#FFFF55#FFFF55

#FFFF55 is a very light, vivid yellow. Relative luminance 0.934; OKLCH L 97.1% C 0.183 H 109.4°. Best body text is #000000 at 19.69:1 contrast (WCAG AA passes).

Color values

HEX	#FFFF55
RGB	rgb(255, 255, 85)
HSL	hsl(60, 100%, 67%)
HSV	hsv(60, 67%, 100%)
CMYK	cmyk(0%, 0%, 66.7%, 0%)
CIE-LAB	lab(97.41, -19.42, 77.31)
CIE-LCH	lch(97.41, 79.71, 104.10°)
OKLab	oklab(97.1% -0.0608 0.1728)
OKLCH	oklch(97.1% 0.183 109.4)
XYZ	xyz(78.6424, 93.4382, 22.4853)
Luminance	0.9344 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FFFF55 #5555FF

analogous

#FFAA55 #FFFF55 #AAFF55

triadic

#FFFF55 #55FFFF #FF55FF

tetradic

#FFFF55 #55FFAA #5555FF #FF55AA

square

#FFFF55 #55FFAA #5555FF #FF55AA

split-complementary

#FFFF55 #55AAFF #AA55FF

monochromatic

#DADA00 #FFFF18 #FFFF55 #FFFF92 #FFFFCF

Accessibility & contrast

On white

1.07

#FFFF55 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.69

#FFFF55 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FFFF55

19.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FFFF55	#FFFFFF	#000000	##000000
##FFFF55	1.00	1.07	19.69	19.69
#FFFFFF	1.07	1.00	21.00	21.00
#000000	19.69	21.00	1.00	1.00
##000000	19.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF53B

Deuteranopia (green-blind)

#FFFA61

Tritanopia (blue-blind)

#FFEFDD

Achromatopsia (no color)

#F7F7F7

Design tokens & code

CSS

--color: #ffff55;
/* rgb */ color: rgb(255, 255, 85);
/* oklch */ color: oklch(97.1% 0.183 109.4);

Tailwind

colors: {
  custom: {
    50: '#ffff8e',
    500: '#ffff55',
    950: '#000000',
  },
}

SCSS

$custom: #ffff55;
$custom-light: #ffff8e;
$custom-dark: #000000;

JSON

{
  "hex": "#ffff55",
  "rgb": {
    "r": 255,
    "g": 255,
    "b": 85
  },
  "hsl": {
    "h": 60,
    "s": 100,
    "l": 66.667
  },
  "oklch": {
    "l": 0.97095,
    "c": 0.18322,
    "h": 109.4
  },
  "luminance": 0.93436
}

Semantic roles & 50–950 ramp

primary

#FFFF55

secondary

#2525D3

accent

#00E600

background

#FFFFFC

surface

#FFFFF4

border

#D7D7CE

text

#19170D

muted

#87857F

Preview Lab

Preview with #FFFF55

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

Preview Lab → · Contrast checker → · Palette generator →