#51E57D#51E57D

#51E57D is a light, vivid green. Relative luminance 0.593; OKLCH L 81.9% C 0.191 H 149.7°. Best body text is #000000 at 12.85:1 contrast (WCAG AA passes).

Color values

HEX	#51E57D
RGB	rgb(81, 229, 125)
HSL	hsl(138, 74%, 61%)
HSV	hsv(138, 65%, 90%)
CMYK	cmyk(64.6%, 0%, 45.4%, 10.2%)
CIE-LAB	lab(81.44, -61.22, 39.33)
CIE-LCH	lch(81.44, 72.77, 147.28°)
OKLab	oklab(81.92% -0.1651 0.0964)
OKLCH	oklch(81.92% 0.191 149.7)
XYZ	xyz(35.1116, 59.2650, 28.9869)
Luminance	0.5927 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51E57D #E551B9

analogous

#6FE551 #51E57D #51E5C7

triadic

#51E57D #7D51E5 #E57D51

tetradic

#51E57D #516FE5 #E551B9 #E5C751

square

#51E57D #516FE5 #E551B9 #E5C751

split-complementary

#51E57D #C751E5 #E5516F

monochromatic

#18A342 #20D857 #51E57D #86EDA5 #BBF5CD

Accessibility & contrast

On white

1.63

#51E57D on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.85

#51E57D on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E57D

12.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51E57D	#FFFFFF	#000000	##000000
##51E57D	1.00	1.63	12.85	12.85
#FFFFFF	1.63	1.00	21.00	21.00
#000000	12.85	21.00	1.00	1.00
##000000	12.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E7D275

Deuteranopia (green-blind)

#D4C584

Tritanopia (blue-blind)

#13E1CC

Achromatopsia (no color)

#CACACA

Design tokens & code

CSS

--color: #51e57d;
/* rgb */ color: rgb(81, 229, 125);
/* oklch */ color: oklch(81.9% 0.191 149.7);

Tailwind

colors: {
  custom: {
    50: '#91eea4',
    500: '#51e57d',
    950: '#000000',
  },
}

SCSS

$custom: #51e57d;
$custom-light: #91eea4;
$custom-dark: #000000;

JSON

{
  "hex": "#51e57d",
  "rgb": {
    "r": 81,
    "g": 229,
    "b": 125
  },
  "hsl": {
    "h": 137.838,
    "s": 74,
    "l": 60.784
  },
  "oklch": {
    "l": 0.81922,
    "c": 0.19121,
    "h": 149.7
  },
  "luminance": 0.59269
}

Semantic roles & 50–950 ramp

primary

#51E57D

secondary

#A63584

accent

#0F9BD6

background

#FCFFFC

surface

#F5FEF6

border

#CFD6D0

text

#0E160F

muted

#7F8580

Preview Lab

Preview with #51E57D

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

Preview Lab → · Contrast checker → · Palette generator →