#51D57B#51D57B

#51D57B is a light, vivid green. Relative luminance 0.508; OKLCH L 77.9% C 0.172 H 150.8°. Best body text is #000000 at 11.15:1 contrast (WCAG AA passes).

Color values

HEX	#51D57B
RGB	rgb(81, 213, 123)
HSL	hsl(139, 61%, 58%)
HSV	hsv(139, 62%, 84%)
CMYK	cmyk(62%, 0%, 42.3%, 16.5%)
CIE-LAB	lab(76.54, -55.58, 34.03)
CIE-LCH	lch(76.54, 65.17, 148.52°)
OKLab	oklab(77.88% -0.1501 0.0841)
OKLCH	oklch(77.88% 0.172 150.8)
XYZ	xyz(30.7604, 50.7648, 26.9126)
Luminance	0.5077 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D57B #D551AB

analogous

#69D551 #51D57B #51D5BD

triadic

#51D57B #7B51D5 #D57B51

tetradic

#51D57B #5169D5 #D551AB #D5BD51

square

#51D57B #5169D5 #D551AB #D5BD51

split-complementary

#51D57B #BD51D5 #D55169

monochromatic

#218A43 #2DBC5B #51D57B #82E1A0 #B4EDC6

Accessibility & contrast

On white

1.88

#51D57B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.15

#51D57B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D57B

11.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D57B	#FFFFFF	#000000	##000000
##51D57B	1.00	1.88	11.15	11.15
#FFFFFF	1.88	1.00	21.00	21.00
#000000	11.15	21.00	1.00	1.00
##000000	11.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D6C474

Deuteranopia (green-blind)

#C5B881

Tritanopia (blue-blind)

#23D2BF

Achromatopsia (no color)

#BDBDBD

Design tokens & code

CSS

--color: #51d57b;
/* rgb */ color: rgb(81, 213, 123);
/* oklch */ color: oklch(77.9% 0.172 150.8);

Tailwind

colors: {
  custom: {
    50: '#8fe3a2',
    500: '#51d57b',
    950: '#000000',
  },
}

SCSS

$custom: #51d57b;
$custom-light: #8fe3a2;
$custom-dark: #000000;

JSON

{
  "hex": "#51d57b",
  "rgb": {
    "r": 81,
    "g": 213,
    "b": 123
  },
  "hsl": {
    "h": 139.091,
    "s": 61.111,
    "l": 57.647
  },
  "oklch": {
    "l": 0.77877,
    "c": 0.17207,
    "h": 150.8
  },
  "luminance": 0.50768
}

Semantic roles & 50–950 ramp

primary

#51D57B

secondary

#903A75

accent

#44B1E4

background

#FCFEFC

surface

#F5FCF5

border

#CFD5CF

text

#0E150F

muted

#7F8480

Preview Lab

Preview with #51D57B

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

Preview Lab → · Contrast checker → · Palette generator →