#FFEF49#FFEF49

#FFEF49 is a very light, vivid yellow. Relative luminance 0.835; OKLCH L 93.7% C 0.176 H 103.7°. Best body text is #000000 at 17.69:1 contrast (WCAG AA passes).

Color values

HEX	#FFEF49
RGB	rgb(255, 239, 73)
HSL	hsl(55, 100%, 64%)
HSV	hsv(55, 71%, 100%)
CMYK	cmyk(0%, 6.3%, 71.4%, 0%)
CIE-LAB	lab(93.22, -12.24, 77.44)
CIE-LCH	lch(93.22, 78.40, 98.98°)
OKLab	oklab(93.74% -0.0417 0.1711)
OKLCH	oklch(93.74% 0.176 103.7)
XYZ	xyz(73.3123, 83.4770, 18.5530)
Luminance	0.8347 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FFEF49 #4959FF

analogous

#FF9449 #FFEF49 #B4FF49

triadic

#FFEF49 #49FFEF #EF49FF

tetradic

#FFEF49 #49FF94 #4959FF #FF49B4

square

#FFEF49 #49FF94 #4959FF #FF49B4

split-complementary

#FFEF49 #49B4FF #9449FF

monochromatic

#CEBC00 #FFEA0C #FFEF49 #FFF486 #FFFAC3

Accessibility & contrast

On white

1.19

#FFEF49 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.69

#FFEF49 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FFEF49

17.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FFEF49	#FFFFFF	#000000	##000000
##FFEF49	1.00	1.19	17.69	17.69
#FFFFFF	1.19	1.00	21.00	21.00
#000000	17.69	21.00	1.00	1.00
##000000	17.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE72C

Deuteranopia (green-blind)

#FFEF55

Tritanopia (blue-blind)

#FFDFCF

Achromatopsia (no color)

#EBEBEB

Design tokens & code

CSS

--color: #ffef49;
/* rgb */ color: rgb(255, 239, 73);
/* oklch */ color: oklch(93.7% 0.176 103.7);

Tailwind

colors: {
  custom: {
    50: '#fff386',
    500: '#ffef49',
    950: '#000000',
  },
}

SCSS

$custom: #ffef49;
$custom-light: #fff386;
$custom-dark: #000000;

JSON

{
  "hex": "#ffef49",
  "rgb": {
    "r": 255,
    "g": 239,
    "b": 73
  },
  "hsl": {
    "h": 54.725,
    "s": 100,
    "l": 64.314
  },
  "oklch": {
    "l": 0.93739,
    "c": 0.17614,
    "h": 103.7
  },
  "luminance": 0.83474
}

Semantic roles & 50–950 ramp

primary

#FFEF49

secondary

#2332C9

accent

#14E600

background

#FFFFFC

surface

#FFFEF4

border

#D7D6CE

text

#19170C

muted

#87857F

Preview Lab

Preview with #FFEF49

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

Preview Lab → · Contrast checker → · Palette generator →