#FFEF41#FFEF41

#FFEF41 is a very light, vivid yellow. Relative luminance 0.834; OKLCH L 93.7% C 0.181 H 103.9°. Best body text is #000000 at 17.68:1 contrast (WCAG AA passes).

Color values

HEX	#FFEF41
RGB	rgb(255, 239, 65)
HSL	hsl(55, 100%, 63%)
HSV	hsv(55, 75%, 100%)
CMYK	cmyk(0%, 6.3%, 74.5%, 0%)
CIE-LAB	lab(93.18, -12.57, 80.03)
CIE-LCH	lch(93.18, 81.01, 98.93°)
OKLab	oklab(93.69% -0.0434 0.1752)
OKLCH	oklch(93.69% 0.181 103.9)
XYZ	xyz(73.0639, 83.3777, 17.2449)
Luminance	0.8337 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FFEF41 #4151FF

analogous

#FF9041 #FFEF41 #B0FF41

triadic

#FFEF41 #41FFEF #EF41FF

tetradic

#FFEF41 #41FF90 #4151FF #FF41B0

square

#FFEF41 #41FF90 #4151FF #FF41B0

split-complementary

#FFEF41 #41B0FF #9041FF

monochromatic

#C6B500 #FFEA04 #FFEF41 #FFF47E #FFF9BB

Accessibility & contrast

On white

1.19

#FFEF41 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.68

#FFEF41 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FFEF41

17.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FFEF41	#FFFFFF	#000000	##000000
##FFEF41	1.00	1.19	17.68	17.68
#FFFFFF	1.19	1.00	21.00	21.00
#000000	17.68	21.00	1.00	1.00
##000000	17.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFE71A

Deuteranopia (green-blind)

#FFEF4E

Tritanopia (blue-blind)

#FFDECE

Achromatopsia (no color)

#EBEBEB

Design tokens & code

CSS

--color: #ffef41;
/* rgb */ color: rgb(255, 239, 65);
/* oklch */ color: oklch(93.7% 0.181 103.9);

Tailwind

colors: {
  custom: {
    50: '#fff382',
    500: '#ffef41',
    950: '#000000',
  },
}

SCSS

$custom: #ffef41;
$custom-light: #fff382;
$custom-dark: #000000;

JSON

{
  "hex": "#ffef41",
  "rgb": {
    "r": 255,
    "g": 239,
    "b": 65
  },
  "hsl": {
    "h": 54.947,
    "s": 100,
    "l": 62.745
  },
  "oklch": {
    "l": 0.9369,
    "c": 0.18051,
    "h": 103.9
  },
  "luminance": 0.83375
}

Semantic roles & 50–950 ramp

primary

#FFEF41

secondary

#2230C2

accent

#13E600

background

#FFFFFB

surface

#FFFEF2

border

#D7D6CC

text

#19170B

muted

#87857E

Preview Lab

Preview with #FFEF41

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

Preview Lab → · Contrast checker → · Palette generator →