#F9FD55#F9FD55

#F9FD55 is a very light, vivid yellow. Relative luminance 0.910; OKLCH L 96.2% C 0.182 H 110.7°. Best body text is #000000 at 19.21:1 contrast (WCAG AA passes).

Color values

HEX	#F9FD55
RGB	rgb(249, 253, 85)
HSL	hsl(61, 98%, 66%)
HSV	hsv(61, 66%, 99%)
CMYK	cmyk(1.6%, 0%, 66.4%, 0.8%)
CIE-LAB	lab(96.43, -20.87, 76.18)
CIE-LCH	lch(96.43, 78.99, 105.32°)
OKLab	oklab(96.2% -0.0645 0.1706)
OKLCH	oklch(96.2% 0.182 110.7)
XYZ	xyz(75.8343, 91.0482, 22.1719)
Luminance	0.9105 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#F9FD55 #5955FD

analogous

#FDAD55 #F9FD55 #A5FD55

triadic

#F9FD55 #55F9FD #FD55F9

tetradic

#F9FD55 #55FDAD #5955FD #FD55A5

square

#F9FD55 #55FDAD #5955FD #FD55A5

split-complementary

#F9FD55 #55A5FD #AD55FD

monochromatic

#D0D503 #F7FC19 #F9FD55 #FBFE91 #FDFECE

Accessibility & contrast

On white

1.09

#F9FD55 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.21

#F9FD55 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #F9FD55

19.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##F9FD55	#FFFFFF	#000000	##000000
##F9FD55	1.00	1.09	19.21	19.21
#FFFFFF	1.09	1.00	21.00	21.00
#000000	19.21	21.00	1.00	1.00
##000000	19.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF23C

Deuteranopia (green-blind)

#FFF761

Tritanopia (blue-blind)

#FFEEDB

Achromatopsia (no color)

#F5F5F5

Design tokens & code

CSS

--color: #f9fd55;
/* rgb */ color: rgb(249, 253, 85);
/* oklch */ color: oklch(96.2% 0.182 110.7);

Tailwind

colors: {
  custom: {
    50: '#fffd8e',
    500: '#f9fd55',
    950: '#000000',
  },
}

SCSS

$custom: #f9fd55;
$custom-light: #fffd8e;
$custom-dark: #000000;

JSON

{
  "hex": "#f9fd55",
  "rgb": {
    "r": 249,
    "g": 253,
    "b": 85
  },
  "hsl": {
    "h": 61.429,
    "s": 97.674,
    "l": 66.275
  },
  "oklch": {
    "l": 0.96204,
    "c": 0.18243,
    "h": 110.7
  },
  "luminance": 0.91046
}

Semantic roles & 50–950 ramp

primary

#F9FD55

secondary

#2B27CF

accent

#00E605

background

#FFFFFC

surface

#FFFFF4

border

#D7D7CE

text

#18170D

muted

#86857F

Preview Lab

Preview with #F9FD55

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

Preview Lab → · Contrast checker → · Palette generator →