#F5FF58#F5FF58

#F5FF58 is a very light, vivid yellow. Relative luminance 0.916; OKLCH L 96.3% C 0.183 H 112.7°. Best body text is #000000 at 19.33:1 contrast (WCAG AA passes).

Color values

HEX	#F5FF58
RGB	rgb(245, 255, 88)
HSL	hsl(64, 100%, 67%)
HSV	hsv(64, 65%, 100%)
CMYK	cmyk(3.9%, 0%, 65.5%, 0%)
CIE-LAB	lab(96.67, -23.25, 75.22)
CIE-LCH	lch(96.67, 78.73, 107.18°)
OKLab	oklab(96.33% -0.0707 0.1692)
OKLCH	oklch(96.33% 0.183 112.7)
XYZ	xyz(75.1798, 91.6387, 22.9583)
Luminance	0.9164 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#F5FF58 #6258FF

analogous

#FFB658 #F5FF58 #A1FF58

triadic

#F5FF58 #58F5FF #FF58F5

tetradic

#F5FF58 #58FFB6 #6258FF #FF58A1

square

#F5FF58 #58FFB6 #6258FF #FF58A1

split-complementary

#F5FF58 #58A1FF #B658FF

monochromatic

#CFDD00 #F1FF1B #F5FF58 #F9FF95 #FCFFD2

Accessibility & contrast

On white

1.09

#F5FF58 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.33

#F5FF58 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #F5FF58

19.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##F5FF58	#FFFFFF	#000000	##000000
##F5FF58	1.00	1.09	19.33	19.33
#FFFFFF	1.09	1.00	21.00	21.00
#000000	19.33	21.00	1.00	1.00
##000000	19.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF440

Deuteranopia (green-blind)

#FFF764

Tritanopia (blue-blind)

#FFF0DD

Achromatopsia (no color)

#F5F5F5

Design tokens & code

CSS

--color: #f5ff58;
/* rgb */ color: rgb(245, 255, 88);
/* oklch */ color: oklch(96.3% 0.183 112.7);

Tailwind

colors: {
  custom: {
    50: '#fcff8f',
    500: '#f5ff58',
    950: '#000000',
  },
}

SCSS

$custom: #f5ff58;
$custom-light: #fcff8f;
$custom-dark: #000000;

JSON

{
  "hex": "#f5ff58",
  "rgb": {
    "r": 245,
    "g": 255,
    "b": 88
  },
  "hsl": {
    "h": 63.593,
    "s": 100,
    "l": 67.255
  },
  "oklch": {
    "l": 0.96331,
    "c": 0.18336,
    "h": 112.7
  },
  "luminance": 0.91637
}

Semantic roles & 50–950 ramp

primary

#F5FF58

secondary

#3026D6

accent

#00E60E

background

#FFFFFC

surface

#FFFFF4

border

#D7D7CE

text

#18170D

muted

#86857F

Preview Lab

Preview with #F5FF58

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

Preview Lab → · Contrast checker → · Palette generator →