#51B133#51B133

#51B133 is a light, vivid green. Relative luminance 0.334; OKLCH L 67.7% C 0.185 H 139.3°. Best body text is #000000 at 7.69:1 contrast (WCAG AA passes).

Color values

HEX	#51B133
RGB	rgb(81, 177, 51)
HSL	hsl(106, 55%, 45%)
HSV	hsv(106, 71%, 69%)
CMYK	cmyk(54.2%, 0%, 71.2%, 30.6%)
CIE-LAB	lab(64.51, -51.06, 53.18)
CIE-LCH	lch(64.51, 73.72, 133.83°)
OKLab	oklab(67.71% -0.1404 0.1208)
OKLCH	oklch(67.71% 0.185 139.3)
XYZ	xyz(19.7122, 33.4310, 8.5454)
Luminance	0.3343 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51B133 #9333B1

analogous

#90B133 #51B133 #33B154

triadic

#51B133 #3351B1 #B13351

tetradic

#51B133 #3390B1 #9333B1 #B15433

square

#51B133 #3390B1 #9333B1 #B15433

split-complementary

#51B133 #5433B1 #B13390

monochromatic

#265218 #3B8125 #51B133 #71CE54 #98DB83

Accessibility & contrast

On white

2.73

#51B133 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.69

#51B133 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51B133

7.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51B133	#FFFFFF	#000000	##000000
##51B133	1.00	2.73	7.69	7.69
#FFFFFF	2.73	1.00	21.00	21.00
#000000	7.69	21.00	1.00	1.00
##000000	7.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B6A11F

Deuteranopia (green-blind)

#AA993F

Tritanopia (blue-blind)

#47AB98

Achromatopsia (no color)

#9C9C9C

Design tokens & code

CSS

--color: #51b133;
/* rgb */ color: rgb(81, 177, 51);
/* oklch */ color: oklch(67.7% 0.185 139.3);

Tailwind

colors: {
  custom: {
    50: '#8bc972',
    500: '#51b133',
    950: '#000000',
  },
}

SCSS

$custom: #51b133;
$custom-light: #8bc972;
$custom-dark: #000000;

JSON

{
  "hex": "#51b133",
  "rgb": {
    "r": 81,
    "g": 177,
    "b": 51
  },
  "hsl": {
    "h": 105.714,
    "s": 55.263,
    "l": 44.706
  },
  "oklch": {
    "l": 0.67707,
    "c": 0.18523,
    "h": 139.3
  },
  "luminance": 0.33433
}

Semantic roles & 50–950 ramp

primary

#51B133

secondary

#B37BC5

accent

#49DFBB

background

#F9FCF7

surface

#F1F8ED

border

#CBD1C8

text

#0D1308

muted

#7E827B

Preview Lab

Preview with #51B133

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

Preview Lab → · Contrast checker → · Palette generator →