#55AD21#55AD21

#55AD21 is a light, vivid yellow-green. Relative luminance 0.319; OKLCH L 66.7% C 0.188 H 137.0°. Best body text is #000000 at 7.39:1 contrast (WCAG AA passes).

Color values

HEX	#55AD21
RGB	rgb(85, 173, 33)
HSL	hsl(98, 68%, 40%)
HSV	hsv(98, 81%, 68%)
CMYK	cmyk(50.9%, 0%, 80.9%, 32.2%)
CIE-LAB	lab(63.28, -49.57, 58.12)
CIE-LCH	lch(63.28, 76.39, 130.46°)
OKLab	oklab(66.7% -0.1378 0.1285)
OKLCH	oklch(66.7% 0.188 137)
XYZ	xyz(18.9638, 31.9269, 6.6018)
Luminance	0.3193 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#55AD21 #7921AD

analogous

#9BAD21 #55AD21 #21AD33

triadic

#55AD21 #2155AD #AD2155

tetradic

#55AD21 #219BAD #7921AD #AD3321

square

#55AD21 #219BAD #7921AD #AD3321

split-complementary

#55AD21 #3321AD #AD219B

monochromatic

#22460D #3C7A17 #55AD21 #70D833 #94E266

Accessibility & contrast

On white

2.84

#55AD21 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.39

#55AD21 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #55AD21

7.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##55AD21	#FFFFFF	#000000	##000000
##55AD21	1.00	2.84	7.39	7.39
#FFFFFF	2.84	1.00	21.00	21.00
#000000	7.39	21.00	1.00	1.00
##000000	7.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B39E00

Deuteranopia (green-blind)

#A89632

Tritanopia (blue-blind)

#50A794

Achromatopsia (no color)

#999999

Design tokens & code

CSS

--color: #55ad21;
/* rgb */ color: rgb(85, 173, 33);
/* oklch */ color: oklch(66.7% 0.188 137.0);

Tailwind

colors: {
  custom: {
    50: '#8ec669',
    500: '#55ad21',
    950: '#000000',
  },
}

SCSS

$custom: #55ad21;
$custom-light: #8ec669;
$custom-dark: #000000;

JSON

{
  "hex": "#55ad21",
  "rgb": {
    "r": 85,
    "g": 173,
    "b": 33
  },
  "hsl": {
    "h": 97.714,
    "s": 67.961,
    "l": 40.392
  },
  "oklch": {
    "l": 0.66704,
    "c": 0.1884,
    "h": 137
  },
  "luminance": 0.31928
}

Semantic roles & 50–950 ramp

primary

#55AD21

secondary

#A262C7

accent

#3DEBAA

background

#F9FCF6

surface

#F1F8EB

border

#CBD1C6

text

#0D1307

muted

#7E827A

Preview Lab

Preview with #55AD21

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

Preview Lab → · Contrast checker → · Palette generator →