#FDFF3F#FDFF3F

#FDFF3F is a very light, vivid yellow. Relative luminance 0.928; OKLCH L 96.8% C 0.196 H 110.2°. Best body text is #000000 at 19.55:1 contrast (WCAG AA passes).

Color values

HEX	#FDFF3F
RGB	rgb(253, 255, 63)
HSL	hsl(61, 100%, 62%)
HSV	hsv(61, 75%, 100%)
CMYK	cmyk(0.8%, 0%, 75.3%, 0%)
CIE-LAB	lab(97.13, -21.19, 84.20)
CIE-LCH	lch(97.13, 86.82, 104.13°)
OKLab	oklab(96.8% -0.0676 0.1838)
OKLCH	oklch(96.8% 0.196 110.2)
XYZ	xyz(77.1681, 92.7638, 18.5419)
Luminance	0.9276 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FDFF3F #413FFF

analogous

#FFA13F #FDFF3F #9DFF3F

triadic

#FDFF3F #3FFDFF #FF3FFD

tetradic

#FDFF3F #3FFFA1 #413FFF #FF3F9D

square

#FDFF3F #3FFFA1 #413FFF #FF3F9D

split-complementary

#FDFF3F #3F9DFF #A13FFF

monochromatic

#C2C400 #FCFF02 #FDFF3F #FEFF7C #FEFFB9

Accessibility & contrast

On white

1.07

#FDFF3F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.55

#FDFF3F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FDFF3F

19.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FDFF3F	#FFFFFF	#000000	##000000
##FDFF3F	1.00	1.07	19.55	19.55
#FFFFFF	1.07	1.00	21.00	21.00
#000000	19.55	21.00	1.00	1.00
##000000	19.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF401

Deuteranopia (green-blind)

#FFF950

Tritanopia (blue-blind)

#FFEFDB

Achromatopsia (no color)

#F7F7F7

Design tokens & code

CSS

--color: #fdff3f;
/* rgb */ color: rgb(253, 255, 63);
/* oklch */ color: oklch(96.8% 0.196 110.2);

Tailwind

colors: {
  custom: {
    50: '#ffff83',
    500: '#fdff3f',
    950: '#000000',
  },
}

SCSS

$custom: #fdff3f;
$custom-light: #ffff83;
$custom-dark: #000000;

JSON

{
  "hex": "#fdff3f",
  "rgb": {
    "r": 253,
    "g": 255,
    "b": 63
  },
  "hsl": {
    "h": 60.625,
    "s": 100,
    "l": 62.353
  },
  "oklch": {
    "l": 0.96801,
    "c": 0.19583,
    "h": 110.2
  },
  "luminance": 0.92762
}

Semantic roles & 50–950 ramp

primary

#FDFF3F

secondary

#2422C0

accent

#00E602

background

#FFFFFC

surface

#FFFFF4

border

#D7D7CE

text

#19170C

muted

#87857F

Preview Lab

Preview with #FDFF3F

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

Preview Lab → · Contrast checker → · Palette generator →