#FDFF99#FDFF99

#FDFF99 is a very light, vivid yellow. Relative luminance 0.947; OKLCH L 97.7% C 0.125 H 109.5°. Best body text is #000000 at 19.94:1 contrast (WCAG AA passes).

Color values

HEX	#FDFF99
RGB	rgb(253, 255, 153)
HSL	hsl(61, 100%, 80%)
HSV	hsv(61, 40%, 100%)
CMYK	cmyk(0.8%, 0%, 40%, 0%)
CIE-LAB	lab(97.92, -14.99, 48.44)
CIE-LCH	lch(97.92, 50.71, 107.19°)
OKLab	oklab(97.68% -0.0416 0.1175)
OKLCH	oklch(97.68% 0.125 109.5)
XYZ	xyz(82.0189, 94.7041, 44.0899)
Luminance	0.9470 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FDFF99 #9B99FF

analogous

#FFCE99 #FDFF99 #CAFF99

triadic

#FDFF99 #99FDFF #FF99FD

tetradic

#FDFF99 #99FFCE #9B99FF #FF99CA

square

#FDFF99 #99FFCE #9B99FF #FF99CA

split-complementary

#FDFF99 #99CAFF #CE99FF

monochromatic

#FBFF1F #FCFF5C #FDFF99 #FEFFD6 #FEFFE0

Accessibility & contrast

On white

1.05

#FDFF99 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.94

#FDFF99 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FDFF99

19.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FDFF99	#FFFFFF	#000000	##000000
##FDFF99	1.00	1.05	19.94	19.94
#FFFFFF	1.05	1.00	21.00	21.00
#000000	19.94	21.00	1.00	1.00
##000000	19.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF791

Deuteranopia (green-blind)

#FFFB9E

Tritanopia (blue-blind)

#FFF4E6

Achromatopsia (no color)

#F9F9F9

Design tokens & code

CSS

--color: #fdff99;
/* rgb */ color: rgb(253, 255, 153);
/* oklch */ color: oklch(97.7% 0.125 109.5);

Tailwind

colors: {
  custom: {
    50: '#ffffb8',
    500: '#fdff99',
    950: '#000000',
  },
}

SCSS

$custom: #fdff99;
$custom-light: #ffffb8;
$custom-dark: #000000;

JSON

{
  "hex": "#fdff99",
  "rgb": {
    "r": 253,
    "g": 255,
    "b": 153
  },
  "hsl": {
    "h": 61.176,
    "s": 100,
    "l": 80
  },
  "oklch": {
    "l": 0.97678,
    "c": 0.12466,
    "h": 109.5
  },
  "luminance": 0.94703
}

Semantic roles & 50–950 ramp

primary

#FDFF99

secondary

#5D5AE2

accent

#00E604

background

#FFFFFD

surface

#FFFFF8

border

#D7D7D1

text

#181711

muted

#868581

Preview Lab

Preview with #FDFF99

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

Preview Lab → · Contrast checker → · Palette generator →