#99FB66#99FB66

#99FB66 is a very light, highly saturated yellow-green. Relative luminance 0.767; OKLCH L 89.7% C 0.206 H 136.4°. Best body text is #000000 at 16.35:1 contrast (WCAG AA passes).

Color values

HEX	#99FB66
RGB	rgb(153, 251, 102)
HSL	hsl(99, 95%, 69%)
HSV	hsv(99, 59%, 98%)
CMYK	cmyk(39%, 0%, 59.4%, 1.6%)
CIE-LAB	lab(90.19, -54.02, 61.05)
CIE-LCH	lch(90.19, 81.52, 131.51°)
OKLab	oklab(89.72% -0.1494 0.1424)
OKLCH	oklch(89.72% 0.206 136.4)
XYZ	xyz(50.0310, 76.7234, 24.7407)
Luminance	0.7673 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Light Grass Green

#9AF764

ΔE00 0.88

Spring Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#99FB66 #C866FB

analogous

#E4FB66 #99FB66 #66FB7E

triadic

#99FB66 #6699FB #FB6699

tetradic

#99FB66 #66E4FB #C866FB #FB7E66

square

#99FB66 #66E4FB #C866FB #FB7E66

split-complementary

#99FB66 #7E66FB #FB66E4

monochromatic

#51E106 #71F92A #99FB66 #C1FDA2 #E9FEDD

Accessibility & contrast

On white

1.28

#99FB66 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.35

#99FB66 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #99FB66

16.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##99FB66	#FFFFFF	#000000	##000000
##99FB66	1.00	1.28	16.35	16.35
#FFFFFF	1.28	1.00	21.00	21.00
#000000	16.35	21.00	1.00	1.00
##000000	16.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE856

Deuteranopia (green-blind)

#F5E071

Tritanopia (blue-blind)

#95F3DB

Achromatopsia (no color)

#E3E3E3

Design tokens & code

CSS

--color: #99fb66;
/* rgb */ color: rgb(153, 251, 102);
/* oklch */ color: oklch(89.7% 0.206 136.4);

Tailwind

colors: {
  custom: {
    50: '#bdfd96',
    500: '#99fb66',
    950: '#000000',
  },
}

SCSS

$custom: #99fb66;
$custom-light: #bdfd96;
$custom-dark: #000000;

JSON

{
  "hex": "#99fb66",
  "rgb": {
    "r": 153,
    "g": 251,
    "b": 102
  },
  "hsl": {
    "h": 99.463,
    "s": 94.904,
    "l": 69.216
  },
  "oklch": {
    "l": 0.89718,
    "c": 0.20646,
    "h": 136.4
  },
  "luminance": 0.76726
}

Semantic roles & 50–950 ramp

primary

#99FB66

secondary

#9D30D5

accent

#00E697

background

#FDFFFC

surface

#F9FFF5

border

#D2D7CF

text

#12180E

muted

#82867F

Preview Lab

Preview with #99FB66

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

Preview Lab → · Contrast checker → · Palette generator →