#51A427#51A427

#51A427 is a light, vivid yellow-green. Relative luminance 0.284; OKLCH L 64.2% C 0.177 H 137.4°. Best body text is #000000 at 6.69:1 contrast (WCAG AA passes).

Color values

HEX	#51A427
RGB	rgb(81, 164, 39)
HSL	hsl(100, 62%, 40%)
HSV	hsv(100, 76%, 64%)
CMYK	cmyk(50.6%, 0%, 76.2%, 35.7%)
CIE-LAB	lab(60.29, -46.93, 53.32)
CIE-LCH	lch(60.29, 71.03, 131.35°)
OKLab	oklab(64.21% -0.1301 0.1194)
OKLCH	oklch(64.21% 0.177 137.4)
XYZ	xyz(17.0345, 28.4455, 6.5120)
Luminance	0.2845 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51A427 #7A27A4

analogous

#90A427 #51A427 #27A43C

triadic

#51A427 #2751A4 #A42751

tetradic

#51A427 #2790A4 #7A27A4 #A43C27

square

#51A427 #2790A4 #7A27A4 #A43C27

split-complementary

#51A427 #3C27A4 #A42790

monochromatic

#20410F #39731B #51A427 #6BD038 #90DC6A

Accessibility & contrast

On white

3.14

#51A427 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.69

#51A427 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #51A427

6.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51A427	#FFFFFF	#000000	##000000
##51A427	1.00	3.14	6.69	6.69
#FFFFFF	3.14	1.00	21.00	21.00
#000000	6.69	21.00	1.00	1.00
##000000	6.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A9960A

Deuteranopia (green-blind)

#9F8F34

Tritanopia (blue-blind)

#4B9E8C

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #51a427;
/* rgb */ color: rgb(81, 164, 39);
/* oklch */ color: oklch(64.2% 0.177 137.4);

Tailwind

colors: {
  custom: {
    50: '#8ac06a',
    500: '#51a427',
    950: '#000000',
  },
}

SCSS

$custom: #51a427;
$custom-light: #8ac06a;
$custom-dark: #000000;

JSON

{
  "hex": "#51a427",
  "rgb": {
    "r": 81,
    "g": 164,
    "b": 39
  },
  "hsl": {
    "h": 99.84,
    "s": 61.576,
    "l": 39.804
  },
  "oklch": {
    "l": 0.64207,
    "c": 0.17656,
    "h": 137.4
  },
  "luminance": 0.28447
}

Semantic roles & 50–950 ramp

primary

#51A427

secondary

#A365C2

accent

#43E5AE

background

#F8FBF6

surface

#F0F7EC

border

#CBD0C7

text

#0D1207

muted

#7D817A

Preview Lab

Preview with #51A427

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

Preview Lab → · Contrast checker → · Palette generator →