#51B970#51B970

#51B970 is a light, vivid green. Relative luminance 0.376; OKLCH L 70.6% C 0.144 H 150.8°. Best body text is #000000 at 8.52:1 contrast (WCAG AA passes).

Color values

HEX	#51B970
RGB	rgb(81, 185, 112)
HSL	hsl(138, 43%, 52%)
HSV	hsv(138, 56%, 73%)
CMYK	cmyk(56.2%, 0%, 39.5%, 27.5%)
CIE-LAB	lab(67.74, -46.38, 28.20)
CIE-LCH	lch(67.74, 54.28, 148.70°)
OKLab	oklab(70.59% -0.1257 0.0701)
OKLCH	oklch(70.59% 0.144 150.8)
XYZ	xyz(23.6652, 37.6150, 21.3394)
Luminance	0.3762 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51B970 #B9519A

analogous

#66B951 #51B970 #51B9A4

triadic

#51B970 #7051B9 #B97051

tetradic

#51B970 #5166B9 #B9519A #B9A451

square

#51B970 #5166B9 #B9519A #B9A451

split-complementary

#51B970 #A451B9 #B95166

monochromatic

#29663B #3B9255 #51B970 #7DCB94 #A8DCB8

Accessibility & contrast

On white

2.46

#51B970 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.52

#51B970 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51B970

8.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51B970	#FFFFFF	#000000	##000000
##51B970	1.00	2.46	8.52	8.52
#FFFFFF	2.46	1.00	21.00	21.00
#000000	8.52	21.00	1.00	1.00
##000000	8.52	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BAAB6B

Deuteranopia (green-blind)

#ACA175

Tritanopia (blue-blind)

#36B6A7

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #51b970;
/* rgb */ color: rgb(81, 185, 112);
/* oklch */ color: oklch(70.6% 0.144 150.8);

Tailwind

colors: {
  custom: {
    50: '#8acf9a',
    500: '#51b970',
    950: '#000000',
  },
}

SCSS

$custom: #51b970;
$custom-light: #8acf9a;
$custom-dark: #000000;

JSON

{
  "hex": "#51b970",
  "rgb": {
    "r": 81,
    "g": 185,
    "b": 112
  },
  "hsl": {
    "h": 137.885,
    "s": 42.623,
    "l": 52.157
  },
  "oklch": {
    "l": 0.70592,
    "c": 0.1439,
    "h": 150.8
  },
  "luminance": 0.37617
}

Semantic roles & 50–950 ramp

primary

#51B970

secondary

#CA9CBC

accent

#55ADD2

background

#F8FCF9

surface

#F0F9F2

border

#CBD2CC

text

#0D140E

muted

#7D827E

Preview Lab

Preview with #51B970

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

Preview Lab → · Contrast checker → · Palette generator →