#51B25A#51B25A

#51B25A is a light, vivid green. Relative luminance 0.343; OKLCH L 68.4% C 0.155 H 145.4°. Best body text is #000000 at 7.87:1 contrast (WCAG AA passes).

Color values

HEX	#51B25A
RGB	rgb(81, 178, 90)
HSL	hsl(126, 39%, 51%)
HSV	hsv(126, 54%, 70%)
CMYK	cmyk(54.5%, 0%, 49.4%, 30.2%)
CIE-LAB	lab(65.22, -47.06, 36.33)
CIE-LCH	lch(65.22, 59.45, 142.34°)
OKLab	oklab(68.42% -0.1276 0.088)
OKLCH	oklch(68.42% 0.155 145.4)
XYZ	xyz(21.1580, 34.3265, 15.1816)
Luminance	0.3433 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51B25A #B251A9

analogous

#78B251 #51B25A #51B28A

triadic

#51B25A #5A51B2 #B25A51

tetradic

#51B25A #5178B2 #B251A9 #B28A51

square

#51B25A #5178B2 #B251A9 #B28A51

split-complementary

#51B25A #8A51B2 #B25178

monochromatic

#2A5F2F #3D8944 #51B25A #7BC582 #A6D8AA

Accessibility & contrast

On white

2.67

#51B25A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.87

#51B25A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51B25A

7.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51B25A	#FFFFFF	#000000	##000000
##51B25A	1.00	2.67	7.87	7.87
#FFFFFF	2.67	1.00	21.00	21.00
#000000	7.87	21.00	1.00	1.00
##000000	7.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B5A453

Deuteranopia (green-blind)

#A89B60

Tritanopia (blue-blind)

#40AE9D

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #51b25a;
/* rgb */ color: rgb(81, 178, 90);
/* oklch */ color: oklch(68.4% 0.155 145.4);

Tailwind

colors: {
  custom: {
    50: '#8aca8a',
    500: '#51b25a',
    950: '#000000',
  },
}

SCSS

$custom: #51b25a;
$custom-light: #8aca8a;
$custom-dark: #000000;

JSON

{
  "hex": "#51b25a",
  "rgb": {
    "r": 81,
    "g": 178,
    "b": 90
  },
  "hsl": {
    "h": 125.567,
    "s": 38.645,
    "l": 50.784
  },
  "oklch": {
    "l": 0.68421,
    "c": 0.15505,
    "h": 145.4
  },
  "luminance": 0.34328
}

Semantic roles & 50–950 ramp

primary

#51B25A

secondary

#C59AC1

accent

#59C4CF

background

#F8FCF8

surface

#F0F8F0

border

#CBD1CB

text

#0C130C

muted

#7D827D

Preview Lab

Preview with #51B25A

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

Preview Lab → · Contrast checker → · Palette generator →