#51FFA4#51FFA4
#51FFA4 is a very light, vivid green. Relative luminance 0.759; OKLCH L 89.0% C 0.190 H 155.9°. Best body text is #000000 at 16.19:1 contrast (WCAG AA passes).
Color values
| HEX | #51FFA4 |
|---|---|
| RGB | rgb(81, 255, 164) |
| HSL | hsl(149, 100%, 66%) |
| HSV | hsv(149, 68%, 100%) |
| CMYK | cmyk(68.2%, 0%, 35.7%, 0%) |
| CIE-LAB | lab(89.83, -64.04, 30.94) |
| CIE-LCH | lch(89.83, 71.13, 154.21°) |
| OKLab | oklab(89.04% -0.1733 0.0776) |
| OKLCH | oklch(89.04% 0.19 155.9) |
| XYZ | xyz(45.8499, 75.9446, 47.3572) |
| Luminance | 0.7595 (WCAG relative) |
| Temperature | neutral |
| Family | green |
Closest named colors
Sea Green (survey)
#53FCA1
ΔE00 0.65
Light Green Blue
#56FCA2
ΔE00 0.67
Bright Sea Green
#05FFA6
ΔE00 2.13
Mediumspringgreen
#00FA9A
ΔE00 2.28
Light Bluish Green
#76FDA8
ΔE00 2.39
Seafoam Green
#7AF9AB
ΔE00 3.22
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#51FFA4 #FF51AC
analogous
#55FF51 #51FFA4 #51FFFB
triadic
#51FFA4 #A451FF #FFA451
tetradic
#51FFA4 #5155FF #FF51AC #FFFB51
square
#51FFA4 #5155FF #FF51AC #FFFB51
split-complementary
#51FFA4 #FB51FF #FF5155
monochromatic
#00D666 #14FF84 #51FFA4 #8EFFC4 #CBFFE4
Accessibility & contrast
On white
1.30
#51FFA4 on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
16.19
#51FFA4 on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #51FFA4
16.19:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##51FFA4 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##51FFA4 | 1.00 | 1.30 | 16.19 | 16.19 |
| #FFFFFF | 1.30 | 1.00 | 21.00 | 21.00 |
| #000000 | 16.19 | 21.00 | 1.00 | 1.00 |
| ##000000 | 16.19 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#FEEB9E
Deuteranopia (green-blind)
#E8DCAA
Tritanopia (blue-blind)
#00FDE8
Achromatopsia (no color)
#E2E2E2
Design tokens & code
CSS
--color: #51ffa4; /* rgb */ color: rgb(81, 255, 164); /* oklch */ color: oklch(89.0% 0.190 155.9);
Tailwind
colors: {
custom: {
50: '#95ffbf',
500: '#51ffa4',
950: '#000000',
},
}SCSS
$custom: #51ffa4; $custom-light: #95ffbf; $custom-dark: #000000;
JSON
{
"hex": "#51ffa4",
"rgb": {
"r": 81,
"g": 255,
"b": 164
},
"hsl": {
"h": 148.621,
"s": 100,
"l": 65.882
},
"oklch": {
"l": 0.89035,
"c": 0.1899,
"h": 155.9
},
"luminance": 0.7595
}Semantic roles & 50–950 ramp
primary
#51FFA4
secondary
#D0257E
accent
#0078E6
background
#FCFFFD
surface
#F5FFF9
border
#CFD7D2
text
#0F1812
muted
#808682