0F180E

muted

#80867F

Preview Lab

Preview with #51FC69

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

Preview Lab → · Contrast checker → · Palette generator →