#F0FF55#F0FF55

#F0FF55 is a very light, vivid yellow. Relative luminance 0.907; OKLCH L 95.9% C 0.187 H 114.3°. Best body text is #000000 at 19.14:1 contrast (WCAG AA passes).

Color values

HEX	#F0FF55
RGB	rgb(240, 255, 85)
HSL	hsl(65, 100%, 67%)
HSV	hsv(65, 67%, 100%)
CMYK	cmyk(5.9%, 0%, 66.7%, 0%)
CIE-LAB	lab(96.29, -25.40, 75.82)
CIE-LCH	lch(96.29, 79.96, 108.52°)
OKLab	oklab(95.93% -0.0767 0.1701)
OKLCH	oklch(95.93% 0.187 114.3)
XYZ	xyz(73.3368, 90.7025, 22.2366)
Luminance	0.9070 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#F0FF55 #6455FF

analogous

#FFB955 #F0FF55 #9BFF55

triadic

#F0FF55 #55F0FF #FF55F0

tetradic

#F0FF55 #55FFB9 #6455FF #FF559B

square

#F0FF55 #55FFB9 #6455FF #FF559B

split-complementary

#F0FF55 #559BFF #B955FF

monochromatic

#C6DA00 #EBFF18 #F0FF55 #F5FF92 #FBFFCF

Accessibility & contrast

On white

1.10

#F0FF55 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.14

#F0FF55 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #F0FF55

19.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##F0FF55	#FFFFFF	#000000	##000000
##F0FF55	1.00	1.10	19.14	19.14
#FFFFFF	1.10	1.00	21.00	21.00
#000000	19.14	21.00	1.00	1.00
##000000	19.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF33B

Deuteranopia (green-blind)

#FFF661

Tritanopia (blue-blind)

#FFF1DD

Achromatopsia (no color)

#F4F4F4

Design tokens & code

CSS

--color: #f0ff55;
/* rgb */ color: rgb(240, 255, 85);
/* oklch */ color: oklch(95.9% 0.187 114.3);

Tailwind

colors: {
  custom: {
    50: '#f8ff8e',
    500: '#f0ff55',
    950: '#000000',
  },
}

SCSS

$custom: #f0ff55;
$custom-light: #f8ff8e;
$custom-dark: #000000;

JSON

{
  "hex": "#f0ff55",
  "rgb": {
    "r": 240,
    "g": 255,
    "b": 85
  },
  "hsl": {
    "h": 65.294,
    "s": 100,
    "l": 66.667
  },
  "oklch": {
    "l": 0.95926,
    "c": 0.18662,
    "h": 114.3
  },
  "luminance": 0.90701
}

Semantic roles & 50–950 ramp

primary

#F0FF55

secondary

#3525D3

accent

#00E614

background

#FFFFFC

surface

#FFFFF4

border

#D7D7CE

text

#18170D

muted

#86857F

Preview Lab

Preview with #F0FF55

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

Preview Lab → · Contrast checker → · Palette generator →