#99FC66#99FC66

#99FC66 is a very light, highly saturated yellow-green. Relative luminance 0.774; OKLCH L 90.0% C 0.208 H 136.4°. Best body text is #000000 at 16.47:1 contrast (WCAG AA passes).

Color values

HEX	#99FC66
RGB	rgb(153, 252, 102)
HSL	hsl(100, 96%, 69%)
HSV	hsv(100, 60%, 99%)
CMYK	cmyk(39.3%, 0%, 59.5%, 1.2%)
CIE-LAB	lab(90.48, -54.42, 61.38)
CIE-LCH	lch(90.48, 82.03, 131.56°)
OKLab	oklab(89.95% -0.1505 0.1431)
OKLCH	oklch(89.95% 0.208 136.4)
XYZ	xyz(50.3442, 77.3498, 24.8451)
Luminance	0.7735 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Light Grass Green

#9AF764

ΔE00 1.08

Spring Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#99FC66 #C966FC

analogous

#E4FC66 #99FC66 #66FC7E

triadic

#99FC66 #6699FC #FC6699

tetradic

#99FC66 #66E4FC #C966FC #FC7E66

square

#99FC66 #66E4FC #C966FC #FC7E66

split-complementary

#99FC66 #7E66FC #FC66E4

monochromatic

#50E304 #71FB2A #99FC66 #C1FDA2 #E9FEDE

Accessibility & contrast

On white

1.28

#99FC66 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.47

#99FC66 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #99FC66

16.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##99FC66	#FFFFFF	#000000	##000000
##99FC66	1.00	1.28	16.47	16.47
#FFFFFF	1.28	1.00	21.00	21.00
#000000	16.47	21.00	1.00	1.00
##000000	16.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE955

Deuteranopia (green-blind)

#F6E172

Tritanopia (blue-blind)

#95F4DC

Achromatopsia (no color)

#E4E4E4

Design tokens & code

CSS

--color: #99fc66;
/* rgb */ color: rgb(153, 252, 102);
/* oklch */ color: oklch(90.0% 0.208 136.4);

Tailwind

colors: {
  custom: {
    50: '#bdfe97',
    500: '#99fc66',
    950: '#000000',
  },
}

SCSS

$custom: #99fc66;
$custom-light: #bdfe97;
$custom-dark: #000000;

JSON

{
  "hex": "#99fc66",
  "rgb": {
    "r": 153,
    "g": 252,
    "b": 102
  },
  "hsl": {
    "h": 99.6,
    "s": 96.154,
    "l": 69.412
  },
  "oklch": {
    "l": 0.89954,
    "c": 0.20773,
    "h": 136.4
  },
  "luminance": 0.77352
}

Semantic roles & 50–950 ramp

primary

#99FC66

secondary

#9E30D6

accent

#00E697

background

#FDFFFC

surface

#F9FFF5

border

#D2D7CF

text

#13180E

muted

#82867F

Preview Lab

Preview with #99FC66

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

Preview Lab → · Contrast checker → · Palette generator →