#51E573#51E573

#51E573 is a light, vivid green. Relative luminance 0.590; OKLCH L 81.8% C 0.200 H 147.8°. Best body text is #000000 at 12.81:1 contrast (WCAG AA passes).

Color values

HEX	#51E573
RGB	rgb(81, 229, 115)
HSL	hsl(134, 74%, 61%)
HSV	hsv(134, 65%, 90%)
CMYK	cmyk(64.6%, 0%, 49.8%, 10.2%)
CIE-LAB	lab(81.30, -62.73, 44.02)
CIE-LCH	lch(81.30, 76.63, 144.94°)
OKLab	oklab(81.77% -0.1692 0.1066)
OKLCH	oklch(81.77% 0.2 147.8)
XYZ	xyz(34.5047, 59.0222, 25.7903)
Luminance	0.5903 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51E573 #E551C3

analogous

#79E551 #51E573 #51E5BD

triadic

#51E573 #7351E5 #E57351

tetradic

#51E573 #5179E5 #E551C3 #E5BD51

square

#51E573 #5179E5 #E551C3 #E5BD51

split-complementary

#51E573 #BD51E5 #E55179

monochromatic

#18A338 #20D84B #51E573 #86ED9E #BBF5C9

Accessibility & contrast

On white

1.64

#51E573 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.81

#51E573 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E573

12.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51E573	#FFFFFF	#000000	##000000
##51E573	1.00	1.64	12.81	12.81
#FFFFFF	1.64	1.00	21.00	21.00
#000000	12.81	21.00	1.00	1.00
##000000	12.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E7D269

Deuteranopia (green-blind)

#D5C57B

Tritanopia (blue-blind)

#1DE0CB

Achromatopsia (no color)

#CACACA

Design tokens & code

CSS

--color: #51e573;
/* rgb */ color: rgb(81, 229, 115);
/* oklch */ color: oklch(81.8% 0.200 147.8);

Tailwind

colors: {
  custom: {
    50: '#92ee9d',
    500: '#51e573',
    950: '#000000',
  },
}

SCSS

$custom: #51e573;
$custom-light: #92ee9d;
$custom-dark: #000000;

JSON

{
  "hex": "#51e573",
  "rgb": {
    "r": 81,
    "g": 229,
    "b": 115
  },
  "hsl": {
    "h": 133.784,
    "s": 74,
    "l": 60.784
  },
  "oklch": {
    "l": 0.81769,
    "c": 0.19999,
    "h": 147.8
  },
  "luminance": 0.59026
}

Semantic roles & 50–950 ramp

primary

#51E573

secondary

#A6358C

accent

#0FA8D6

background

#FCFFFC

surface

#F5FEF5

border

#CFD6CF

text

#0E160E

muted

#7F857F

Preview Lab

Preview with #51E573

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

Preview Lab → · Contrast checker → · Palette generator →