#51B975#51B975

#51B975 is a light, vivid green. Relative luminance 0.377; OKLCH L 70.7% C 0.139 H 152.5°. Best body text is #000000 at 8.55:1 contrast (WCAG AA passes).

Color values

HEX	#51B975
RGB	rgb(81, 185, 117)
HSL	hsl(141, 43%, 52%)
HSV	hsv(141, 56%, 73%)
CMYK	cmyk(56.2%, 0%, 36.8%, 27.5%)
CIE-LAB	lab(67.82, -45.48, 25.67)
CIE-LCH	lch(67.82, 52.23, 150.56°)
OKLab	oklab(70.69% -0.1234 0.0642)
OKLCH	oklch(70.69% 0.139 152.5)
XYZ	xyz(23.9514, 37.7294, 22.8465)
Luminance	0.3773 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51B975 #B95195

analogous

#61B951 #51B975 #51B9A9

triadic

#51B975 #7551B9 #B97551

tetradic

#51B975 #5161B9 #B95195 #B9A951

square

#51B975 #5161B9 #B95195 #B9A951

split-complementary

#51B975 #A951B9 #B95161

monochromatic

#29663E #3B9259 #51B975 #7DCB98 #A8DCBA

Accessibility & contrast

On white

2.46

#51B975 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.55

#51B975 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51B975

8.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51B975	#FFFFFF	#000000	##000000
##51B975	1.00	2.46	8.55	8.55
#FFFFFF	2.46	1.00	21.00	21.00
#000000	8.55	21.00	1.00	1.00
##000000	8.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B9AB70

Deuteranopia (green-blind)

#ABA179

Tritanopia (blue-blind)

#34B7A8

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #51b975;
/* rgb */ color: rgb(81, 185, 117);
/* oklch */ color: oklch(70.7% 0.139 152.5);

Tailwind

colors: {
  custom: {
    50: '#8acf9d',
    500: '#51b975',
    950: '#000000',
  },
}

SCSS

$custom: #51b975;
$custom-light: #8acf9d;
$custom-dark: #000000;

JSON

{
  "hex": "#51b975",
  "rgb": {
    "r": 81,
    "g": 185,
    "b": 117
  },
  "hsl": {
    "h": 140.769,
    "s": 42.623,
    "l": 52.157
  },
  "oklch": {
    "l": 0.7069,
    "c": 0.1391,
    "h": 152.5
  },
  "luminance": 0.37732
}

Semantic roles & 50–950 ramp

primary

#51B975

secondary

#CA9CBA

accent

#55A7D2

background

#F8FCF9

surface

#F0F9F2

border

#CBD2CC

text

#0C140E

muted

#7D827E

Preview Lab

Preview with #51B975

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

Preview Lab → · Contrast checker → · Palette generator →