#FEFF64#FEFF64

#FEFF64 is a very light, vivid yellow. Relative luminance 0.935; OKLCH L 97.1% C 0.173 H 109.6°. Best body text is #000000 at 19.70:1 contrast (WCAG AA passes).

Color values

HEX	#FEFF64
RGB	rgb(254, 255, 100)
HSL	hsl(60, 100%, 70%)
HSV	hsv(60, 61%, 100%)
CMYK	cmyk(0.4%, 0%, 60.8%, 0%)
CIE-LAB	lab(97.44, -18.96, 71.58)
CIE-LCH	lch(97.44, 74.05, 104.84°)
OKLab	oklab(97.14% -0.058 0.163)
OKLCH	oklch(97.14% 0.173 109.6)
XYZ	xyz(78.9357, 93.5131, 25.9458)
Luminance	0.9351 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FEFF64 #6564FF

analogous

#FFB364 #FEFF64 #B1FF64

triadic

#FEFF64 #64FEFF #FF64FE

tetradic

#FEFF64 #64FFB3 #6564FF #FF64B1

square

#FEFF64 #64FFB3 #6564FF #FF64B1

split-complementary

#FEFF64 #64B1FF #B364FF

monochromatic

#E7E900 #FEFF27 #FEFF64 #FEFFA1 #FFFFDE

Accessibility & contrast

On white

1.07

#FEFF64 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.70

#FEFF64 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FEFF64

19.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FEFF64	#FFFFFF	#000000	##000000
##FEFF64	1.00	1.07	19.70	19.70
#FFFFFF	1.07	1.00	21.00	21.00
#000000	19.70	21.00	1.00	1.00
##000000	19.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF551

Deuteranopia (green-blind)

#FFFA6E

Tritanopia (blue-blind)

#FFF0DF

Achromatopsia (no color)

#F8F8F8

Design tokens & code

CSS

--color: #feff64;
/* rgb */ color: rgb(254, 255, 100);
/* oklch */ color: oklch(97.1% 0.173 109.6);

Tailwind

colors: {
  custom: {
    50: '#ffff96',
    500: '#feff64',
    950: '#000000',
  },
}

SCSS

$custom: #feff64;
$custom-light: #ffff96;
$custom-dark: #000000;

JSON

{
  "hex": "#feff64",
  "rgb": {
    "r": 254,
    "g": 255,
    "b": 100
  },
  "hsl": {
    "h": 60.387,
    "s": 100,
    "l": 69.608
  },
  "oklch": {
    "l": 0.97135,
    "c": 0.173,
    "h": 109.6
  },
  "luminance": 0.93511
}

Semantic roles & 50–950 ramp

primary

#FEFF64

secondary

#2E2DDA

accent

#00E601

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#19170E

muted

#87857F

Preview Lab

Preview with #FEFF64

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

Preview Lab → · Contrast checker → · Palette generator →