#FDFF59#FDFF59

#FDFF59 is a very light, vivid yellow. Relative luminance 0.931; OKLCH L 97.0% C 0.181 H 110.0°. Best body text is #000000 at 19.62:1 contrast (WCAG AA passes).

Color values

HEX	#FDFF59
RGB	rgb(253, 255, 89)
HSL	hsl(61, 100%, 67%)
HSV	hsv(61, 65%, 100%)
CMYK	cmyk(0.8%, 0%, 65.1%, 0%)
CIE-LAB	lab(97.28, -20.00, 75.66)
CIE-LCH	lch(97.28, 78.26, 104.81°)
OKLab	oklab(96.97% -0.0619 0.17)
OKLCH	oklch(96.97% 0.181 110)
XYZ	xyz(78.0737, 93.1260, 23.3117)
Luminance	0.9312 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FDFF59 #5B59FF

analogous

#FFAE59 #FDFF59 #AAFF59

triadic

#FDFF59 #59FDFF #FF59FD

tetradic

#FDFF59 #59FFAE #5B59FF #FF59AA

square

#FDFF59 #59FFAE #5B59FF #FF59AA

split-complementary

#FDFF59 #59AAFF #AE59FF

monochromatic

#DBDE00 #FCFF1C #FDFF59 #FEFF96 #FEFFD3

Accessibility & contrast

On white

1.07

#FDFF59 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.62

#FDFF59 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FDFF59

19.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FDFF59	#FFFFFF	#000000	##000000
##FDFF59	1.00	1.07	19.62	19.62
#FFFFFF	1.07	1.00	21.00	21.00
#000000	19.62	21.00	1.00	1.00
##000000	19.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF441

Deuteranopia (green-blind)

#FFFA64

Tritanopia (blue-blind)

#FFF0DD

Achromatopsia (no color)

#F7F7F7

Design tokens & code

CSS

--color: #fdff59;
/* rgb */ color: rgb(253, 255, 89);
/* oklch */ color: oklch(97.0% 0.181 110.0);

Tailwind

colors: {
  custom: {
    50: '#ffff90',
    500: '#fdff59',
    950: '#000000',
  },
}

SCSS

$custom: #fdff59;
$custom-light: #ffff90;
$custom-dark: #000000;

JSON

{
  "hex": "#fdff59",
  "rgb": {
    "r": 253,
    "g": 255,
    "b": 89
  },
  "hsl": {
    "h": 60.723,
    "s": 100,
    "l": 67.451
  },
  "oklch": {
    "l": 0.96965,
    "c": 0.18097,
    "h": 110
  },
  "luminance": 0.93124
}

Semantic roles & 50–950 ramp

primary

#FDFF59

secondary

#2826D6

accent

#00E603

background

#FFFFFC

surface

#FFFFF4

border

#D7D7CE

text

#19170D

muted

#87857F

Preview Lab

Preview with #FDFF59

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

Preview Lab → · Contrast checker → · Palette generator →