#FEFF63#FEFF63

#FEFF63 is a very light, vivid yellow. Relative luminance 0.935; OKLCH L 97.1% C 0.174 H 109.6°. Best body text is #000000 at 19.70:1 contrast (WCAG AA passes).

Color values

HEX	#FEFF63
RGB	rgb(254, 255, 99)
HSL	hsl(60, 100%, 69%)
HSV	hsv(60, 61%, 100%)
CMYK	cmyk(0.4%, 0%, 61.2%, 0%)
CIE-LAB	lab(97.43, -19.03, 71.98)
CIE-LCH	lch(97.43, 74.45, 104.81°)
OKLab	oklab(97.13% -0.0582 0.1637)
OKLCH	oklch(97.13% 0.174 109.6)
XYZ	xyz(78.8876, 93.4938, 25.6925)
Luminance	0.9349 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FEFF63 #6463FF

analogous

#FFB263 #FEFF63 #B0FF63

triadic

#FEFF63 #63FEFF #FF63FE

tetradic

#FEFF63 #63FFB2 #6463FF #FF63B0

square

#FEFF63 #63FFB2 #6463FF #FF63B0

split-complementary

#FEFF63 #63B0FF #B263FF

monochromatic

#E6E800 #FEFF26 #FEFF63 #FEFFA0 #FFFFDD

Accessibility & contrast

On white

1.07

#FEFF63 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.70

#FEFF63 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FEFF63

19.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FEFF63	#FFFFFF	#000000	##000000
##FEFF63	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)

#FFF550

Deuteranopia (green-blind)

#FFFA6D

Tritanopia (blue-blind)

#FFF0DE

Achromatopsia (no color)

#F8F8F8

Design tokens & code

CSS

--color: #feff63;
/* rgb */ color: rgb(254, 255, 99);
/* oklch */ color: oklch(97.1% 0.174 109.6);

Tailwind

colors: {
  custom: {
    50: '#ffff96',
    500: '#feff63',
    950: '#000000',
  },
}

SCSS

$custom: #feff63;
$custom-light: #ffff96;
$custom-dark: #000000;

JSON

{
  "hex": "#feff63",
  "rgb": {
    "r": 254,
    "g": 255,
    "b": 99
  },
  "hsl": {
    "h": 60.385,
    "s": 100,
    "l": 69.412
  },
  "oklch": {
    "l": 0.97126,
    "c": 0.17374,
    "h": 109.6
  },
  "luminance": 0.93492
}

Semantic roles & 50–950 ramp

primary

#FEFF63

secondary

#2D2CDA

accent

#00E601

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#19170E

muted

#87857F

Preview Lab

Preview with #FEFF63

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

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