#51EC4B#51EC4B

#51EC4B is a very light, highly saturated green. Relative luminance 0.622; OKLCH L 83.1% C 0.239 H 142.6°. Best body text is #000000 at 13.45:1 contrast (WCAG AA passes).

Color values

HEX	#51EC4B
RGB	rgb(81, 236, 75)
HSL	hsl(118, 81%, 61%)
HSV	hsv(118, 68%, 93%)
CMYK	cmyk(65.7%, 0%, 68.2%, 7.5%)
CIE-LAB	lab(83.04, -69.70, 63.40)
CIE-LCH	lch(83.04, 94.23, 137.71°)
OKLab	oklab(83.08% -0.1896 0.1451)
OKLCH	oklch(83.08% 0.239 142.6)
XYZ	xyz(34.6568, 62.2447, 16.8432)
Luminance	0.6225 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51EC4B #E64BEC

analogous

#A1EC4B #51EC4B #4BEC95

triadic

#51EC4B #4B51EC #EC4B51

tetradic

#51EC4B #4BA1EC #E64BEC #EC954B

square

#51EC4B #4BA1EC #E64BEC #EC954B

split-complementary

#51EC4B #954BEC #EC4BA1

monochromatic

#18AB12 #1FE218 #51EC4B #87F282 #BCF8BA

Accessibility & contrast

On white

1.56

#51EC4B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.45

#51EC4B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51EC4B

13.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51EC4B	#FFFFFF	#000000	##000000
##51EC4B	1.00	1.56	13.45	13.45
#FFFFFF	1.56	1.00	21.00	21.00
#000000	13.45	21.00	1.00	1.00
##000000	13.45	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F1D633

Deuteranopia (green-blind)

#DFCA5A

Tritanopia (blue-blind)

#2DE5CC

Achromatopsia (no color)

#CFCFCF

Design tokens & code

CSS

--color: #51ec4b;
/* rgb */ color: rgb(81, 236, 75);
/* oklch */ color: oklch(83.1% 0.239 142.6);

Tailwind

colors: {
  custom: {
    50: '#94f385',
    500: '#51ec4b',
    950: '#000000',
  },
}

SCSS

$custom: #51ec4b;
$custom-light: #94f385;
$custom-dark: #000000;

JSON

{
  "hex": "#51ec4b",
  "rgb": {
    "r": 81,
    "g": 236,
    "b": 75
  },
  "hsl": {
    "h": 117.764,
    "s": 80.905,
    "l": 60.98
  },
  "oklch": {
    "l": 0.83079,
    "c": 0.23875,
    "h": 142.6
  },
  "luminance": 0.62248
}

Semantic roles & 50–950 ramp

primary

#51EC4B

secondary

#A730AC

accent

#08DDD5

background

#FCFFFC

surface

#F5FEF3

border

#CFD6CD

text

#0F170C

muted

#80857F

Preview Lab

Preview with #51EC4B

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

Preview Lab → · Contrast checker → · Palette generator →