#51B548#51B548

#51B548 is a light, vivid green. Relative luminance 0.353; OKLCH L 69.0% C 0.175 H 142.0°. Best body text is #000000 at 8.05:1 contrast (WCAG AA passes).

Color values

HEX	#51B548
RGB	rgb(81, 181, 72)
HSL	hsl(115, 43%, 50%)
HSV	hsv(115, 60%, 71%)
CMYK	cmyk(55.2%, 0%, 60.2%, 29%)
CIE-LAB	lab(65.95, -50.56, 45.88)
CIE-LCH	lch(65.95, 68.27, 137.78°)
OKLab	oklab(68.95% -0.1379 0.1077)
OKLCH	oklch(68.95% 0.175 142)
XYZ	xyz(21.0859, 35.2632, 11.8250)
Luminance	0.3527 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51B548 #AC48B5

analogous

#88B548 #51B548 #48B576

triadic

#51B548 #4851B5 #B54851

tetradic

#51B548 #4888B5 #AC48B5 #B57648

square

#51B548 #4888B5 #AC48B5 #B57648

split-complementary

#51B548 #7648B5 #B54888

monochromatic

#2A5D25 #3D8937 #51B548 #7AC773 #A3D99F

Accessibility & contrast

On white

2.61

#51B548 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.05

#51B548 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51B548

8.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51B548	#FFFFFF	#000000	##000000
##51B548	1.00	2.61	8.05	8.05
#FFFFFF	2.61	1.00	21.00	21.00
#000000	8.05	21.00	1.00	1.00
##000000	8.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B9A63C

Deuteranopia (green-blind)

#AC9D51

Tritanopia (blue-blind)

#43B09E

Achromatopsia (no color)

#A0A0A0

Design tokens & code

CSS

--color: #51b548;
/* rgb */ color: rgb(81, 181, 72);
/* oklch */ color: oklch(69.0% 0.175 142.0);

Tailwind

colors: {
  custom: {
    50: '#8bcc7f',
    500: '#51b548',
    950: '#000000',
  },
}

SCSS

$custom: #51b548;
$custom-light: #8bcc7f;
$custom-dark: #000000;

JSON

{
  "hex": "#51b548",
  "rgb": {
    "r": 81,
    "g": 181,
    "b": 72
  },
  "hsl": {
    "h": 115.046,
    "s": 43.083,
    "l": 49.608
  },
  "oklch": {
    "l": 0.68954,
    "c": 0.17494,
    "h": 142
  },
  "luminance": 0.35265
}

Semantic roles & 50–950 ramp

primary

#51B548

secondary

#C193C5

accent

#55D3C8

background

#F9FCF7

surface

#F1F9EE

border

#CBD2C9

text

#0D130A

muted

#7E827C

Preview Lab

Preview with #51B548

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

Preview Lab → · Contrast checker → · Palette generator →