#FCFF63#FCFF63

#FCFF63 is a very light, vivid yellow. Relative luminance 0.931; OKLCH L 97.0% C 0.174 H 110.3°. Best body text is #000000 at 19.62:1 contrast (WCAG AA passes).

Color values

HEX	#FCFF63
RGB	rgb(252, 255, 99)
HSL	hsl(61, 100%, 69%)
HSV	hsv(61, 61%, 100%)
CMYK	cmyk(1.2%, 0%, 61.2%, 0%)
CIE-LAB	lab(97.28, -19.82, 71.77)
CIE-LCH	lch(97.28, 74.46, 105.44°)
OKLab	oklab(96.97% -0.0604 0.1633)
OKLCH	oklch(96.97% 0.174 110.3)
XYZ	xyz(78.1593, 93.1183, 25.6584)
Luminance	0.9312 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FCFF63 #6663FF

analogous

#FFB463 #FCFF63 #AEFF63

triadic

#FCFF63 #63FCFF #FF63FC

tetradic

#FCFF63 #63FFB4 #6663FF #FF63AE

square

#FCFF63 #63FFB4 #6663FF #FF63AE

split-complementary

#FCFF63 #63AEFF #B463FF

monochromatic

#E3E800 #FBFF26 #FCFF63 #FDFFA0 #FEFFDD

Accessibility & contrast

On white

1.07

#FCFF63 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.62

#FCFF63 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FCFF63

19.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FCFF63	#FFFFFF	#000000	##000000
##FCFF63	1.00	1.07	19.62	19.62
#FFFFFF	1.07	1.00	21.00	21.00
#000000	19.62	21.00	1.00	1.00
##000000	19.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF550

Deuteranopia (green-blind)

#FFF96D

Tritanopia (blue-blind)

#FFF0DE

Achromatopsia (no color)

#F7F7F7

Design tokens & code

CSS

--color: #fcff63;
/* rgb */ color: rgb(252, 255, 99);
/* oklch */ color: oklch(97.0% 0.174 110.3);

Tailwind

colors: {
  custom: {
    50: '#ffff96',
    500: '#fcff63',
    950: '#000000',
  },
}

SCSS

$custom: #fcff63;
$custom-light: #ffff96;
$custom-dark: #000000;

JSON

{
  "hex": "#fcff63",
  "rgb": {
    "r": 252,
    "g": 255,
    "b": 99
  },
  "hsl": {
    "h": 61.154,
    "s": 100,
    "l": 69.412
  },
  "oklch": {
    "l": 0.96968,
    "c": 0.1741,
    "h": 110.3
  },
  "luminance": 0.93116
}

Semantic roles & 50–950 ramp

primary

#FCFF63

secondary

#302CDA

accent

#00E604

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#18170E

muted

#86857F

Preview Lab

Preview with #FCFF63

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

Preview Lab → · Contrast checker → · Palette generator →