#F0FF63#F0FF63

#F0FF63 is a very light, vivid yellow. Relative luminance 0.909; OKLCH L 96.0% C 0.177 H 114.4°. Best body text is #000000 at 19.19:1 contrast (WCAG AA passes).

Color values

HEX	#F0FF63
RGB	rgb(240, 255, 99)
HSL	hsl(66, 100%, 69%)
HSV	hsv(66, 61%, 100%)
CMYK	cmyk(5.9%, 0%, 61.2%, 0%)
CIE-LAB	lab(96.39, -24.56, 70.56)
CIE-LCH	lch(96.39, 74.71, 109.19°)
OKLab	oklab(96.04% -0.0731 0.161)
OKLCH	oklch(96.04% 0.177 114.4)
XYZ	xyz(73.9491, 90.9474, 25.4610)
Luminance	0.9095 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#F0FF63 #7263FF

analogous

#FFC063 #F0FF63 #A2FF63

triadic

#F0FF63 #63F0FF #FF63F0

tetradic

#F0FF63 #63FFC0 #7263FF #FF63A2

square

#F0FF63 #63FFC0 #7263FF #FF63A2

split-complementary

#F0FF63 #63A2FF #C063FF

monochromatic

#D1E800 #EAFF26 #F0FF63 #F6FFA0 #FCFFDD

Accessibility & contrast

On white

1.09

#F0FF63 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.19

#F0FF63 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #F0FF63

19.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##F0FF63	#FFFFFF	#000000	##000000
##F0FF63	1.00	1.09	19.19	19.19
#FFFFFF	1.09	1.00	21.00	21.00
#000000	19.19	21.00	1.00	1.00
##000000	19.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF350

Deuteranopia (green-blind)

#FFF66D

Tritanopia (blue-blind)

#FEF1DE

Achromatopsia (no color)

#F5F5F5

Design tokens & code

CSS

--color: #f0ff63;
/* rgb */ color: rgb(240, 255, 99);
/* oklch */ color: oklch(96.0% 0.177 114.4);

Tailwind

colors: {
  custom: {
    50: '#f8ff96',
    500: '#f0ff63',
    950: '#000000',
  },
}

SCSS

$custom: #f0ff63;
$custom-light: #f8ff96;
$custom-dark: #000000;

JSON

{
  "hex": "#f0ff63",
  "rgb": {
    "r": 240,
    "g": 255,
    "b": 99
  },
  "hsl": {
    "h": 65.769,
    "s": 100,
    "l": 69.412
  },
  "oklch": {
    "l": 0.9604,
    "c": 0.17679,
    "h": 114.4
  },
  "luminance": 0.90946
}

Semantic roles & 50–950 ramp

primary

#F0FF63

secondary

#3D2CDA

accent

#00E616

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#18170E

muted

#86857F

Preview Lab

Preview with #F0FF63

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

Preview Lab → · Contrast checker → · Palette generator →