#FEFF99#FEFF99

#FEFF99 is a very light, vivid yellow. Relative luminance 0.949; OKLCH L 97.8% C 0.125 H 109.0°. Best body text is #000000 at 19.98:1 contrast (WCAG AA passes).

Color values

HEX	#FEFF99
RGB	rgb(254, 255, 153)
HSL	hsl(61, 100%, 80%)
HSV	hsv(61, 40%, 100%)
CMYK	cmyk(0.4%, 0%, 40%, 0%)
CIE-LAB	lab(97.99, -14.61, 48.55)
CIE-LCH	lch(97.99, 50.70, 106.75°)
OKLab	oklab(97.76% -0.0405 0.1178)
OKLCH	oklch(97.76% 0.125 109)
XYZ	xyz(82.3840, 94.8924, 44.1070)
Luminance	0.9489 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FEFF99 #9A99FF

analogous

#FFCD99 #FEFF99 #CBFF99

triadic

#FEFF99 #99FEFF #FF99FE

tetradic

#FEFF99 #99FFCD #9A99FF #FF99CB

square

#FEFF99 #99FFCD #9A99FF #FF99CB

split-complementary

#FEFF99 #99CBFF #CD99FF

monochromatic

#FDFF1F #FDFF5C #FEFF99 #FFFFD6 #FFFFE0

Accessibility & contrast

On white

1.05

#FEFF99 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.98

#FEFF99 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FEFF99

19.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FEFF99	#FFFFFF	#000000	##000000
##FEFF99	1.00	1.05	19.98	19.98
#FFFFFF	1.05	1.00	21.00	21.00
#000000	19.98	21.00	1.00	1.00
##000000	19.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF791

Deuteranopia (green-blind)

#FFFB9E

Tritanopia (blue-blind)

#FFF3E6

Achromatopsia (no color)

#F9F9F9

Design tokens & code

CSS

--color: #feff99;
/* rgb */ color: rgb(254, 255, 153);
/* oklch */ color: oklch(97.8% 0.125 109.0);

Tailwind

colors: {
  custom: {
    50: '#ffffb8',
    500: '#feff99',
    950: '#000000',
  },
}

SCSS

$custom: #feff99;
$custom-light: #ffffb8;
$custom-dark: #000000;

JSON

{
  "hex": "#feff99",
  "rgb": {
    "r": 254,
    "g": 255,
    "b": 153
  },
  "hsl": {
    "h": 60.588,
    "s": 100,
    "l": 80
  },
  "oklch": {
    "l": 0.97757,
    "c": 0.12455,
    "h": 109
  },
  "luminance": 0.94891
}

Semantic roles & 50–950 ramp

primary

#FEFF99

secondary

#5C5AE2

accent

#00E602

background

#FFFFFD

surface

#FFFFF8

border

#D7D7D1

text

#181711

muted

#868581

Preview Lab

Preview with #FEFF99

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

Preview Lab → · Contrast checker → · Palette generator →