#F5FB66#F5FB66

#F5FB66 is a very light, vivid yellow. Relative luminance 0.894; OKLCH L 95.6% C 0.169 H 111.4°. Best body text is #000000 at 18.87:1 contrast (WCAG AA passes).

Color values

HEX	#F5FB66
RGB	rgb(245, 251, 102)
HSL	hsl(62, 95%, 69%)
HSV	hsv(62, 59%, 98%)
CMYK	cmyk(2.4%, 0%, 59.4%, 1.6%)
CIE-LAB	lab(95.73, -20.49, 68.74)
CIE-LCH	lch(95.73, 71.73, 106.60°)
OKLab	oklab(95.62% -0.0616 0.1574)
OKLCH	oklch(95.62% 0.169 111.4)
XYZ	xyz(74.5537, 89.3679, 25.8902)
Luminance	0.8937 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#F5FB66 #6C66FB

analogous

#FBB766 #F5FB66 #ABFB66

triadic

#F5FB66 #66F5FB #FB66F5

tetradic

#F5FB66 #66FBB7 #6C66FB #FB66AB

square

#F5FB66 #66FBB7 #6C66FB #FB66AB

split-complementary

#F5FB66 #66ABFB #B766FB

monochromatic

#D8E106 #F1F92A #F5FB66 #F9FDA2 #FDFEDD

Accessibility & contrast

On white

1.11

#F5FB66 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.87

#F5FB66 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #F5FB66

18.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##F5FB66	#FFFFFF	#000000	##000000
##F5FB66	1.00	1.11	18.87	18.87
#FFFFFF	1.11	1.00	21.00	21.00
#000000	18.87	21.00	1.00	1.00
##000000	18.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF155

Deuteranopia (green-blind)

#FFF56F

Tritanopia (blue-blind)

#FFEDDB

Achromatopsia (no color)

#F3F3F3

Design tokens & code

CSS

--color: #f5fb66;
/* rgb */ color: rgb(245, 251, 102);
/* oklch */ color: oklch(95.6% 0.169 111.4);

Tailwind

colors: {
  custom: {
    50: '#fbfc97',
    500: '#f5fb66',
    950: '#000000',
  },
}

SCSS

$custom: #f5fb66;
$custom-light: #fbfc97;
$custom-dark: #000000;

JSON

{
  "hex": "#f5fb66",
  "rgb": {
    "r": 245,
    "g": 251,
    "b": 102
  },
  "hsl": {
    "h": 62.416,
    "s": 94.904,
    "l": 69.216
  },
  "oklch": {
    "l": 0.95615,
    "c": 0.16905,
    "h": 111.4
  },
  "luminance": 0.89366
}

Semantic roles & 50–950 ramp

primary

#F5FB66

secondary

#3730D5

accent

#00E609

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#18170E

muted

#86857F

Preview Lab

Preview with #F5FB66

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

Preview Lab → · Contrast checker → · Palette generator →