#51B033#51B033

#51B033 is a light, vivid green. Relative luminance 0.330; OKLCH L 67.4% C 0.184 H 139.3°. Best body text is #000000 at 7.61:1 contrast (WCAG AA passes).

Color values

HEX	#51B033
RGB	rgb(81, 176, 51)
HSL	hsl(106, 55%, 45%)
HSV	hsv(106, 71%, 69%)
CMYK	cmyk(54%, 0%, 71%, 31%)
CIE-LAB	lab(64.19, -50.68, 52.85)
CIE-LCH	lch(64.19, 73.22, 133.80°)
OKLab	oklab(67.44% -0.1394 0.1201)
OKLCH	oklch(67.44% 0.184 139.3)
XYZ	xyz(19.5154, 33.0375, 8.4798)
Luminance	0.3304 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51B033 #9233B0

analogous

#90B033 #51B033 #33B054

triadic

#51B033 #3351B0 #B03351

tetradic

#51B033 #3390B0 #9233B0 #B05433

square

#51B033 #3390B0 #9233B0 #B05433

split-complementary

#51B033 #5433B0 #B03390

monochromatic

#255118 #3B8125 #51B033 #70CD53 #98DB82

Accessibility & contrast

On white

2.76

#51B033 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.61

#51B033 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51B033

7.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51B033	#FFFFFF	#000000	##000000
##51B033	1.00	2.76	7.61	7.61
#FFFFFF	2.76	1.00	21.00	21.00
#000000	7.61	21.00	1.00	1.00
##000000	7.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B5A11F

Deuteranopia (green-blind)

#A9993F

Tritanopia (blue-blind)

#48AA97

Achromatopsia (no color)

#9C9C9C

Design tokens & code

CSS

--color: #51b033;
/* rgb */ color: rgb(81, 176, 51);
/* oklch */ color: oklch(67.4% 0.184 139.3);

Tailwind

colors: {
  custom: {
    50: '#8bc872',
    500: '#51b033',
    950: '#000000',
  },
}

SCSS

$custom: #51b033;
$custom-light: #8bc872;
$custom-dark: #000000;

JSON

{
  "hex": "#51b033",
  "rgb": {
    "r": 81,
    "g": 176,
    "b": 51
  },
  "hsl": {
    "h": 105.6,
    "s": 55.066,
    "l": 44.51
  },
  "oklch": {
    "l": 0.67445,
    "c": 0.18401,
    "h": 139.3
  },
  "luminance": 0.33039
}

Semantic roles & 50–950 ramp

primary

#51B033

secondary

#B37BC4

accent

#49DEBB

background

#F9FCF7

surface

#F1F8ED

border

#CBD1C8

text

#0D1308

muted

#7E827B

Preview Lab

Preview with #51B033

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

Preview Lab → · Contrast checker → · Palette generator →