#51EE78#51EE78

#51EE78 is a very light, highly saturated green. Relative luminance 0.643; OKLCH L 84.1% C 0.207 H 148.1°. Best body text is #000000 at 13.85:1 contrast (WCAG AA passes).

Color values

HEX	#51EE78
RGB	rgb(81, 238, 120)
HSL	hsl(135, 82%, 63%)
HSV	hsv(135, 66%, 93%)
CMYK	cmyk(66%, 0%, 49.6%, 6.7%)
CIE-LAB	lab(84.10, -65.20, 45.10)
CIE-LCH	lch(84.10, 79.28, 145.33°)
OKLab	oklab(84.09% -0.1758 0.1092)
OKLCH	oklch(84.09% 0.207 148.1)
XYZ	xyz(37.3553, 64.2505, 28.1986)
Luminance	0.6425 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51EE78 #EE51C7

analogous

#79EE51 #51EE78 #51EEC6

triadic

#51EE78 #7851EE #EE7851

tetradic

#51EE78 #5179EE #EE51C7 #EEC651

square

#51EE78 #5179EE #EE51C7 #EEC651

split-complementary

#51EE78 #C651EE #EE5179

monochromatic

#11B33A #19E94D #51EE78 #89F3A3 #C1F9CF

Accessibility & contrast

On white

1.52

#51EE78 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.85

#51EE78 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51EE78

13.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51EE78	#FFFFFF	#000000	##000000
##51EE78	1.00	1.52	13.85	13.85
#FFFFFF	1.52	1.00	21.00	21.00
#000000	13.85	21.00	1.00	1.00
##000000	13.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F0DA6E

Deuteranopia (green-blind)

#DDCC81

Tritanopia (blue-blind)

#0DE9D3

Achromatopsia (no color)

#D2D2D2

Design tokens & code

CSS

--color: #51ee78;
/* rgb */ color: rgb(81, 238, 120);
/* oklch */ color: oklch(84.1% 0.207 148.1);

Tailwind

colors: {
  custom: {
    50: '#93f5a1',
    500: '#51ee78',
    950: '#000000',
  },
}

SCSS

$custom: #51ee78;
$custom-light: #93f5a1;
$custom-dark: #000000;

JSON

{
  "hex": "#51ee78",
  "rgb": {
    "r": 81,
    "g": 238,
    "b": 120
  },
  "hsl": {
    "h": 134.904,
    "s": 82.199,
    "l": 62.549
  },
  "oklch": {
    "l": 0.84094,
    "c": 0.20697,
    "h": 148.1
  },
  "luminance": 0.64254
}

Semantic roles & 50–950 ramp

primary

#51EE78

secondary

#B33092

accent

#07A9DF

background

#FCFFFC

surface

#F5FFF5

border

#CFD7CF

text

#0E170F

muted

#7F8580

Preview Lab

Preview with #51EE78

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

Preview Lab → · Contrast checker → · Palette generator →