#FFF366#FFF366

#FFF366 is a very light, vivid yellow. Relative luminance 0.863; OKLCH L 94.8% C 0.160 H 104.4°. Best body text is #000000 at 18.26:1 contrast (WCAG AA passes).

Color values

HEX	#FFF366
RGB	rgb(255, 243, 102)
HSL	hsl(55, 100%, 70%)
HSV	hsv(55, 60%, 100%)
CMYK	cmyk(0%, 4.7%, 60%, 0%)
CIE-LAB	lab(94.45, -12.63, 67.57)
CIE-LCH	lch(94.45, 68.74, 100.58°)
OKLab	oklab(94.78% -0.0399 0.1547)
OKLCH	oklch(94.78% 0.16 104.4)
XYZ	xyz(75.6915, 86.3232, 25.2427)
Luminance	0.8632 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FFF366 #6672FF

analogous

#FFA666 #FFF366 #BFFF66

triadic

#FFF366 #66FFF3 #F366FF

tetradic

#FFF366 #66FFA6 #6672FF #FF66BF

square

#FFF366 #66FFA6 #6672FF #FF66BF

split-complementary

#FFF366 #66BFFF #A666FF

monochromatic

#EBD800 #FFEE29 #FFF366 #FFF8A3 #FFFDE0

Accessibility & contrast

On white

1.15

#FFF366 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.26

#FFF366 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FFF366

18.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FFF366	#FFFFFF	#000000	##000000
##FFF366	1.00	1.15	18.26	18.26
#FFFFFF	1.15	1.00	21.00	21.00
#000000	18.26	21.00	1.00	1.00
##000000	18.26	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEB56

Deuteranopia (green-blind)

#FFF26E

Tritanopia (blue-blind)

#FFE4D5

Achromatopsia (no color)

#EFEFEF

Design tokens & code

CSS

--color: #fff366;
/* rgb */ color: rgb(255, 243, 102);
/* oklch */ color: oklch(94.8% 0.160 104.4);

Tailwind

colors: {
  custom: {
    50: '#fff697',
    500: '#fff366',
    950: '#000000',
  },
}

SCSS

$custom: #fff366;
$custom-light: #fff697;
$custom-dark: #000000;

JSON

{
  "hex": "#fff366",
  "rgb": {
    "r": 255,
    "g": 243,
    "b": 102
  },
  "hsl": {
    "h": 55.294,
    "s": 100,
    "l": 70
  },
  "oklch": {
    "l": 0.94781,
    "c": 0.15977,
    "h": 104.4
  },
  "luminance": 0.8632
}

Semantic roles & 50–950 ramp

primary

#FFF366

secondary

#2F3CDA

accent

#12E600

background

#FFFFFC

surface

#FFFEF5

border

#D7D6CF

text

#19170E

muted

#87857F

Preview Lab

Preview with #FFF366

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

Preview Lab → · Contrast checker → · Palette generator →