#51DB7B#51DB7B

#51DB7B is a light, vivid green. Relative luminance 0.538; OKLCH L 79.4% C 0.180 H 150.2°. Best body text is #000000 at 11.77:1 contrast (WCAG AA passes).

Color values

HEX	#51DB7B
RGB	rgb(81, 219, 123)
HSL	hsl(138, 66%, 59%)
HSV	hsv(138, 63%, 86%)
CMYK	cmyk(63%, 0%, 43.8%, 14.1%)
CIE-LAB	lab(78.37, -57.85, 36.40)
CIE-LCH	lch(78.37, 68.35, 147.82°)
OKLab	oklab(79.38% -0.1562 0.0896)
OKLCH	oklch(79.38% 0.18 150.2)
XYZ	xyz(32.2975, 53.8391, 27.4250)
Luminance	0.5384 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51DB7B #DB51B1

analogous

#6CDB51 #51DB7B #51DBC0

triadic

#51DB7B #7B51DB #DB7B51

tetradic

#51DB7B #516CDB #DB51B1 #DBC051

square

#51DB7B #516CDB #DB51B1 #DBC051

split-complementary

#51DB7B #C051DB #DB516C

monochromatic

#1E9342 #29C659 #51DB7B #84E5A1 #B6F0C8

Accessibility & contrast

On white

1.78

#51DB7B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.77

#51DB7B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51DB7B

11.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51DB7B	#FFFFFF	#000000	##000000
##51DB7B	1.00	1.78	11.77	11.77
#FFFFFF	1.78	1.00	21.00	21.00
#000000	11.77	21.00	1.00	1.00
##000000	11.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DCC974

Deuteranopia (green-blind)

#CBBD81

Tritanopia (blue-blind)

#1FD7C4

Achromatopsia (no color)

#C2C2C2

Design tokens & code

CSS

--color: #51db7b;
/* rgb */ color: rgb(81, 219, 123);
/* oklch */ color: oklch(79.4% 0.180 150.2);

Tailwind

colors: {
  custom: {
    50: '#90e7a2',
    500: '#51db7b',
    950: '#000000',
  },
}

SCSS

$custom: #51db7b;
$custom-light: #90e7a2;
$custom-dark: #000000;

JSON

{
  "hex": "#51db7b",
  "rgb": {
    "r": 81,
    "g": 219,
    "b": 123
  },
  "hsl": {
    "h": 138.261,
    "s": 65.714,
    "l": 58.824
  },
  "oklch": {
    "l": 0.79384,
    "c": 0.18001,
    "h": 150.2
  },
  "luminance": 0.53842
}

Semantic roles & 50–950 ramp

primary

#51DB7B

secondary

#98387B

accent

#3FB5E9

background

#FCFEFC

surface

#F5FDF5

border

#CFD5CF

text

#0E160F

muted

#7F8480

Preview Lab

Preview with #51DB7B

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

Preview Lab → · Contrast checker → · Palette generator →