#51B028#51B028

#51B028 is a light, vivid green. Relative luminance 0.330; OKLCH L 67.4% C 0.190 H 138.3°. Best body text is #000000 at 7.59:1 contrast (WCAG AA passes).

Color values

HEX	#51B028
RGB	rgb(81, 176, 40)
HSL	hsl(102, 63%, 42%)
HSV	hsv(102, 77%, 69%)
CMYK	cmyk(54%, 0%, 77.3%, 31%)
CIE-LAB	lab(64.12, -51.46, 56.71)
CIE-LCH	lch(64.12, 76.58, 132.23°)
OKLab	oklab(67.37% -0.1422 0.1266)
OKLCH	oklch(67.37% 0.19 138.3)
XYZ	xyz(19.3010, 32.9517, 7.3503)
Luminance	0.3295 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51B028 #8728B0

analogous

#95B028 #51B028 #28B043

triadic

#51B028 #2851B0 #B02851

tetradic

#51B028 #2895B0 #8728B0 #B04328

square

#51B028 #2895B0 #8728B0 #B04328

split-complementary

#51B028 #4328B0 #B02895

monochromatic

#234C11 #3A7E1D #51B028 #6DD441 #94DF73

Accessibility & contrast

On white

2.77

#51B028 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.59

#51B028 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51B028

7.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51B028	#FFFFFF	#000000	##000000
##51B028	1.00	2.77	7.59	7.59
#FFFFFF	2.77	1.00	21.00	21.00
#000000	7.59	21.00	1.00	1.00
##000000	7.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B6A004

Deuteranopia (green-blind)

#A99837

Tritanopia (blue-blind)

#49AA96

Achromatopsia (no color)

#9B9B9B

Design tokens & code

CSS

--color: #51b028;
/* rgb */ color: rgb(81, 176, 40);
/* oklch */ color: oklch(67.4% 0.190 138.3);

Tailwind

colors: {
  custom: {
    50: '#8cc86c',
    500: '#51b028',
    950: '#000000',
  },
}

SCSS

$custom: #51b028;
$custom-light: #8cc86c;
$custom-dark: #000000;

JSON

{
  "hex": "#51b028",
  "rgb": {
    "r": 81,
    "g": 176,
    "b": 40
  },
  "hsl": {
    "h": 101.912,
    "s": 62.963,
    "l": 42.353
  },
  "oklch": {
    "l": 0.67366,
    "c": 0.1904,
    "h": 138.3
  },
  "luminance": 0.32953
}

Semantic roles & 50–950 ramp

primary

#51B028

secondary

#AC6DC6

accent

#42E6B5

background

#F9FCF6

surface

#F1F8EC

border

#CBD1C7

text

#0D1307

muted

#7E827A

Preview Lab

Preview with #51B028

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

Preview Lab → · Contrast checker → · Palette generator →