#51EA99#51EA99

#51EA99 is a very light, vivid green. Relative luminance 0.629; OKLCH L 83.7% C 0.173 H 156.1°. Best body text is #000000 at 13.58:1 contrast (WCAG AA passes).

Color values

HEX	#51EA99
RGB	rgb(81, 234, 153)
HSL	hsl(148, 78%, 62%)
HSV	hsv(148, 65%, 92%)
CMYK	cmyk(65.4%, 0%, 34.6%, 8.2%)
CIE-LAB	lab(83.38, -58.23, 27.83)
CIE-LCH	lch(83.38, 64.54, 154.46°)
OKLab	oklab(83.67% -0.1579 0.07)
OKLCH	oklch(83.67% 0.173 156.1)
XYZ	xyz(38.5624, 62.8907, 40.2377)
Luminance	0.6290 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51EA99 #EA51A2

analogous

#56EA51 #51EA99 #51EAE5

triadic

#51EA99 #9951EA #EA9951

tetradic

#51EA99 #5156EA #EA51A2 #EAE551

square

#51EA99 #5156EA #EA51A2 #EAE551

split-complementary

#51EA99 #E551EA #EA5156

monochromatic

#15AC5C #1BE279 #51EA99 #88F1B9 #BEF7D9

Accessibility & contrast

On white

1.55

#51EA99 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.58

#51EA99 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51EA99

13.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51EA99	#FFFFFF	#000000	##000000
##51EA99	1.00	1.55	13.58	13.58
#FFFFFF	1.55	1.00	21.00	21.00
#000000	13.58	21.00	1.00	1.00
##000000	13.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E9D894

Deuteranopia (green-blind)

#D5CA9E

Tritanopia (blue-blind)

#00E8D5

Achromatopsia (no color)

#D0D0D0

Design tokens & code

CSS

--color: #51ea99;
/* rgb */ color: rgb(81, 234, 153);
/* oklch */ color: oklch(83.7% 0.173 156.1);

Tailwind

colors: {
  custom: {
    50: '#92f2b7',
    500: '#51ea99',
    950: '#000000',
  },
}

SCSS

$custom: #51ea99;
$custom-light: #92f2b7;
$custom-dark: #000000;

JSON

{
  "hex": "#51ea99",
  "rgb": {
    "r": 81,
    "g": 234,
    "b": 153
  },
  "hsl": {
    "h": 148.235,
    "s": 78.462,
    "l": 61.765
  },
  "oklch": {
    "l": 0.83669,
    "c": 0.17268,
    "h": 156.1
  },
  "luminance": 0.62895
}

Semantic roles & 50–950 ramp

primary

#51EA99

secondary

#AD3273

accent

#0B79DB

background

#FCFFFD

surface

#F5FEF8

border

#CFD6D1

text

#0E1711

muted

#7F8581

Preview Lab

Preview with #51EA99

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

Preview Lab → · Contrast checker → · Palette generator →