#51DA91#51DA91

#51DA91 is a light, vivid green. Relative luminance 0.539; OKLCH L 79.5% C 0.159 H 156.4°. Best body text is #000000 at 11.79:1 contrast (WCAG AA passes).

Color values

HEX	#51DA91
RGB	rgb(81, 218, 145)
HSL	hsl(148, 65%, 59%)
HSV	hsv(148, 63%, 85%)
CMYK	cmyk(62.8%, 0%, 33.5%, 14.5%)
CIE-LAB	lab(78.42, -53.55, 25.24)
CIE-LCH	lch(78.42, 59.20, 154.76°)
OKLab	oklab(79.55% -0.1454 0.0636)
OKLCH	oklch(79.55% 0.159 156.4)
XYZ	xyz(33.5726, 53.9330, 35.4234)
Luminance	0.5394 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51DA91 #DA519A

analogous

#55DA51 #51DA91 #51DAD5

triadic

#51DA91 #9151DA #DA9151

tetradic

#51DA91 #5155DA #DA519A #DAD551

square

#51DA91 #5155DA #DA519A #DAD551

split-complementary

#51DA91 #D551DA #DA5155

monochromatic

#1F9255 #2AC472 #51DA91 #83E5B1 #B6EFD1

Accessibility & contrast

On white

1.78

#51DA91 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.79

#51DA91 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51DA91

11.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51DA91	#FFFFFF	#000000	##000000
##51DA91	1.00	1.78	11.79	11.79
#FFFFFF	1.78	1.00	21.00	21.00
#000000	11.79	21.00	1.00	1.00
##000000	11.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D9CA8C

Deuteranopia (green-blind)

#C7BD96

Tritanopia (blue-blind)

#00D8C7

Achromatopsia (no color)

#C2C2C2

Design tokens & code

CSS

--color: #51da91;
/* rgb */ color: rgb(81, 218, 145);
/* oklch */ color: oklch(79.5% 0.159 156.4);

Tailwind

colors: {
  custom: {
    50: '#8fe6b1',
    500: '#51da91',
    950: '#000000',
  },
}

SCSS

$custom: #51da91;
$custom-light: #8fe6b1;
$custom-dark: #000000;

JSON

{
  "hex": "#51da91",
  "rgb": {
    "r": 81,
    "g": 218,
    "b": 145
  },
  "hsl": {
    "h": 148.029,
    "s": 64.929,
    "l": 58.627
  },
  "oklch": {
    "l": 0.79547,
    "c": 0.15874,
    "h": 156.4
  },
  "luminance": 0.53936
}

Semantic roles & 50–950 ramp

primary

#51DA91

secondary

#97396B

accent

#4099E8

background

#FCFEFD

surface

#F5FCF7

border

#CFD5D0

text

#0E1611

muted

#7F8481

Preview Lab

Preview with #51DA91

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

Preview Lab → · Contrast checker → · Palette generator →