#51DB5B#51DB5B

#51DB5B is a light, highly saturated green. Relative luminance 0.532; OKLCH L 78.9% C 0.208 H 144.4°. Best body text is #000000 at 11.63:1 contrast (WCAG AA passes).

Color values

HEX	#51DB5B
RGB	rgb(81, 219, 91)
HSL	hsl(124, 66%, 59%)
HSV	hsv(124, 63%, 86%)
CMYK	cmyk(63%, 0%, 58.4%, 14.1%)
CIE-LAB	lab(77.97, -62.32, 51.16)
CIE-LCH	lch(77.97, 80.63, 140.62°)
OKLab	oklab(78.93% -0.1688 0.1207)
OKLCH	oklch(78.93% 0.208 144.4)
XYZ	xyz(30.6113, 53.1646, 18.5441)
Luminance	0.5317 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51DB5B #DB51D1

analogous

#8CDB51 #51DB5B #51DBA0

triadic

#51DB5B #5B51DB #DB5B51

tetradic

#51DB5B #518CDB #DB51D1 #DBA051

square

#51DB5B #518CDB #DB51D1 #DBA051

split-complementary

#51DB5B #A051DB #DB518C

monochromatic

#1E9327 #29C634 #51DB5B #84E58B #B6F0BB

Accessibility & contrast

On white

1.81

#51DB5B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.63

#51DB5B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51DB5B

11.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51DB5B	#FFFFFF	#000000	##000000
##51DB5B	1.00	1.81	11.63	11.63
#FFFFFF	1.81	1.00	21.00	21.00
#000000	11.63	21.00	1.00	1.00
##000000	11.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DFC84E

Deuteranopia (green-blind)

#CEBC65

Tritanopia (blue-blind)

#31D5BF

Achromatopsia (no color)

#C1C1C1

Design tokens & code

CSS

--color: #51db5b;
/* rgb */ color: rgb(81, 219, 91);
/* oklch */ color: oklch(78.9% 0.208 144.4);

Tailwind

colors: {
  custom: {
    50: '#91e78d',
    500: '#51db5b',
    950: '#000000',
  },
}

SCSS

$custom: #51db5b;
$custom-light: #91e78d;
$custom-dark: #000000;

JSON

{
  "hex": "#51db5b",
  "rgb": {
    "r": 81,
    "g": 219,
    "b": 91
  },
  "hsl": {
    "h": 124.348,
    "s": 65.714,
    "l": 58.824
  },
  "oklch": {
    "l": 0.78929,
    "c": 0.20754,
    "h": 144.4
  },
  "luminance": 0.53168
}

Semantic roles & 50–950 ramp

primary

#51DB5B

secondary

#983891

accent

#3FDCE9

background

#FCFEFC

surface

#F5FDF4

border

#CFD5CE

text

#0E160C

muted

#7F847F

Preview Lab

Preview with #51DB5B

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

Preview Lab → · Contrast checker → · Palette generator →