#F0FD5B#F0FD5B

#F0FD5B is a very light, vivid yellow. Relative luminance 0.895; OKLCH L 95.6% C 0.180 H 113.7°. Best body text is #000000 at 18.91:1 contrast (WCAG AA passes).

Color values

HEX	#F0FD5B
RGB	rgb(240, 253, 91)
HSL	hsl(65, 98%, 67%)
HSV	hsv(65, 64%, 99%)
CMYK	cmyk(5.1%, 0%, 64%, 0.8%)
CIE-LAB	lab(95.80, -24.12, 73.08)
CIE-LCH	lch(95.80, 76.95, 108.26°)
OKLab	oklab(95.55% -0.0726 0.1652)
OKLCH	oklch(95.55% 0.18 113.7)
XYZ	xyz(72.9507, 89.5326, 23.3341)
Luminance	0.8953 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#F0FD5B #685BFD

analogous

#FDB95B #F0FD5B #9FFD5B

triadic

#F0FD5B #5BF0FD #FD5BF0

tetradic

#F0FD5B #5BFDB9 #685BFD #FD5B9F

square

#F0FD5B #5BFDB9 #685BFD #FD5B9F

split-complementary

#F0FD5B #5B9FFD #B95BFD

monochromatic

#CADB03 #EAFC1F #F0FD5B #F6FE97 #FBFED4

Accessibility & contrast

On white

1.11

#F0FD5B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.91

#F0FD5B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #F0FD5B

18.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##F0FD5B	#FFFFFF	#000000	##000000
##F0FD5B	1.00	1.11	18.91	18.91
#FFFFFF	1.11	1.00	21.00	21.00
#000000	18.91	21.00	1.00	1.00
##000000	18.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF145

Deuteranopia (green-blind)

#FFF566

Tritanopia (blue-blind)

#FFEFDC

Achromatopsia (no color)

#F3F3F3

Design tokens & code

CSS

--color: #f0fd5b;
/* rgb */ color: rgb(240, 253, 91);
/* oklch */ color: oklch(95.6% 0.180 113.7);

Tailwind

colors: {
  custom: {
    50: '#f8fd91',
    500: '#f0fd5b',
    950: '#000000',
  },
}

SCSS

$custom: #f0fd5b;
$custom-light: #f8fd91;
$custom-dark: #000000;

JSON

{
  "hex": "#f0fd5b",
  "rgb": {
    "r": 240,
    "g": 253,
    "b": 91
  },
  "hsl": {
    "h": 64.815,
    "s": 97.59,
    "l": 67.451
  },
  "oklch": {
    "l": 0.95551,
    "c": 0.18046,
    "h": 113.7
  },
  "luminance": 0.89531
}

Semantic roles & 50–950 ramp

primary

#F0FD5B

secondary

#3628D4

accent

#00E612

background

#FFFFFC

surface

#FFFFF4

border

#D7D7CE

text

#18170D

muted

#86857F

Preview Lab

Preview with #F0FD5B

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

Preview Lab → · Contrast checker → · Palette generator →