#FCFF51#FCFF51

#FCFF51 is a very light, vivid yellow. Relative luminance 0.928; OKLCH L 96.8% C 0.186 H 110.4°. Best body text is #000000 at 19.56:1 contrast (WCAG AA passes).

Color values

HEX	#FCFF51
RGB	rgb(252, 255, 81)
HSL	hsl(61, 100%, 66%)
HSV	hsv(61, 68%, 100%)
CMYK	cmyk(1.2%, 0%, 68.2%, 0%)
CIE-LAB	lab(97.15, -20.82, 78.41)
CIE-LCH	lch(97.15, 81.12, 104.87°)
OKLab	oklab(96.83% -0.0649 0.1746)
OKLCH	oklch(96.83% 0.186 110.4)
XYZ	xyz(77.3927, 92.8116, 21.6206)
Luminance	0.9281 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FCFF51 #5451FF

analogous

#FFAB51 #FCFF51 #A5FF51

triadic

#FCFF51 #51FCFF #FF51FC

tetradic

#FCFF51 #51FFAB #5451FF #FF51A5

square

#FCFF51 #51FFAB #5451FF #FF51A5

split-complementary

#FCFF51 #51A5FF #AB51FF

monochromatic

#D2D600 #FBFF14 #FCFF51 #FDFF8E #FEFFCB

Accessibility & contrast

On white

1.07

#FCFF51 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.56

#FCFF51 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FCFF51

19.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FCFF51	#FFFFFF	#000000	##000000
##FCFF51	1.00	1.07	19.56	19.56
#FFFFFF	1.07	1.00	21.00	21.00
#000000	19.56	21.00	1.00	1.00
##000000	19.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF434

Deuteranopia (green-blind)

#FFF95E

Tritanopia (blue-blind)

#FFEFDD

Achromatopsia (no color)

#F7F7F7

Design tokens & code

CSS

--color: #fcff51;
/* rgb */ color: rgb(252, 255, 81);
/* oklch */ color: oklch(96.8% 0.186 110.4);

Tailwind

colors: {
  custom: {
    50: '#ffff8c',
    500: '#fcff51',
    950: '#000000',
  },
}

SCSS

$custom: #fcff51;
$custom-light: #ffff8c;
$custom-dark: #000000;

JSON

{
  "hex": "#fcff51",
  "rgb": {
    "r": 252,
    "g": 255,
    "b": 81
  },
  "hsl": {
    "h": 61.034,
    "s": 100,
    "l": 65.882
  },
  "oklch": {
    "l": 0.96828,
    "c": 0.18629,
    "h": 110.4
  },
  "luminance": 0.9281
}

Semantic roles & 50–950 ramp

primary

#FCFF51

secondary

#2825D0

accent

#00E604

background

#FFFFFC

surface

#FFFFF4

border

#D7D7CE

text

#19170D

muted

#87857F

Preview Lab

Preview with #FCFF51

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

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