#F3FC4B#F3FC4B

#F3FC4B is a very light, vivid yellow. Relative luminance 0.892; OKLCH L 95.5% C 0.189 H 112.4°. Best body text is #000000 at 18.84:1 contrast (WCAG AA passes).

Color values

HEX	#F3FC4B
RGB	rgb(243, 252, 75)
HSL	hsl(63, 97%, 64%)
HSV	hsv(63, 70%, 99%)
CMYK	cmyk(3.6%, 0%, 70.2%, 1.2%)
CIE-LAB	lab(95.66, -23.30, 78.78)
CIE-LCH	lch(95.66, 82.15, 106.47°)
OKLab	oklab(95.46% -0.0719 0.1747)
OKLCH	oklch(95.46% 0.189 112.4)
XYZ	xyz(73.0448, 89.1852, 20.0219)
Luminance	0.8918 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#F3FC4B #544BFC

analogous

#FCAD4B #F3FC4B #9BFC4B

triadic

#F3FC4B #4BF3FC #FC4BF3

tetradic

#F3FC4B #4BFCAD #544BFC #FC4B9B

square

#F3FC4B #4BFCAD #544BFC #FC4B9B

split-complementary

#F3FC4B #4B9BFC #AD4BFC

monochromatic

#BFC903 #EFFB0F #F3FC4B #F7FD87 #FBFEC3

Accessibility & contrast

On white

1.11

#F3FC4B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.84

#F3FC4B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #F3FC4B

18.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##F3FC4B	#FFFFFF	#000000	##000000
##F3FC4B	1.00	1.11	18.84	18.84
#FFFFFF	1.11	1.00	21.00	21.00
#000000	18.84	21.00	1.00	1.00
##000000	18.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF02B

Deuteranopia (green-blind)

#FFF559

Tritanopia (blue-blind)

#FFEDDA

Achromatopsia (no color)

#F2F2F2

Design tokens & code

CSS

--color: #f3fc4b;
/* rgb */ color: rgb(243, 252, 75);
/* oklch */ color: oklch(95.5% 0.189 112.4);

Tailwind

colors: {
  custom: {
    50: '#fbfd88',
    500: '#f3fc4b',
    950: '#000000',
  },
}

SCSS

$custom: #f3fc4b;
$custom-light: #fbfd88;
$custom-dark: #000000;

JSON

{
  "hex": "#f3fc4b",
  "rgb": {
    "r": 243,
    "g": 252,
    "b": 75
  },
  "hsl": {
    "h": 63.051,
    "s": 96.721,
    "l": 64.118
  },
  "oklch": {
    "l": 0.95457,
    "c": 0.18892,
    "h": 112.4
  },
  "luminance": 0.89183
}

Semantic roles & 50–950 ramp

primary

#F3FC4B

secondary

#2E26C5

accent

#00E60C

background

#FFFFFC

surface

#FFFFF4

border

#D7D7CE

text

#18170C

muted

#86857F

Preview Lab

Preview with #F3FC4B

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

Preview Lab → · Contrast checker → · Palette generator →