#FEF366#FEF366

#FEF366 is a very light, vivid yellow. Relative luminance 0.861; OKLCH L 94.7% C 0.160 H 104.8°. Best body text is #000000 at 18.23:1 contrast (WCAG AA passes).

Color values

HEX	#FEF366
RGB	rgb(254, 243, 102)
HSL	hsl(56, 99%, 70%)
HSV	hsv(56, 60%, 100%)
CMYK	cmyk(0%, 4.3%, 59.8%, 0.4%)
CIE-LAB	lab(94.37, -13.03, 67.46)
CIE-LCH	lch(94.37, 68.70, 100.93°)
OKLab	oklab(94.7% -0.0409 0.1545)
OKLCH	oklch(94.7% 0.16 104.8)
XYZ	xyz(75.3245, 86.1339, 25.2255)
Luminance	0.8613 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FEF366 #6671FE

analogous

#FEA766 #FEF366 #BDFE66

triadic

#FEF366 #66FEF3 #F366FE

tetradic

#FEF366 #66FEA7 #6671FE #FE66BD

square

#FEF366 #66FEA7 #6671FE #FE66BD

split-complementary

#FEF366 #66BDFE #A766FE

monochromatic

#E8D702 #FEEE29 #FEF366 #FEF8A3 #FFFDE0

Accessibility & contrast

On white

1.15

#FEF366 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.23

#FEF366 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FEF366

18.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FEF366	#FFFFFF	#000000	##000000
##FEF366	1.00	1.15	18.23	18.23
#FFFFFF	1.15	1.00	21.00	21.00
#000000	18.23	21.00	1.00	1.00
##000000	18.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEB56

Deuteranopia (green-blind)

#FFF26E

Tritanopia (blue-blind)

#FFE4D5

Achromatopsia (no color)

#EFEFEF

Design tokens & code

CSS

--color: #fef366;
/* rgb */ color: rgb(254, 243, 102);
/* oklch */ color: oklch(94.7% 0.160 104.8);

Tailwind

colors: {
  custom: {
    50: '#fff697',
    500: '#fef366',
    950: '#000000',
  },
}

SCSS

$custom: #fef366;
$custom-light: #fff697;
$custom-dark: #000000;

JSON

{
  "hex": "#fef366",
  "rgb": {
    "r": 254,
    "g": 243,
    "b": 102
  },
  "hsl": {
    "h": 55.658,
    "s": 98.701,
    "l": 69.804
  },
  "oklch": {
    "l": 0.94697,
    "c": 0.15984,
    "h": 104.8
  },
  "luminance": 0.86131
}

Semantic roles & 50–950 ramp

primary

#FEF366

secondary

#2F3BD9

accent

#11E600

background

#FFFFFC

surface

#FFFEF5

border

#D7D6CF

text

#18170E

muted

#86857F

Preview Lab

Preview with #FEF366

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

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