#FDF866#FDF866

#FDF866 is a very light, vivid yellow. Relative luminance 0.890; OKLCH L 95.6% C 0.165 H 107.3°. Best body text is #000000 at 18.80:1 contrast (WCAG AA passes).

Color values

HEX	#FDF866
RGB	rgb(253, 248, 102)
HSL	hsl(58, 97%, 70%)
HSV	hsv(58, 60%, 99%)
CMYK	cmyk(0%, 2%, 59.7%, 0.8%)
CIE-LAB	lab(95.57, -15.86, 68.74)
CIE-LCH	lch(95.57, 70.55, 102.99°)
OKLab	oklab(95.64% -0.0489 0.1573)
OKLCH	oklch(95.64% 0.165 107.3)
XYZ	xyz(76.4762, 88.9791, 25.7140)
Luminance	0.8898 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FDF866 #666BFD

analogous

#FDAC66 #FDF866 #B7FD66

triadic

#FDF866 #66FDF8 #F866FD

tetradic

#FDF866 #66FDAC #666BFD #FD66B7

square

#FDF866 #66FDAC #666BFD #FD66B7

split-complementary

#FDF866 #66B7FD #AC66FD

monochromatic

#E6DE03 #FCF52A #FDF866 #FEFBA2 #FFFEDF

Accessibility & contrast

On white

1.12

#FDF866 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.80

#FDF866 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FDF866

18.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FDF866	#FFFFFF	#000000	##000000
##FDF866	1.00	1.12	18.80	18.80
#FFFFFF	1.12	1.00	21.00	21.00
#000000	18.80	21.00	1.00	1.00
##000000	18.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEF55

Deuteranopia (green-blind)

#FFF56E

Tritanopia (blue-blind)

#FFE9D9

Achromatopsia (no color)

#F2F2F2

Design tokens & code

CSS

--color: #fdf866;
/* rgb */ color: rgb(253, 248, 102);
/* oklch */ color: oklch(95.6% 0.165 107.3);

Tailwind

colors: {
  custom: {
    50: '#fffa97',
    500: '#fdf866',
    950: '#000000',
  },
}

SCSS

$custom: #fdf866;
$custom-light: #fffa97;
$custom-dark: #000000;

JSON

{
  "hex": "#fdf866",
  "rgb": {
    "r": 253,
    "g": 248,
    "b": 102
  },
  "hsl": {
    "h": 58.013,
    "s": 97.419,
    "l": 69.608
  },
  "oklch": {
    "l": 0.95635,
    "c": 0.1647,
    "h": 107.3
  },
  "luminance": 0.88977
}

Semantic roles & 50–950 ramp

primary

#FDF866

secondary

#2F35D8

accent

#08E600

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#18170E

muted

#86857F

Preview Lab

Preview with #FDF866

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

Preview Lab → · Contrast checker → · Palette generator →