#51E66B#51E66B

#51E66B is a light, highly saturated green. Relative luminance 0.594; OKLCH L 81.9% C 0.208 H 146.4°. Best body text is #000000 at 12.88:1 contrast (WCAG AA passes).

Color values

HEX	#51E66B
RGB	rgb(81, 230, 107)
HSL	hsl(130, 75%, 61%)
HSV	hsv(130, 65%, 90%)
CMYK	cmyk(64.8%, 0%, 53.5%, 9.8%)
CIE-LAB	lab(81.51, -64.19, 48.05)
CIE-LCH	lch(81.51, 80.18, 143.18°)
OKLab	oklab(81.91% -0.1733 0.1151)
OKLCH	oklch(81.91% 0.208 146.4)
XYZ	xyz(34.3416, 59.4009, 23.5628)
Luminance	0.5940 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51E66B #E651CC

analogous

#81E651 #51E66B #51E6B5

triadic

#51E66B #6B51E6 #E66B51

tetradic

#51E66B #5181E6 #E651CC #E6B551

square

#51E66B #5181E6 #E651CC #E6B551

split-complementary

#51E66B #B551E6 #E65181

monochromatic

#18A530 #1FDA40 #51E66B #87EE99 #BCF5C6

Accessibility & contrast

On white

1.63

#51E66B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.88

#51E66B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E66B

12.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51E66B	#FFFFFF	#000000	##000000
##51E66B	1.00	1.63	12.88	12.88
#FFFFFF	1.63	1.00	21.00	21.00
#000000	12.88	21.00	1.00	1.00
##000000	12.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E9D260

Deuteranopia (green-blind)

#D7C674

Tritanopia (blue-blind)

#22E1CA

Achromatopsia (no color)

#CBCBCB

Design tokens & code

CSS

--color: #51e66b;
/* rgb */ color: rgb(81, 230, 107);
/* oklch */ color: oklch(81.9% 0.208 146.4);

Tailwind

colors: {
  custom: {
    50: '#92ef98',
    500: '#51e66b',
    950: '#000000',
  },
}

SCSS

$custom: #51e66b;
$custom-light: #92ef98;
$custom-dark: #000000;

JSON

{
  "hex": "#51e66b",
  "rgb": {
    "r": 81,
    "g": 230,
    "b": 107
  },
  "hsl": {
    "h": 130.47,
    "s": 74.874,
    "l": 60.98
  },
  "oklch": {
    "l": 0.81909,
    "c": 0.20805,
    "h": 146.4
  },
  "luminance": 0.59404
}

Semantic roles & 50–950 ramp

primary

#51E66B

secondary

#A73493

accent

#0EB4D7

background

#FCFFFC

surface

#F5FEF5

border

#CFD6CF

text

#0E170E

muted

#7F857F

Preview Lab

Preview with #51E66B

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

Preview Lab → · Contrast checker → · Palette generator →