#51D37B#51D37B

#51D37B is a light, vivid green. Relative luminance 0.498; OKLCH L 77.4% C 0.169 H 151.0°. Best body text is #000000 at 10.95:1 contrast (WCAG AA passes).

Color values

HEX	#51D37B
RGB	rgb(81, 211, 123)
HSL	hsl(139, 60%, 57%)
HSV	hsv(139, 62%, 83%)
CMYK	cmyk(61.6%, 0%, 41.7%, 17.3%)
CIE-LAB	lab(75.92, -54.81, 33.24)
CIE-LCH	lch(75.92, 64.10, 148.77°)
OKLab	oklab(77.37% -0.1481 0.0822)
OKLCH	oklch(77.37% 0.169 151)
XYZ	xyz(30.2604, 49.7649, 26.7459)
Luminance	0.4977 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D37B #D351A9

analogous

#68D351 #51D37B #51D3BC

triadic

#51D37B #7B51D3 #D37B51

tetradic

#51D37B #5168D3 #D351A9 #D3BC51

square

#51D37B #5168D3 #D351A9 #D3BC51

split-complementary

#51D37B #BC51D3 #D35168

monochromatic

#228743 #2FB85B #51D37B #82DFA0 #B3ECC5

Accessibility & contrast

On white

1.92

#51D37B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.95

#51D37B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D37B

10.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D37B	#FFFFFF	#000000	##000000
##51D37B	1.00	1.92	10.95	10.95
#FFFFFF	1.92	1.00	21.00	21.00
#000000	10.95	21.00	1.00	1.00
##000000	10.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D4C275

Deuteranopia (green-blind)

#C3B681

Tritanopia (blue-blind)

#24D0BD

Achromatopsia (no color)

#BBBBBB

Design tokens & code

CSS

--color: #51d37b;
/* rgb */ color: rgb(81, 211, 123);
/* oklch */ color: oklch(77.4% 0.169 151.0);

Tailwind

colors: {
  custom: {
    50: '#8ee1a2',
    500: '#51d37b',
    950: '#000000',
  },
}

SCSS

$custom: #51d37b;
$custom-light: #8ee1a2;
$custom-dark: #000000;

JSON

{
  "hex": "#51d37b",
  "rgb": {
    "r": 81,
    "g": 211,
    "b": 123
  },
  "hsl": {
    "h": 139.385,
    "s": 59.633,
    "l": 57.255
  },
  "oklch": {
    "l": 0.77374,
    "c": 0.1694,
    "h": 151
  },
  "luminance": 0.49768
}

Semantic roles & 50–950 ramp

primary

#51D37B

secondary

#DAA6C9

accent

#45B0E3

background

#F9FDFA

surface

#F2FBF3

border

#CCD4CD

text

#0D150F

muted

#7E837F

Preview Lab

Preview with #51D37B

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

Preview Lab → · Contrast checker → · Palette generator →