#51B445#51B445

#51B445 is a light, vivid green. Relative luminance 0.348; OKLCH L 68.7% C 0.176 H 141.6°. Best body text is #000000 at 7.96:1 contrast (WCAG AA passes).

Color values

HEX	#51B445
RGB	rgb(81, 180, 69)
HSL	hsl(114, 45%, 49%)
HSV	hsv(114, 62%, 71%)
CMYK	cmyk(55%, 0%, 61.7%, 29.4%)
CIE-LAB	lab(65.61, -50.51, 46.84)
CIE-LCH	lch(65.61, 68.89, 137.16°)
OKLab	oklab(68.66% -0.1379 0.1095)
OKLCH	oklch(68.66% 0.176 141.6)
XYZ	xyz(20.7878, 34.8198, 11.2545)
Luminance	0.3482 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51B445 #A845B4

analogous

#89B445 #51B445 #45B471

triadic

#51B445 #4551B4 #B44551

tetradic

#51B445 #4589B4 #A845B4 #B47145

square

#51B445 #4589B4 #A845B4 #B47145

split-complementary

#51B445 #7145B4 #B44589

monochromatic

#295C23 #3D8834 #51B445 #78C86F #A1D99B

Accessibility & contrast

On white

2.64

#51B445 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.96

#51B445 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51B445

7.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51B445	#FFFFFF	#000000	##000000
##51B445	1.00	2.64	7.96	7.96
#FFFFFF	2.64	1.00	21.00	21.00
#000000	7.96	21.00	1.00	1.00
##000000	7.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B8A539

Deuteranopia (green-blind)

#AB9C4E

Tritanopia (blue-blind)

#44AF9C

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #51b445;
/* rgb */ color: rgb(81, 180, 69);
/* oklch */ color: oklch(68.7% 0.176 141.6);

Tailwind

colors: {
  custom: {
    50: '#8bcb7d',
    500: '#51b445',
    950: '#000000',
  },
}

SCSS

$custom: #51b445;
$custom-light: #8bcb7d;
$custom-dark: #000000;

JSON

{
  "hex": "#51b445",
  "rgb": {
    "r": 81,
    "g": 180,
    "b": 69
  },
  "hsl": {
    "h": 113.514,
    "s": 44.578,
    "l": 48.824
  },
  "oklch": {
    "l": 0.68661,
    "c": 0.17605,
    "h": 141.6
  },
  "luminance": 0.34822
}

Semantic roles & 50–950 ramp

primary

#51B445

secondary

#BF90C5

accent

#54D4C6

background

#F9FCF7

surface

#F1F9EE

border

#CBD2C9

text

#0D130A

muted

#7E827C

Preview Lab

Preview with #51B445

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

Preview Lab → · Contrast checker → · Palette generator →