#55B421#55B421

#55B421 is a light, vivid yellow-green. Relative luminance 0.347; OKLCH L 68.5% C 0.197 H 137.5°. Best body text is #000000 at 7.94:1 contrast (WCAG AA passes).

Color values

HEX	#55B421
RGB	rgb(85, 180, 33)
HSL	hsl(99, 69%, 42%)
HSV	hsv(99, 82%, 71%)
CMYK	cmyk(52.8%, 0%, 81.7%, 29.4%)
CIE-LAB	lab(65.50, -52.22, 60.17)
CIE-LCH	lch(65.50, 79.67, 130.95°)
OKLab	oklab(68.53% -0.1449 0.1328)
OKLCH	oklch(68.53% 0.197 137.5)
XYZ	xyz(20.3414, 34.6821, 7.0610)
Luminance	0.3468 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#55B421 #8021B4

analogous

#9EB421 #55B421 #21B437

triadic

#55B421 #2155B4 #B42155

tetradic

#55B421 #219EB4 #8021B4 #B43721

square

#55B421 #219EB4 #8021B4 #B43721

split-complementary

#55B421 #3721B4 #B4219E

monochromatic

#244D0E #3D8018 #55B421 #71DA38 #96E46B

Accessibility & contrast

On white

2.65

#55B421 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.94

#55B421 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #55B421

7.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##55B421	#FFFFFF	#000000	##000000
##55B421	1.00	2.65	7.94	7.94
#FFFFFF	2.65	1.00	21.00	21.00
#000000	7.94	21.00	1.00	1.00
##000000	7.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BAA400

Deuteranopia (green-blind)

#AE9C33

Tritanopia (blue-blind)

#4EAD99

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #55b421;
/* rgb */ color: rgb(85, 180, 33);
/* oklch */ color: oklch(68.5% 0.197 137.5);

Tailwind

colors: {
  custom: {
    50: '#8fcb6a',
    500: '#55b421',
    950: '#000000',
  },
}

SCSS

$custom: #55b421;
$custom-light: #8fcb6a;
$custom-dark: #000000;

JSON

{
  "hex": "#55b421",
  "rgb": {
    "r": 85,
    "g": 180,
    "b": 33
  },
  "hsl": {
    "h": 98.776,
    "s": 69.014,
    "l": 41.765
  },
  "oklch": {
    "l": 0.68532,
    "c": 0.19652,
    "h": 137.5
  },
  "luminance": 0.34684
}

Semantic roles & 50–950 ramp

primary

#55B421

secondary

#A767CA

accent

#3CECAE

background

#F9FCF6

surface

#F2F9EC

border

#CCD2C7

text

#0D1307

muted

#7E827A

Preview Lab

Preview with #55B421

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

Preview Lab → · Contrast checker → · Palette generator →