#F5FF53#F5FF53

#F5FF53 is a very light, vivid yellow. Relative luminance 0.916; OKLCH L 96.3% C 0.187 H 112.7°. Best body text is #000000 at 19.31:1 contrast (WCAG AA passes).

Color values

HEX	#F5FF53
RGB	rgb(245, 255, 83)
HSL	hsl(63, 100%, 66%)
HSV	hsv(63, 67%, 100%)
CMYK	cmyk(3.9%, 0%, 67.5%, 0%)
CIE-LAB	lab(96.64, -23.52, 77.02)
CIE-LCH	lch(96.64, 80.53, 106.98°)
OKLab	oklab(96.3% -0.0719 0.1722)
OKLCH	oklch(96.3% 0.187 112.7)
XYZ	xyz(74.9797, 91.5587, 21.9048)
Luminance	0.9156 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#F5FF53 #5D53FF

analogous

#FFB353 #F5FF53 #9FFF53

triadic

#F5FF53 #53F5FF #FF53F5

tetradic

#F5FF53 #53FFB3 #5D53FF #FF539F

square

#F5FF53 #53FFB3 #5D53FF #FF539F

split-complementary

#F5FF53 #539FFF #B353FF

monochromatic

#CBD800 #F1FF16 #F5FF53 #F9FF90 #FCFFCD

Accessibility & contrast

On white

1.09

#F5FF53 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.31

#F5FF53 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #F5FF53

19.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##F5FF53	#FFFFFF	#000000	##000000
##F5FF53	1.00	1.09	19.31	19.31
#FFFFFF	1.09	1.00	21.00	21.00
#000000	19.31	21.00	1.00	1.00
##000000	19.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF338

Deuteranopia (green-blind)

#FFF760

Tritanopia (blue-blind)

#FFF0DD

Achromatopsia (no color)

#F5F5F5

Design tokens & code

CSS

--color: #f5ff53;
/* rgb */ color: rgb(245, 255, 83);
/* oklch */ color: oklch(96.3% 0.187 112.7);

Tailwind

colors: {
  custom: {
    50: '#fcff8d',
    500: '#f5ff53',
    950: '#000000',
  },
}

SCSS

$custom: #f5ff53;
$custom-light: #fcff8d;
$custom-dark: #000000;

JSON

{
  "hex": "#f5ff53",
  "rgb": {
    "r": 245,
    "g": 255,
    "b": 83
  },
  "hsl": {
    "h": 63.488,
    "s": 100,
    "l": 66.275
  },
  "oklch": {
    "l": 0.96295,
    "c": 0.18661,
    "h": 112.7
  },
  "luminance": 0.91557
}

Semantic roles & 50–950 ramp

primary

#F5FF53

secondary

#2F25D1

accent

#00E60D

background

#FFFFFC

surface

#FFFFF4

border

#D7D7CE

text

#18170D

muted

#86857F

Preview Lab

Preview with #F5FF53

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

Preview Lab → · Contrast checker → · Palette generator →