#51BB5A#51BB5A

#51BB5A is a light, vivid green. Relative luminance 0.380; OKLCH L 70.7% C 0.167 H 145.1°. Best body text is #000000 at 8.61:1 contrast (WCAG AA passes).

Color values

HEX	#51BB5A
RGB	rgb(81, 187, 90)
HSL	hsl(125, 44%, 53%)
HSV	hsv(125, 57%, 73%)
CMYK	cmyk(56.7%, 0%, 51.9%, 26.7%)
CIE-LAB	lab(68.04, -50.63, 39.80)
CIE-LCH	lch(68.04, 64.40, 141.83°)
OKLab	oklab(70.74% -0.1373 0.0958)
OKLCH	oklch(70.74% 0.167 145.1)
XYZ	xyz(23.0078, 38.0261, 15.7982)
Luminance	0.3803 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51BB5A #BB51B2

analogous

#7DBB51 #51BB5A #51BB8F

triadic

#51BB5A #5A51BB #BB5A51

tetradic

#51BB5A #517DBB #BB51B2 #BB8F51

square

#51BB5A #517DBB #BB51B2 #BB8F51

split-complementary

#51BB5A #8F51BB #BB517D

monochromatic

#29692E #3A9542 #51BB5A #7DCC84 #A9DDAD

Accessibility & contrast

On white

2.44

#51BB5A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.61

#51BB5A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BB5A

8.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51BB5A	#FFFFFF	#000000	##000000
##51BB5A	1.00	2.44	8.61	8.61
#FFFFFF	2.44	1.00	21.00	21.00
#000000	8.61	21.00	1.00	1.00
##000000	8.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BEAC52

Deuteranopia (green-blind)

#B0A261

Tritanopia (blue-blind)

#3DB7A5

Achromatopsia (no color)

#A6A6A6

Design tokens & code

CSS

--color: #51bb5a;
/* rgb */ color: rgb(81, 187, 90);
/* oklch */ color: oklch(70.7% 0.167 145.1);

Tailwind

colors: {
  custom: {
    50: '#8bd08b',
    500: '#51bb5a',
    950: '#000000',
  },
}

SCSS

$custom: #51bb5a;
$custom-light: #8bd08b;
$custom-dark: #000000;

JSON

{
  "hex": "#51bb5a",
  "rgb": {
    "r": 81,
    "g": 187,
    "b": 90
  },
  "hsl": {
    "h": 125.094,
    "s": 43.802,
    "l": 52.549
  },
  "oklch": {
    "l": 0.70738,
    "c": 0.16737,
    "h": 145.1
  },
  "luminance": 0.38028
}

Semantic roles & 50–950 ramp

primary

#51BB5A

secondary

#CB9DC7

accent

#54C9D4

background

#F9FCF8

surface

#F1F9F0

border

#CBD2CB

text

#0D140C

muted

#7E827D

Preview Lab

Preview with #51BB5A

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

Preview Lab → · Contrast checker → · Palette generator →