#55AC21#55AC21

#55AC21 is a light, vivid yellow-green. Relative luminance 0.315; OKLCH L 66.4% C 0.187 H 136.9°. Best body text is #000000 at 7.31:1 contrast (WCAG AA passes).

Color values

HEX	#55AC21
RGB	rgb(85, 172, 33)
HSL	hsl(98, 68%, 40%)
HSV	hsv(98, 81%, 67%)
CMYK	cmyk(50.6%, 0%, 80.8%, 32.5%)
CIE-LAB	lab(62.96, -49.18, 57.83)
CIE-LCH	lch(62.96, 75.91, 130.38°)
OKLab	oklab(66.44% -0.1367 0.1279)
OKLCH	oklch(66.44% 0.187 136.9)
XYZ	xyz(18.7728, 31.5448, 6.5381)
Luminance	0.3155 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#55AC21 #7821AC

analogous

#9AAC21 #55AC21 #21AC32

triadic

#55AC21 #2155AC #AC2155

tetradic

#55AC21 #219AAC #7821AC #AC3221

square

#55AC21 #219AAC #7821AC #AC3221

split-complementary

#55AC21 #3221AC #AC219A

monochromatic

#22450D #3C7917 #55AC21 #70D832 #94E266

Accessibility & contrast

On white

2.87

#55AC21 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.31

#55AC21 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #55AC21

7.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##55AC21	#FFFFFF	#000000	##000000
##55AC21	1.00	2.87	7.31	7.31
#FFFFFF	2.87	1.00	21.00	21.00
#000000	7.31	21.00	1.00	1.00
##000000	7.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B29D00

Deuteranopia (green-blind)

#A79632

Tritanopia (blue-blind)

#50A693

Achromatopsia (no color)

#989898

Design tokens & code

CSS

--color: #55ac21;
/* rgb */ color: rgb(85, 172, 33);
/* oklch */ color: oklch(66.4% 0.187 136.9);

Tailwind

colors: {
  custom: {
    50: '#8ec569',
    500: '#55ac21',
    950: '#000000',
  },
}

SCSS

$custom: #55ac21;
$custom-light: #8ec569;
$custom-dark: #000000;

JSON

{
  "hex": "#55ac21",
  "rgb": {
    "r": 85,
    "g": 172,
    "b": 33
  },
  "hsl": {
    "h": 97.554,
    "s": 67.805,
    "l": 40.196
  },
  "oklch": {
    "l": 0.66443,
    "c": 0.18723,
    "h": 136.9
  },
  "luminance": 0.31546
}

Semantic roles & 50–950 ramp

primary

#55AC21

secondary

#A162C7

accent

#3DEBAA

background

#F9FCF6

surface

#F1F8EB

border

#CBD1C6

text

#0D1307

muted

#7E827A

Preview Lab

Preview with #55AC21

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

Preview Lab → · Contrast checker → · Palette generator →