#51D77B#51D77B

#51D77B is a light, vivid green. Relative luminance 0.518; OKLCH L 78.4% C 0.175 H 150.6°. Best body text is #000000 at 11.36:1 contrast (WCAG AA passes).

Color values

HEX	#51D77B
RGB	rgb(81, 215, 123)
HSL	hsl(139, 63%, 58%)
HSV	hsv(139, 62%, 84%)
CMYK	cmyk(62.3%, 0%, 42.8%, 15.7%)
CIE-LAB	lab(77.15, -56.34, 34.82)
CIE-LCH	lch(77.15, 66.23, 148.28°)
OKLab	oklab(78.38% -0.1522 0.0859)
OKLCH	oklch(78.38% 0.175 150.6)
XYZ	xyz(31.2665, 51.7771, 27.0813)
Luminance	0.5178 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D77B #D751AD

analogous

#6AD751 #51D77B #51D7BE

triadic

#51D77B #7B51D7 #D77B51

tetradic

#51D77B #516AD7 #D751AD #D7BE51

square

#51D77B #516AD7 #D751AD #D7BE51

split-complementary

#51D77B #BE51D7 #D7516A

monochromatic

#208D43 #2CBF5A #51D77B #83E2A1 #B5EEC6

Accessibility & contrast

On white

1.85

#51D77B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.36

#51D77B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D77B

11.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D77B	#FFFFFF	#000000	##000000
##51D77B	1.00	1.85	11.36	11.36
#FFFFFF	1.85	1.00	21.00	21.00
#000000	11.36	21.00	1.00	1.00
##000000	11.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D8C674

Deuteranopia (green-blind)

#C7BA81

Tritanopia (blue-blind)

#22D4C1

Achromatopsia (no color)

#BEBEBE

Design tokens & code

CSS

--color: #51d77b;
/* rgb */ color: rgb(81, 215, 123);
/* oklch */ color: oklch(78.4% 0.175 150.6);

Tailwind

colors: {
  custom: {
    50: '#8fe4a2',
    500: '#51d77b',
    950: '#000000',
  },
}

SCSS

$custom: #51d77b;
$custom-light: #8fe4a2;
$custom-dark: #000000;

JSON

{
  "hex": "#51d77b",
  "rgb": {
    "r": 81,
    "g": 215,
    "b": 123
  },
  "hsl": {
    "h": 138.806,
    "s": 62.617,
    "l": 58.039
  },
  "oklch": {
    "l": 0.7838,
    "c": 0.17474,
    "h": 150.6
  },
  "luminance": 0.5178
}

Semantic roles & 50–950 ramp

primary

#51D77B

secondary

#933977

accent

#42B2E6

background

#FCFEFC

surface

#F5FCF5

border

#CFD5CF

text

#0E160F

muted

#7F8480

Preview Lab

Preview with #51D77B

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

Preview Lab → · Contrast checker → · Palette generator →