#FFF166#FFF166

#FFF166 is a very light, vivid yellow. Relative luminance 0.851; OKLCH L 94.4% C 0.158 H 103.6°. Best body text is #000000 at 18.03:1 contrast (WCAG AA passes).

Color values

HEX	#FFF166
RGB	rgb(255, 241, 102)
HSL	hsl(55, 100%, 70%)
HSV	hsv(55, 60%, 100%)
CMYK	cmyk(0%, 5.5%, 60%, 0%)
CIE-LAB	lab(93.94, -11.64, 67.01)
CIE-LCH	lch(93.94, 68.02, 99.86°)
OKLab	oklab(94.38% -0.0371 0.1535)
OKLCH	oklch(94.38% 0.158 103.6)
XYZ	xyz(75.0963, 85.1327, 25.0443)
Luminance	0.8513 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FFF166 #6674FF

analogous

#FFA566 #FFF166 #C0FF66

triadic

#FFF166 #66FFF1 #F166FF

tetradic

#FFF166 #66FFA5 #6674FF #FF66C0

square

#FFF166 #66FFA5 #6674FF #FF66C0

split-complementary

#FFF166 #66C0FF #A566FF

monochromatic

#EBD500 #FFEB29 #FFF166 #FFF7A3 #FFFCE0

Accessibility & contrast

On white

1.16

#FFF166 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.03

#FFF166 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FFF166

18.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FFF166	#FFFFFF	#000000	##000000
##FFF166	1.00	1.16	18.03	18.03
#FFFFFF	1.16	1.00	21.00	21.00
#000000	18.03	21.00	1.00	1.00
##000000	18.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEA56

Deuteranopia (green-blind)

#FFF16E

Tritanopia (blue-blind)

#FFE2D3

Achromatopsia (no color)

#EEEEEE

Design tokens & code

CSS

--color: #fff166;
/* rgb */ color: rgb(255, 241, 102);
/* oklch */ color: oklch(94.4% 0.158 103.6);

Tailwind

colors: {
  custom: {
    50: '#fff597',
    500: '#fff166',
    950: '#000000',
  },
}

SCSS

$custom: #fff166;
$custom-light: #fff597;
$custom-dark: #000000;

JSON

{
  "hex": "#fff166",
  "rgb": {
    "r": 255,
    "g": 241,
    "b": 102
  },
  "hsl": {
    "h": 54.51,
    "s": 100,
    "l": 70
  },
  "oklch": {
    "l": 0.94375,
    "c": 0.15795,
    "h": 103.6
  },
  "luminance": 0.8513
}

Semantic roles & 50–950 ramp

primary

#FFF166

secondary

#2F3FDA

accent

#15E600

background

#FFFFFC

surface

#FFFEF5

border

#D7D6CF

text

#19170E

muted

#87857F

Preview Lab

Preview with #FFF166

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

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