#FBFF66#FBFF66

#FBFF66 is a very light, vivid yellow. Relative luminance 0.930; OKLCH L 96.9% C 0.172 H 110.6°. Best body text is #000000 at 19.60:1 contrast (WCAG AA passes).

Color values

HEX	#FBFF66
RGB	rgb(251, 255, 102)
HSL	hsl(62, 100%, 70%)
HSV	hsv(62, 60%, 100%)
CMYK	cmyk(1.6%, 0%, 60%, 0%)
CIE-LAB	lab(97.22, -20.03, 70.48)
CIE-LCH	lch(97.22, 73.27, 105.86°)
OKLab	oklab(96.92% -0.0606 0.161)
OKLCH	oklch(96.92% 0.172 110.6)
XYZ	xyz(77.9442, 92.9905, 26.4108)
Luminance	0.9299 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FBFF66 #6A66FF

analogous

#FFB766 #FBFF66 #AEFF66

triadic

#FBFF66 #66FBFF #FF66FB

tetradic

#FBFF66 #66FFB7 #6A66FF #FF66AE

square

#FBFF66 #66FFB7 #6A66FF #FF66AE

split-complementary

#FBFF66 #66AEFF #B766FF

monochromatic

#E4EB00 #F9FF29 #FBFF66 #FDFFA3 #FEFFE0

Accessibility & contrast

On white

1.07

#FBFF66 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.60

#FBFF66 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FBFF66

19.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FBFF66	#FFFFFF	#000000	##000000
##FBFF66	1.00	1.07	19.60	19.60
#FFFFFF	1.07	1.00	21.00	21.00
#000000	19.60	21.00	1.00	1.00
##000000	19.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF554

Deuteranopia (green-blind)

#FFF96F

Tritanopia (blue-blind)

#FFF0DF

Achromatopsia (no color)

#F7F7F7

Design tokens & code

CSS

--color: #fbff66;
/* rgb */ color: rgb(251, 255, 102);
/* oklch */ color: oklch(96.9% 0.172 110.6);

Tailwind

colors: {
  custom: {
    50: '#ffff98',
    500: '#fbff66',
    950: '#000000',
  },
}

SCSS

$custom: #fbff66;
$custom-light: #ffff98;
$custom-dark: #000000;

JSON

{
  "hex": "#fbff66",
  "rgb": {
    "r": 251,
    "g": 255,
    "b": 102
  },
  "hsl": {
    "h": 61.569,
    "s": 100,
    "l": 70
  },
  "oklch": {
    "l": 0.96915,
    "c": 0.17203,
    "h": 110.6
  },
  "luminance": 0.92989
}

Semantic roles & 50–950 ramp

primary

#FBFF66

secondary

#332FDA

accent

#00E606

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#18170E

muted

#86857F

Preview Lab

Preview with #FBFF66

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

Preview Lab → · Contrast checker → · Palette generator →