#51C87B#51C87B

#51C87B is a light, vivid green. Relative luminance 0.445; OKLCH L 74.6% C 0.154 H 152.3°. Best body text is #000000 at 9.90:1 contrast (WCAG AA passes).

Color values

HEX	#51C87B
RGB	rgb(81, 200, 123)
HSL	hsl(141, 52%, 55%)
HSV	hsv(141, 60%, 78%)
CMYK	cmyk(59.5%, 0%, 38.5%, 21.6%)
CIE-LAB	lab(72.55, -50.51, 28.81)
CIE-LCH	lch(72.55, 58.14, 150.30°)
OKLab	oklab(74.6% -0.1367 0.0718)
OKLCH	oklch(74.6% 0.154 152.3)
XYZ	xyz(27.6206, 44.4853, 25.8660)
Luminance	0.4449 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51C87B #C8519E

analogous

#63C851 #51C87B #51C8B6

triadic

#51C87B #7B51C8 #C87B51

tetradic

#51C87B #5163C8 #C8519E #C8B651

square

#51C87B #5163C8 #C8519E #C8B651

split-complementary

#51C87B #B651C8 #C85163

monochromatic

#267943 #35A75D #51C87B #80D79E #AEE5C2

Accessibility & contrast

On white

2.12

#51C87B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.90

#51C87B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51C87B

9.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51C87B	#FFFFFF	#000000	##000000
##51C87B	1.00	2.12	9.90	9.90
#FFFFFF	2.12	1.00	21.00	21.00
#000000	9.90	21.00	1.00	1.00
##000000	9.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C8B976

Deuteranopia (green-blind)

#B8AE80

Tritanopia (blue-blind)

#2AC5B5

Achromatopsia (no color)

#B2B2B2

Design tokens & code

CSS

--color: #51c87b;
/* rgb */ color: rgb(81, 200, 123);
/* oklch */ color: oklch(74.6% 0.154 152.3);

Tailwind

colors: {
  custom: {
    50: '#8dd9a2',
    500: '#51c87b',
    950: '#000000',
  },
}

SCSS

$custom: #51c87b;
$custom-light: #8dd9a2;
$custom-dark: #000000;

JSON

{
  "hex": "#51c87b",
  "rgb": {
    "r": 81,
    "g": 200,
    "b": 123
  },
  "hsl": {
    "h": 141.176,
    "s": 51.965,
    "l": 55.098
  },
  "oklch": {
    "l": 0.74603,
    "c": 0.15445,
    "h": 152.3
  },
  "luminance": 0.44488
}

Semantic roles & 50–950 ramp

primary

#51C87B

secondary

#D3A1C2

accent

#4CA9DB

background

#F9FDFA

surface

#F1FBF3

border

#CBD4CD

text

#0D150F

muted

#7E837F

Preview Lab

Preview with #51C87B

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

Preview Lab → · Contrast checker → · Palette generator →