#51C563#51C563

#51C563 is a light, vivid green. Relative luminance 0.426; OKLCH L 73.4% C 0.173 H 146.5°. Best body text is #000000 at 9.52:1 contrast (WCAG AA passes).

Color values

HEX	#51C563
RGB	rgb(81, 197, 99)
HSL	hsl(129, 50%, 55%)
HSV	hsv(129, 59%, 77%)
CMYK	cmyk(58.9%, 0%, 49.7%, 22.7%)
CIE-LAB	lab(71.27, -53.22, 39.35)
CIE-LCH	lch(71.27, 66.18, 143.52°)
OKLab	oklab(73.43% -0.144 0.0953)
OKLCH	oklch(73.43% 0.173 146.5)
XYZ	xyz(25.6101, 42.5803, 18.6712)
Luminance	0.4258 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51C563 #C551B3

analogous

#79C551 #51C563 #51C59D

triadic

#51C563 #6351C5 #C56351

tetradic

#51C563 #5179C5 #C551B3 #C59D51

square

#51C563 #5179C5 #C551B3 #C59D51

split-complementary

#51C563 #9D51C5 #C55179

monochromatic

#277533 #36A347 #51C563 #7FD48C #ADE4B5

Accessibility & contrast

On white

2.21

#51C563 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.52

#51C563 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51C563

9.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51C563	#FFFFFF	#000000	##000000
##51C563	1.00	2.21	9.52	9.52
#FFFFFF	2.21	1.00	21.00	21.00
#000000	9.52	21.00	1.00	1.00
##000000	9.52	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C8B55B

Deuteranopia (green-blind)

#B9AA6A

Tritanopia (blue-blind)

#37C1AE

Achromatopsia (no color)

#AEAEAE

Design tokens & code

CSS

--color: #51c563;
/* rgb */ color: rgb(81, 197, 99);
/* oklch */ color: oklch(73.4% 0.173 146.5);

Tailwind

colors: {
  custom: {
    50: '#8dd791',
    500: '#51c563',
    950: '#000000',
  },
}

SCSS

$custom: #51c563;
$custom-light: #8dd791;
$custom-dark: #000000;

JSON

{
  "hex": "#51c563",
  "rgb": {
    "r": 81,
    "g": 197,
    "b": 99
  },
  "hsl": {
    "h": 129.31,
    "s": 50,
    "l": 54.51
  },
  "oklch": {
    "l": 0.73432,
    "c": 0.17265,
    "h": 146.5
  },
  "luminance": 0.42583
}

Semantic roles & 50–950 ramp

primary

#51C563

secondary

#D1A0CA

accent

#4EC4DA

background

#F9FDF9

surface

#F1FAF1

border

#CBD3CB

text

#0D140D

muted

#7E837E

Preview Lab

Preview with #51C563

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

Preview Lab → · Contrast checker → · Palette generator →