#F3FC63#F3FC63

#F3FC63 is a very light, vivid yellow. Relative luminance 0.896; OKLCH L 95.6% C 0.173 H 112.4°. Best body text is #000000 at 18.92:1 contrast (WCAG AA passes).

Color values

HEX	#F3FC63
RGB	rgb(243, 252, 99)
HSL	hsl(64, 96%, 69%)
HSV	hsv(64, 61%, 99%)
CMYK	cmyk(3.6%, 0%, 60.7%, 1.2%)
CIE-LAB	lab(95.82, -21.96, 70.01)
CIE-LCH	lch(95.82, 73.38, 107.41°)
OKLab	oklab(95.64% -0.0659 0.1598)
OKLCH	oklch(95.64% 0.173 112.4)
XYZ	xyz(74.0266, 89.5779, 25.1926)
Luminance	0.8958 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#F3FC63 #6C63FC

analogous

#FCB863 #F3FC63 #A7FC63

triadic

#F3FC63 #63F3FC #FC63F3

tetradic

#F3FC63 #63FCB8 #6C63FC #FC63A7

square

#F3FC63 #63FCB8 #6C63FC #FC63A7

split-complementary

#F3FC63 #63A7FC #B863FC

monochromatic

#D3E004 #EEFB27 #F3FC63 #F8FD9F #FCFEDB

Accessibility & contrast

On white

1.11

#F3FC63 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.92

#F3FC63 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #F3FC63

18.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##F3FC63	#FFFFFF	#000000	##000000
##F3FC63	1.00	1.11	18.92	18.92
#FFFFFF	1.11	1.00	21.00	21.00
#000000	18.92	21.00	1.00	1.00
##000000	18.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF150

Deuteranopia (green-blind)

#FFF56D

Tritanopia (blue-blind)

#FFEEDC

Achromatopsia (no color)

#F3F3F3

Design tokens & code

CSS

--color: #f3fc63;
/* rgb */ color: rgb(243, 252, 99);
/* oklch */ color: oklch(95.6% 0.173 112.4);

Tailwind

colors: {
  custom: {
    50: '#fafd96',
    500: '#f3fc63',
    950: '#000000',
  },
}

SCSS

$custom: #f3fc63;
$custom-light: #fafd96;
$custom-dark: #000000;

JSON

{
  "hex": "#f3fc63",
  "rgb": {
    "r": 243,
    "g": 252,
    "b": 99
  },
  "hsl": {
    "h": 63.529,
    "s": 96.226,
    "l": 68.824
  },
  "oklch": {
    "l": 0.9564,
    "c": 0.17284,
    "h": 112.4
  },
  "luminance": 0.89576
}

Semantic roles & 50–950 ramp

primary

#F3FC63

secondary

#372DD6

accent

#00E60D

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#18170E

muted

#86857F

Preview Lab

Preview with #F3FC63

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

Preview Lab → · Contrast checker → · Palette generator →