#FCFF66#FCFF66

#FCFF66 is a very light, vivid yellow. Relative luminance 0.932; OKLCH L 97.0% C 0.172 H 110.3°. Best body text is #000000 at 19.63:1 contrast (WCAG AA passes).

Color values

HEX	#FCFF66
RGB	rgb(252, 255, 102)
HSL	hsl(61, 100%, 70%)
HSV	hsv(61, 60%, 100%)
CMYK	cmyk(1.2%, 0%, 60%, 0%)
CIE-LAB	lab(97.30, -19.63, 70.59)
CIE-LCH	lch(97.30, 73.27, 105.54°)
OKLab	oklab(96.99% -0.0595 0.1612)
OKLCH	oklch(96.99% 0.172 110.3)
XYZ	xyz(78.3054, 93.1767, 26.4278)
Luminance	0.9317 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FCFF66 #6966FF

analogous

#FFB566 #FCFF66 #B0FF66

triadic

#FCFF66 #66FCFF #FF66FC

tetradic

#FCFF66 #66FFB5 #6966FF #FF66B0

square

#FCFF66 #66FFB5 #6966FF #FF66B0

split-complementary

#FCFF66 #66B0FF #B566FF

monochromatic

#E6EB00 #FBFF29 #FCFF66 #FDFFA3 #FEFFE0

Accessibility & contrast

On white

1.07

#FCFF66 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.63

#FCFF66 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FCFF66

19.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FCFF66	#FFFFFF	#000000	##000000
##FCFF66	1.00	1.07	19.63	19.63
#FFFFFF	1.07	1.00	21.00	21.00
#000000	19.63	21.00	1.00	1.00
##000000	19.63	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: #fcff66;
/* rgb */ color: rgb(252, 255, 102);
/* oklch */ color: oklch(97.0% 0.172 110.3);

Tailwind

colors: {
  custom: {
    50: '#ffff98',
    500: '#fcff66',
    950: '#000000',
  },
}

SCSS

$custom: #fcff66;
$custom-light: #ffff98;
$custom-dark: #000000;

JSON

{
  "hex": "#fcff66",
  "rgb": {
    "r": 252,
    "g": 255,
    "b": 102
  },
  "hsl": {
    "h": 61.176,
    "s": 100,
    "l": 70
  },
  "oklch": {
    "l": 0.96994,
    "c": 0.17184,
    "h": 110.3
  },
  "luminance": 0.93175
}

Semantic roles & 50–950 ramp

primary

#FCFF66

secondary

#322FDA

accent

#00E604

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#18170E

muted

#86857F

Preview Lab

Preview with #FCFF66

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

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