#51BF4E#51BF4E

#51BF4E is a light, vivid green. Relative luminance 0.396; OKLCH L 71.6% C 0.183 H 142.9°. Best body text is #000000 at 8.91:1 contrast (WCAG AA passes).

Color values

HEX	#51BF4E
RGB	rgb(81, 191, 78)
HSL	hsl(118, 47%, 53%)
HSV	hsv(118, 59%, 75%)
CMYK	cmyk(57.6%, 0%, 59.2%, 25.1%)
CIE-LAB	lab(69.15, -53.68, 46.82)
CIE-LCH	lch(69.15, 71.23, 138.90°)
OKLab	oklab(71.61% -0.146 0.1103)
OKLCH	oklch(71.61% 0.183 142.9)
XYZ	xyz(23.3980, 39.5589, 13.6089)
Luminance	0.3956 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51BF4E #BC4EBF

analogous

#89BF4E #51BF4E #4EBF83

triadic

#51BF4E #4E51BF #BF4E51

tetradic

#51BF4E #4E89BF #BC4EBF #BF834E

square

#51BF4E #4E89BF #BC4EBF #BF834E

split-complementary

#51BF4E #834EBF #BF4E89

monochromatic

#296C27 #3A9937 #51BF4E #7DCF7B #A9E0A8

Accessibility & contrast

On white

2.36

#51BF4E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.91

#51BF4E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BF4E

8.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51BF4E	#FFFFFF	#000000	##000000
##51BF4E	1.00	2.36	8.91	8.91
#FFFFFF	2.36	1.00	21.00	21.00
#000000	8.91	21.00	1.00	1.00
##000000	8.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C3AF42

Deuteranopia (green-blind)

#B5A557

Tritanopia (blue-blind)

#3FBAA6

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #51bf4e;
/* rgb */ color: rgb(81, 191, 78);
/* oklch */ color: oklch(71.6% 0.183 142.9);

Tailwind

colors: {
  custom: {
    50: '#8cd383',
    500: '#51bf4e',
    950: '#000000',
  },
}

SCSS

$custom: #51bf4e;
$custom-light: #8cd383;
$custom-dark: #000000;

JSON

{
  "hex": "#51bf4e",
  "rgb": {
    "r": 81,
    "g": 191,
    "b": 78
  },
  "hsl": {
    "h": 118.407,
    "s": 46.888,
    "l": 52.745
  },
  "oklch": {
    "l": 0.71611,
    "c": 0.18296,
    "h": 142.9
  },
  "luminance": 0.39561
}

Semantic roles & 50–950 ramp

primary

#51BF4E

secondary

#CC9CCD

accent

#51D7D3

background

#F9FDF8

surface

#F1FAEF

border

#CBD3CA

text

#0D140B

muted

#7E837C

Preview Lab

Preview with #51BF4E

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

Preview Lab → · Contrast checker → · Palette generator →