#FEF209#FEF209

#FEF209 is a very light, vivid yellow. Relative luminance 0.846; OKLCH L 94.0% C 0.200 H 106.0°. Best body text is #000000 at 17.92:1 contrast (WCAG AA passes).

Color values

HEX	#FEF209
RGB	rgb(254, 242, 9)
HSL	hsl(57, 99%, 52%)
HSV	hsv(57, 96%, 100%)
CMYK	cmyk(0%, 4.7%, 96.5%, 0.4%)
CIE-LAB	lab(93.71, -15.67, 91.28)
CIE-LCH	lch(93.71, 92.62, 99.74°)
OKLab	oklab(94.04% -0.0549 0.1919)
OKLCH	oklch(94.04% 0.2 106)
XYZ	xyz(72.6779, 84.5978, 12.7591)
Luminance	0.8459 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FEF209 #0915FE

analogous

#FE7809 #FEF209 #90FE09

triadic

#FEF209 #09FEF2 #F209FE

tetradic

#FEF209 #09FE78 #0915FE #FE0990

square

#FEF209 #09FE78 #0915FE #FE0990

split-complementary

#FEF209 #0990FE #7809FE

monochromatic

#8C8501 #C9BF01 #FEF209 #FEF546 #FEF883

Accessibility & contrast

On white

1.17

#FEF209 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.92

#FEF209 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FEF209

17.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FEF209	#FFFFFF	#000000	##000000
##FEF209	1.00	1.17	17.92	17.92
#FFFFFF	1.17	1.00	21.00	21.00
#000000	17.92	21.00	1.00	1.00
##000000	17.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE900

Deuteranopia (green-blind)

#FFF030

Tritanopia (blue-blind)

#FFE1CE

Achromatopsia (no color)

#EDEDED

Design tokens & code

CSS

--color: #fef209;
/* rgb */ color: rgb(254, 242, 9);
/* oklch */ color: oklch(94.0% 0.200 106.0);

Tailwind

colors: {
  custom: {
    50: '#fff572',
    500: '#fef209',
    950: '#000000',
  },
}

SCSS

$custom: #fef209;
$custom-light: #fff572;
$custom-dark: #000000;

JSON

{
  "hex": "#fef209",
  "rgb": {
    "r": 254,
    "g": 242,
    "b": 9
  },
  "hsl": {
    "h": 57.061,
    "s": 99.19,
    "l": 51.569
  },
  "oklch": {
    "l": 0.94043,
    "c": 0.19959,
    "h": 106
  },
  "luminance": 0.84595
}

Semantic roles & 50–950 ramp

primary

#FEF209

secondary

#1A2091

accent

#33FF29

background

#FFFFFB

surface

#FFFEF1

border

#D7D6CB

text

#19170A

muted

#87857D

Preview Lab

Preview with #FEF209

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

Preview Lab → · Contrast checker → · Palette generator →