#F3FB63#F3FB63

#F3FB63 is a very light, vivid yellow. Relative luminance 0.889; OKLCH L 95.4% C 0.172 H 112.1°. Best body text is #000000 at 18.79:1 contrast (WCAG AA passes).

Color values

HEX	#F3FB63
RGB	rgb(243, 251, 99)
HSL	hsl(63, 95%, 69%)
HSV	hsv(63, 61%, 98%)
CMYK	cmyk(3.2%, 0%, 60.6%, 1.6%)
CIE-LAB	lab(95.56, -21.48, 69.73)
CIE-LCH	lch(95.56, 72.97, 107.12°)
OKLab	oklab(95.43% -0.0646 0.1592)
OKLCH	oklch(95.43% 0.172 112.1)
XYZ	xyz(73.7134, 88.9515, 25.0882)
Luminance	0.8895 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#F3FB63 #6B63FB

analogous

#FBB763 #F3FB63 #A7FB63

triadic

#F3FB63 #63F3FB #FB63F3

tetradic

#F3FB63 #63FBB7 #6B63FB #FB63A7

square

#F3FB63 #63FBB7 #6B63FB #FB63A7

split-complementary

#F3FB63 #63A7FB #B763FB

monochromatic

#D3DE06 #EEF927 #F3FB63 #F8FD9F #FCFEDA

Accessibility & contrast

On white

1.12

#F3FB63 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.79

#F3FB63 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #F3FB63

18.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##F3FB63	#FFFFFF	#000000	##000000
##F3FB63	1.00	1.12	18.79	18.79
#FFFFFF	1.12	1.00	21.00	21.00
#000000	18.79	21.00	1.00	1.00
##000000	18.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF051

Deuteranopia (green-blind)

#FFF46D

Tritanopia (blue-blind)

#FFEDDB

Achromatopsia (no color)

#F2F2F2

Design tokens & code

CSS

--color: #f3fb63;
/* rgb */ color: rgb(243, 251, 99);
/* oklch */ color: oklch(95.4% 0.172 112.1);

Tailwind

colors: {
  custom: {
    50: '#fafc95',
    500: '#f3fb63',
    950: '#000000',
  },
}

SCSS

$custom: #f3fb63;
$custom-light: #fafc95;
$custom-dark: #000000;

JSON

{
  "hex": "#f3fb63",
  "rgb": {
    "r": 243,
    "g": 251,
    "b": 99
  },
  "hsl": {
    "h": 63.158,
    "s": 95,
    "l": 68.627
  },
  "oklch": {
    "l": 0.95431,
    "c": 0.17178,
    "h": 112.1
  },
  "luminance": 0.8895
}

Semantic roles & 50–950 ramp

primary

#F3FB63

secondary

#362DD5

accent

#00E60C

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#18170E

muted

#86857F

Preview Lab

Preview with #F3FB63

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

Preview Lab → · Contrast checker → · Palette generator →