#51BF4B#51BF4B

#51BF4B is a light, vivid green. Relative luminance 0.395; OKLCH L 71.6% C 0.185 H 142.5°. Best body text is #000000 at 8.90:1 contrast (WCAG AA passes).

Color values

HEX	#51BF4B
RGB	rgb(81, 191, 75)
HSL	hsl(117, 48%, 52%)
HSV	hsv(117, 61%, 75%)
CMYK	cmyk(57.6%, 0%, 60.7%, 25.1%)
CIE-LAB	lab(69.12, -54.02, 48.14)
CIE-LCH	lch(69.12, 72.36, 138.29°)
OKLab	oklab(71.58% -0.1471 0.1128)
OKLCH	oklch(71.58% 0.185 142.5)
XYZ	xyz(23.2929, 39.5169, 13.0553)
Luminance	0.3952 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51BF4B #B94BBF

analogous

#8BBF4B #51BF4B #4BBF7F

triadic

#51BF4B #4B51BF #BF4B51

tetradic

#51BF4B #4B8BBF #B94BBF #BF7F4B

square

#51BF4B #4B8BBF #B94BBF #BF7F4B

split-complementary

#51BF4B #7F4BBF #BF4B8B

monochromatic

#296A26 #3B9736 #51BF4B #7DCF78 #A8DFA5

Accessibility & contrast

On white

2.36

#51BF4B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.90

#51BF4B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BF4B

8.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51BF4B	#FFFFFF	#000000	##000000
##51BF4B	1.00	2.36	8.90	8.90
#FFFFFF	2.36	1.00	21.00	21.00
#000000	8.90	21.00	1.00	1.00
##000000	8.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C3AF3E

Deuteranopia (green-blind)

#B5A554

Tritanopia (blue-blind)

#40BAA6

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #51bf4b;
/* rgb */ color: rgb(81, 191, 75);
/* oklch */ color: oklch(71.6% 0.185 142.5);

Tailwind

colors: {
  custom: {
    50: '#8dd381',
    500: '#51bf4b',
    950: '#000000',
  },
}

SCSS

$custom: #51bf4b;
$custom-light: #8dd381;
$custom-dark: #000000;

JSON

{
  "hex": "#51bf4b",
  "rgb": {
    "r": 81,
    "g": 191,
    "b": 75
  },
  "hsl": {
    "h": 116.897,
    "s": 47.541,
    "l": 52.157
  },
  "oklch": {
    "l": 0.71576,
    "c": 0.18537,
    "h": 142.5
  },
  "luminance": 0.39519
}

Semantic roles & 50–950 ramp

primary

#51BF4B

secondary

#CA9ACC

accent

#51D7D0

background

#F9FDF8

surface

#F1FAEF

border

#CBD3CA

text

#0D140B

muted

#7E837C

Preview Lab

Preview with #51BF4B

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

Preview Lab → · Contrast checker → · Palette generator →