#FDF66C#FDF66C

#FDF66C is a very light, vivid yellow. Relative luminance 0.879; OKLCH L 95.3% C 0.158 H 106.3°. Best body text is #000000 at 18.58:1 contrast (WCAG AA passes).

Color values

HEX	#FDF66C
RGB	rgb(253, 246, 108)
HSL	hsl(57, 97%, 71%)
HSV	hsv(57, 57%, 99%)
CMYK	cmyk(0%, 2.8%, 57.3%, 0.8%)
CIE-LAB	lab(95.11, -14.49, 65.71)
CIE-LCH	lch(95.11, 67.29, 102.43°)
OKLab	oklab(95.28% -0.0444 0.1516)
OKLCH	oklch(95.28% 0.158 106.3)
XYZ	xyz(76.1730, 87.8793, 27.1343)
Luminance	0.8788 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FDF66C #6C73FD

analogous

#FDAD6C #FDF66C #BCFD6C

triadic

#FDF66C #6CFDF6 #F66CFD

tetradic

#FDF66C #6CFDAD #6C73FD #FD6CBC

square

#FDF66C #6CFDAD #6C73FD #FD6CBC

split-complementary

#FDF66C #6CBCFD #AD6CFD

monochromatic

#EBE003 #FCF230 #FDF66C #FEFAA8 #FFFDE1

Accessibility & contrast

On white

1.13

#FDF66C on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.58

#FDF66C on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FDF66C

18.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FDF66C	#FFFFFF	#000000	##000000
##FDF66C	1.00	1.13	18.58	18.58
#FFFFFF	1.13	1.00	21.00	21.00
#000000	18.58	21.00	1.00	1.00
##000000	18.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEE5D

Deuteranopia (green-blind)

#FFF474

Tritanopia (blue-blind)

#FFE7D8

Achromatopsia (no color)

#F1F1F1

Design tokens & code

CSS

--color: #fdf66c;
/* rgb */ color: rgb(253, 246, 108);
/* oklch */ color: oklch(95.3% 0.158 106.3);

Tailwind

colors: {
  custom: {
    50: '#fff89b',
    500: '#fdf66c',
    950: '#000000',
  },
}

SCSS

$custom: #fdf66c;
$custom-light: #fff89b;
$custom-dark: #000000;

JSON

{
  "hex": "#fdf66c",
  "rgb": {
    "r": 253,
    "g": 246,
    "b": 108
  },
  "hsl": {
    "h": 57.103,
    "s": 97.315,
    "l": 70.784
  },
  "oklch": {
    "l": 0.95284,
    "c": 0.15793,
    "h": 106.3
  },
  "luminance": 0.87877
}

Semantic roles & 50–950 ramp

primary

#FDF66C

secondary

#353DD9

accent

#0BE600

background

#FFFFFC

surface

#FFFEF5

border

#D7D6CF

text

#18170E

muted

#86857F

Preview Lab

Preview with #FDF66C

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

Preview Lab → · Contrast checker → · Palette generator →