#FFFF54#FFFF54

#FFFF54 is a very light, vivid yellow. Relative luminance 0.934; OKLCH L 97.1% C 0.184 H 109.4°. Best body text is #000000 at 19.68:1 contrast (WCAG AA passes).

Color values

HEX	#FFFF54
RGB	rgb(255, 255, 84)
HSL	hsl(60, 100%, 66%)
HSV	hsv(60, 67%, 100%)
CMYK	cmyk(0%, 0%, 67.1%, 0%)
CIE-LAB	lab(97.40, -19.47, 77.66)
CIE-LCH	lch(97.40, 80.07, 104.07°)
OKLab	oklab(97.09% -0.061 0.1734)
OKLCH	oklch(97.09% 0.184 109.4)
XYZ	xyz(78.6029, 93.4224, 22.2776)
Luminance	0.9342 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FFFF54 #5454FF

analogous

#FFAA54 #FFFF54 #AAFF54

triadic

#FFFF54 #54FFFF #FF54FF

tetradic

#FFFF54 #54FFAA #5454FF #FF54AA

square

#FFFF54 #54FFAA #5454FF #FF54AA

split-complementary

#FFFF54 #54AAFF #AA54FF

monochromatic

#D9D900 #FFFF17 #FFFF54 #FFFF91 #FFFFCE

Accessibility & contrast

On white

1.07

#FFFF54 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.68

#FFFF54 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FFFF54

19.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FFFF54	#FFFFFF	#000000	##000000
##FFFF54	1.00	1.07	19.68	19.68
#FFFFFF	1.07	1.00	21.00	21.00
#000000	19.68	21.00	1.00	1.00
##000000	19.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF539

Deuteranopia (green-blind)

#FFFA60

Tritanopia (blue-blind)

#FFEFDD

Achromatopsia (no color)

#F7F7F7

Design tokens & code

CSS

--color: #ffff54;
/* rgb */ color: rgb(255, 255, 84);
/* oklch */ color: oklch(97.1% 0.184 109.4);

Tailwind

colors: {
  custom: {
    50: '#ffff8d',
    500: '#ffff54',
    950: '#000000',
  },
}

SCSS

$custom: #ffff54;
$custom-light: #ffff8d;
$custom-dark: #000000;

JSON

{
  "hex": "#ffff54",
  "rgb": {
    "r": 255,
    "g": 255,
    "b": 84
  },
  "hsl": {
    "h": 60,
    "s": 100,
    "l": 66.471
  },
  "oklch": {
    "l": 0.97088,
    "c": 0.18385,
    "h": 109.4
  },
  "luminance": 0.9342
}

Semantic roles & 50–950 ramp

primary

#FFFF54

secondary

#2525D2

accent

#00E600

background

#FFFFFC

surface

#FFFFF4

border

#D7D7CE

text

#19170D

muted

#87857F

Preview Lab

Preview with #FFFF54

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

Preview Lab → · Contrast checker → · Palette generator →