#51BD2B#51BD2B

#51BD2B is a light, highly saturated green. Relative luminance 0.383; OKLCH L 70.8% C 0.204 H 139.2°. Best body text is #000000 at 8.66:1 contrast (WCAG AA passes).

Color values

HEX	#51BD2B
RGB	rgb(81, 189, 43)
HSL	hsl(104, 63%, 45%)
HSV	hsv(104, 77%, 74%)
CMYK	cmyk(57.1%, 0%, 77.2%, 25.9%)
CIE-LAB	lab(68.25, -56.05, 59.72)
CIE-LCH	lch(68.25, 81.90, 133.18°)
OKLab	oklab(70.78% -0.1544 0.1333)
OKLCH	oklch(70.78% 0.204 139.2)
XYZ	xyz(22.0261, 38.3170, 8.5203)
Luminance	0.3832 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51BD2B #972BBD

analogous

#9ABD2B #51BD2B #2BBD4E

triadic

#51BD2B #2B51BD #BD2B51

tetradic

#51BD2B #2B9ABD #972BBD #BD4E2B

square

#51BD2B #2B9ABD #972BBD #BD4E2B

split-complementary

#51BD2B #4E2BBD #BD2B9A

monochromatic

#265914 #3C8B20 #51BD2B #72D74E #9AE280

Accessibility & contrast

On white

2.42

#51BD2B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.66

#51BD2B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BD2B

8.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51BD2B	#FFFFFF	#000000	##000000
##51BD2B	1.00	2.42	8.66	8.66
#FFFFFF	2.42	1.00	21.00	21.00
#000000	8.66	21.00	1.00	1.00
##000000	8.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C3AC02

Deuteranopia (green-blind)

#B5A33B

Tritanopia (blue-blind)

#45B7A2

Achromatopsia (no color)

#A6A6A6

Design tokens & code

CSS

--color: #51bd2b;
/* rgb */ color: rgb(81, 189, 43);
/* oklch */ color: oklch(70.8% 0.204 139.2);

Tailwind

colors: {
  custom: {
    50: '#8ed270',
    500: '#51bd2b',
    950: '#000000',
  },
}

SCSS

$custom: #51bd2b;
$custom-light: #8ed270;
$custom-dark: #000000;

JSON

{
  "hex": "#51bd2b",
  "rgb": {
    "r": 81,
    "g": 189,
    "b": 43
  },
  "hsl": {
    "h": 104.384,
    "s": 62.931,
    "l": 45.49
  },
  "oklch": {
    "l": 0.70781,
    "c": 0.20398,
    "h": 139.2
  },
  "luminance": 0.38319
}

Semantic roles & 50–950 ramp

primary

#51BD2B

secondary

#B679CB

accent

#42E6BB

background

#F9FDF7

surface

#F2FAED

border

#CCD3C8

text

#0D1408

muted

#7E837B

Preview Lab

Preview with #51BD2B

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

Preview Lab → · Contrast checker → · Palette generator →