#51FF4D#51FF4D

#51FF4D is a very light, highly saturated green. Relative luminance 0.738; OKLCH L 87.9% C 0.258 H 142.7°. Best body text is #000000 at 15.76:1 contrast (WCAG AA passes).

Color values

HEX	#51FF4D
RGB	rgb(81, 255, 77)
HSL	hsl(119, 100%, 65%)
HSV	hsv(119, 70%, 100%)
CMYK	cmyk(68.2%, 0%, 69.8%, 0%)
CIE-LAB	lab(88.83, -75.63, 68.72)
CIE-LCH	lch(88.83, 102.19, 137.74°)
OKLab	oklab(87.88% -0.2055 0.1565)
OKLCH	oklch(87.88% 0.258 142.7)
XYZ	xyz(40.4905, 73.8008, 19.1308)
Luminance	0.7380 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51FF4D #FB4DFF

analogous

#AAFF4D #51FF4D #4DFFA2

triadic

#51FF4D #4D51FF #FF4D51

tetradic

#51FF4D #4DAAFF #FB4DFF #FFA24D

square

#51FF4D #4DAAFF #FB4DFF #FFA24D

split-complementary

#51FF4D #A24DFF #FF4DAA

monochromatic

#05D200 #15FF10 #51FF4D #8DFF8A #C9FFC7

Accessibility & contrast

On white

1.33

#51FF4D on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.76

#51FF4D on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51FF4D

15.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51FF4D	#FFFFFF	#000000	##000000
##51FF4D	1.00	1.33	15.76	15.76
#FFFFFF	1.33	1.00	21.00	21.00
#000000	15.76	21.00	1.00	1.00
##000000	15.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE830

Deuteranopia (green-blind)

#F0DA5F

Tritanopia (blue-blind)

#1EF8DC

Achromatopsia (no color)

#DFDFDF

Design tokens & code

CSS

--color: #51ff4d;
/* rgb */ color: rgb(81, 255, 77);
/* oklch */ color: oklch(87.9% 0.258 142.7);

Tailwind

colors: {
  custom: {
    50: '#98ff88',
    500: '#51ff4d',
    950: '#000000',
  },
}

SCSS

$custom: #51ff4d;
$custom-light: #98ff88;
$custom-dark: #000000;

JSON

{
  "hex": "#51ff4d",
  "rgb": {
    "r": 81,
    "g": 255,
    "b": 77
  },
  "hsl": {
    "h": 118.652,
    "s": 100,
    "l": 65.098
  },
  "oklch": {
    "l": 0.87878,
    "c": 0.25833,
    "h": 142.7
  },
  "luminance": 0.73805
}

Semantic roles & 50–950 ramp

primary

#51FF4D

secondary

#C824CC

accent

#00E6E0

background

#FCFFFC

surface

#F6FFF4

border

#D0D7CE

text

#10180C

muted

#80867F

Preview Lab

Preview with #51FF4D

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

Preview Lab → · Contrast checker → · Palette generator →