#51D970#51D970

#51D970 is a light, vivid green. Relative luminance 0.525; OKLCH L 78.7% C 0.187 H 148.0°. Best body text is #000000 at 11.51:1 contrast (WCAG AA passes).

Color values

HEX	#51D970
RGB	rgb(81, 217, 112)
HSL	hsl(134, 64%, 58%)
HSV	hsv(134, 63%, 85%)
CMYK	cmyk(62.7%, 0%, 48.4%, 14.9%)
CIE-LAB	lab(77.60, -58.82, 40.86)
CIE-LCH	lch(77.60, 71.62, 145.21°)
OKLab	oklab(78.71% -0.1588 0.0993)
OKLCH	oklch(78.71% 0.187 148)
XYZ	xyz(31.1286, 52.5418, 23.8272)
Luminance	0.5254 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D970 #D951BA

analogous

#76D951 #51D970 #51D9B4

triadic

#51D970 #7051D9 #D97051

tetradic

#51D970 #5176D9 #D951BA #D9B451

square

#51D970 #5176D9 #D951BA #D9B451

split-complementary

#51D970 #B451D9 #D95176

monochromatic

#1F9039 #2AC24D #51D970 #83E499 #B5EFC3

Accessibility & contrast

On white

1.82

#51D970 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.51

#51D970 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D970

11.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D970	#FFFFFF	#000000	##000000
##51D970	1.00	1.82	11.51	11.51
#FFFFFF	1.82	1.00	21.00	21.00
#000000	11.51	21.00	1.00	1.00
##000000	11.51	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DBC767

Deuteranopia (green-blind)

#CABB77

Tritanopia (blue-blind)

#28D5C0

Achromatopsia (no color)

#C0C0C0

Design tokens & code

CSS

--color: #51d970;
/* rgb */ color: rgb(81, 217, 112);
/* oklch */ color: oklch(78.7% 0.187 148.0);

Tailwind

colors: {
  custom: {
    50: '#90e69b',
    500: '#51d970',
    950: '#000000',
  },
}

SCSS

$custom: #51d970;
$custom-light: #90e69b;
$custom-dark: #000000;

JSON

{
  "hex": "#51d970",
  "rgb": {
    "r": 81,
    "g": 217,
    "b": 112
  },
  "hsl": {
    "h": 133.676,
    "s": 64.151,
    "l": 58.431
  },
  "oklch": {
    "l": 0.78705,
    "c": 0.18729,
    "h": 148
  },
  "luminance": 0.52545
}

Semantic roles & 50–950 ramp

primary

#51D970

secondary

#953980

accent

#41C1E7

background

#FCFEFC

surface

#F5FCF5

border

#CFD5CF

text

#0E160E

muted

#7F847F

Preview Lab

Preview with #51D970

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

Preview Lab → · Contrast checker → · Palette generator →