#99D643#99D643

#99D643 is a light, vivid yellow-green. Relative luminance 0.553; OKLCH L 80.7% C 0.185 H 129.4°. Best body text is #000000 at 12.05:1 contrast (WCAG AA passes).

Color values

HEX	#99D643
RGB	rgb(153, 214, 67)
HSL	hsl(85, 64%, 55%)
HSV	hsv(85, 69%, 84%)
CMYK	cmyk(28.5%, 0%, 68.7%, 16.1%)
CIE-LAB	lab(79.20, -41.35, 63.27)
CIE-LCH	lch(79.20, 75.59, 123.17°)
OKLab	oklab(80.66% -0.1174 0.1431)
OKLCH	oklch(80.66% 0.185 129.4)
XYZ	xyz(38.1964, 55.2697, 13.9648)
Luminance	0.5527 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#99D643 #8043D6

analogous

#D6C943 #99D643 #4FD643

triadic

#99D643 #4399D6 #D64399

tetradic

#99D643 #43D6C9 #8043D6 #D6434F

square

#99D643 #43D6C9 #8043D6 #D6434F

split-complementary

#99D643 #434FD6 #C943D6

monochromatic

#58821C #7AB427 #99D643 #B4E175 #D0ECA7

Accessibility & contrast

On white

1.74

#99D643 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.05

#99D643 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #99D643

12.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##99D643	#FFFFFF	#000000	##000000
##99D643	1.00	1.74	12.05	12.05
#FFFFFF	1.74	1.00	21.00	21.00
#000000	12.05	21.00	1.00	1.00
##000000	12.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E0C72C

Deuteranopia (green-blind)

#D7C350

Tritanopia (blue-blind)

#9DCDB9

Achromatopsia (no color)

#C4C4C4

Design tokens & code

CSS

--color: #99d643;
/* rgb */ color: rgb(153, 214, 67);
/* oklch */ color: oklch(80.7% 0.185 129.4);

Tailwind

colors: {
  custom: {
    50: '#bbe37f',
    500: '#99d643',
    950: '#000000',
  },
}

SCSS

$custom: #99d643;
$custom-light: #bbe37f;
$custom-dark: #000000;

JSON

{
  "hex": "#99d643",
  "rgb": {
    "r": 153,
    "g": 214,
    "b": 67
  },
  "hsl": {
    "h": 84.898,
    "s": 64.192,
    "l": 55.098
  },
  "oklch": {
    "l": 0.80665,
    "c": 0.18508,
    "h": 129.4
  },
  "luminance": 0.55271
}

Semantic roles & 50–950 ramp

primary

#99D643

secondary

#573489

accent

#41E786

background

#FDFEFB

surface

#F9FCF2

border

#D2D5CC

text

#12150B

muted

#82847E

Preview Lab

Preview with #99D643

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

Preview Lab → · Contrast checker → · Palette generator →