#FEFF3F#FEFF3F

#FEFF3F is a very light, vivid yellow. Relative luminance 0.929; OKLCH L 96.9% C 0.196 H 109.9°. Best body text is #000000 at 19.59:1 contrast (WCAG AA passes).

Color values

HEX	#FEFF3F
RGB	rgb(254, 255, 63)
HSL	hsl(60, 100%, 62%)
HSV	hsv(60, 75%, 100%)
CMYK	cmyk(0.4%, 0%, 75.3%, 0%)
CIE-LAB	lab(97.21, -20.78, 84.30)
CIE-LCH	lch(97.21, 86.82, 103.85°)
OKLab	oklab(96.88% -0.0665 0.184)
OKLCH	oklch(96.88% 0.196 109.9)
XYZ	xyz(77.5331, 92.9520, 18.5590)
Luminance	0.9295 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FEFF3F #403FFF

analogous

#FFA03F #FEFF3F #9EFF3F

triadic

#FEFF3F #3FFEFF #FF3FFE

tetradic

#FEFF3F #3FFFA0 #403FFF #FF3F9E

square

#FEFF3F #3FFFA0 #403FFF #FF3F9E

split-complementary

#FEFF3F #3F9EFF #A03FFF

monochromatic

#C3C400 #FEFF02 #FEFF3F #FEFF7C #FFFFB9

Accessibility & contrast

On white

1.07

#FEFF3F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.59

#FEFF3F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FEFF3F

19.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FEFF3F	#FFFFFF	#000000	##000000
##FEFF3F	1.00	1.07	19.59	19.59
#FFFFFF	1.07	1.00	21.00	21.00
#000000	19.59	21.00	1.00	1.00
##000000	19.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF401

Deuteranopia (green-blind)

#FFFA50

Tritanopia (blue-blind)

#FFEFDB

Achromatopsia (no color)

#F7F7F7

Design tokens & code

CSS

--color: #feff3f;
/* rgb */ color: rgb(254, 255, 63);
/* oklch */ color: oklch(96.9% 0.196 109.9);

Tailwind

colors: {
  custom: {
    50: '#ffff83',
    500: '#feff3f',
    950: '#000000',
  },
}

SCSS

$custom: #feff3f;
$custom-light: #ffff83;
$custom-dark: #000000;

JSON

{
  "hex": "#feff3f",
  "rgb": {
    "r": 254,
    "g": 255,
    "b": 63
  },
  "hsl": {
    "h": 60.313,
    "s": 100,
    "l": 62.353
  },
  "oklch": {
    "l": 0.96881,
    "c": 0.19562,
    "h": 109.9
  },
  "luminance": 0.9295
}

Semantic roles & 50–950 ramp

primary

#FEFF3F

secondary

#2322C0

accent

#00E601

background

#FFFFFC

surface

#FFFFF4

border

#D7D7CE

text

#19170C

muted

#87857F

Preview Lab

Preview with #FEFF3F

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

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