#99FE66#99FE66

#99FE66 is a very light, highly saturated yellow-green. Relative luminance 0.786; OKLCH L 90.4% C 0.210 H 136.6°. Best body text is #000000 at 16.72:1 contrast (WCAG AA passes).

Color values

HEX	#99FE66
RGB	rgb(153, 254, 102)
HSL	hsl(100, 99%, 70%)
HSV	hsv(100, 60%, 100%)
CMYK	cmyk(39.8%, 0%, 59.8%, 0.4%)
CIE-LAB	lab(91.06, -55.22, 62.02)
CIE-LCH	lch(91.06, 83.05, 131.68°)
OKLab	oklab(90.43% -0.1527 0.1445)
OKLCH	oklch(90.43% 0.21 136.6)
XYZ	xyz(50.9756, 78.6125, 25.0556)
Luminance	0.7862 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Spring Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#99FE66 #CB66FE

analogous

#E5FE66 #99FE66 #66FE7F

triadic

#99FE66 #6699FE #FE6699

tetradic

#99FE66 #66E5FE #CB66FE #FE7F66

square

#99FE66 #66E5FE #CB66FE #FE7F66

split-complementary

#99FE66 #7F66FE #FE66E5

monochromatic

#4FE802 #70FE29 #99FE66 #C2FEA3 #EAFFE0

Accessibility & contrast

On white

1.26

#99FE66 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.72

#99FE66 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #99FE66

16.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##99FE66	#FFFFFF	#000000	##000000
##99FE66	1.00	1.26	16.72	16.72
#FFFFFF	1.26	1.00	21.00	21.00
#000000	16.72	21.00	1.00	1.00
##000000	16.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEB55

Deuteranopia (green-blind)

#F8E272

Tritanopia (blue-blind)

#95F5DE

Achromatopsia (no color)

#E5E5E5

Design tokens & code

CSS

--color: #99fe66;
/* rgb */ color: rgb(153, 254, 102);
/* oklch */ color: oklch(90.4% 0.210 136.6);

Tailwind

colors: {
  custom: {
    50: '#bdff97',
    500: '#99fe66',
    950: '#000000',
  },
}

SCSS

$custom: #99fe66;
$custom-light: #bdff97;
$custom-dark: #000000;

JSON

{
  "hex": "#99fe66",
  "rgb": {
    "r": 153,
    "g": 254,
    "b": 102
  },
  "hsl": {
    "h": 99.868,
    "s": 98.701,
    "l": 69.804
  },
  "oklch": {
    "l": 0.90425,
    "c": 0.21027,
    "h": 136.6
  },
  "luminance": 0.78615
}

Semantic roles & 50–950 ramp

primary

#99FE66

secondary

#A02FD9

accent

#00E698

background

#FDFFFC

surface

#F9FFF5

border

#D2D7CF

text

#13180E

muted

#82867F

Preview Lab

Preview with #99FE66

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

Preview Lab → · Contrast checker → · Palette generator →