#51DC78#51DC78

#51DC78 is a light, vivid green. Relative luminance 0.543; OKLCH L 79.6% C 0.184 H 149.4°. Best body text is #000000 at 11.86:1 contrast (WCAG AA passes).

Color values

HEX	#51DC78
RGB	rgb(81, 220, 120)
HSL	hsl(137, 67%, 59%)
HSV	hsv(137, 63%, 86%)
CMYK	cmyk(63.2%, 0%, 45.5%, 13.7%)
CIE-LAB	lab(78.63, -58.70, 38.22)
CIE-LCH	lch(78.63, 70.05, 146.93°)
OKLab	oklab(79.59% -0.1584 0.0937)
OKLCH	oklch(79.59% 0.184 149.4)
XYZ	xyz(32.3743, 54.2885, 26.5383)
Luminance	0.5429 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51DC78 #DC51B5

analogous

#70DC51 #51DC78 #51DCBE

triadic

#51DC78 #7851DC #DC7851

tetradic

#51DC78 #5170DC #DC51B5 #DCBE51

square

#51DC78 #5170DC #DC51B5 #DCBE51

split-complementary

#51DC78 #BE51DC #DC5170

monochromatic

#1E953F #28C855 #51DC78 #84E6A0 #B7F0C7

Accessibility & contrast

On white

1.77

#51DC78 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.86

#51DC78 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51DC78

11.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51DC78	#FFFFFF	#000000	##000000
##51DC78	1.00	1.77	11.86	11.86
#FFFFFF	1.77	1.00	21.00	21.00
#000000	11.86	21.00	1.00	1.00
##000000	11.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DECA70

Deuteranopia (green-blind)

#CCBE7F

Tritanopia (blue-blind)

#20D8C4

Achromatopsia (no color)

#C3C3C3

Design tokens & code

CSS

--color: #51dc78;
/* rgb */ color: rgb(81, 220, 120);
/* oklch */ color: oklch(79.6% 0.184 149.4);

Tailwind

colors: {
  custom: {
    50: '#90e8a0',
    500: '#51dc78',
    950: '#000000',
  },
}

SCSS

$custom: #51dc78;
$custom-light: #90e8a0;
$custom-dark: #000000;

JSON

{
  "hex": "#51dc78",
  "rgb": {
    "r": 81,
    "g": 220,
    "b": 120
  },
  "hsl": {
    "h": 136.835,
    "s": 66.507,
    "l": 59.02
  },
  "oklch": {
    "l": 0.79586,
    "c": 0.18403,
    "h": 149.4
  },
  "luminance": 0.54292
}

Semantic roles & 50–950 ramp

primary

#51DC78

secondary

#99387E

accent

#3EB9E9

background

#FCFEFC

surface

#F5FDF5

border

#CFD5CF

text

#0E160F

muted

#7F8480

Preview Lab

Preview with #51DC78

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

Preview Lab → · Contrast checker → · Palette generator →