#EFEF83#EFEF83

#EFEF83 is a very light, vivid yellow. Relative luminance 0.817; OKLCH L 93.0% C 0.131 H 108.7°. Best body text is #000000 at 17.34:1 contrast (WCAG AA passes).

Color values

HEX	#EFEF83
RGB	rgb(239, 239, 131)
HSL	hsl(60, 77%, 73%)
HSV	hsv(60, 45%, 94%)
CMYK	cmyk(0%, 0%, 45.2%, 6.3%)
CIE-LAB	lab(92.45, -14.73, 51.94)
CIE-LCH	lch(92.45, 53.98, 105.84°)
OKLab	oklab(92.98% -0.042 0.1241)
OKLCH	oklch(92.98% 0.131 108.7)
XYZ	xyz(70.5612, 81.7240, 33.5256)
Luminance	0.8172 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFEF83 #8383EF

analogous

#EFB983 #EFEF83 #B9EF83

triadic

#EFEF83 #83EFEF #EF83EF

tetradic

#EFEF83 #83EFB9 #8383EF #EF83B9

square

#EFEF83 #83EFB9 #8383EF #EF83B9

split-complementary

#EFEF83 #83B9EF #B983EF

monochromatic

#DBDB1C #E8E84D #EFEF83 #F6F6B9 #FCFCE4

Accessibility & contrast

On white

1.21

#EFEF83 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.34

#EFEF83 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFEF83

17.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFEF83	#FFFFFF	#000000	##000000
##EFEF83	1.00	1.21	17.34	17.34
#FFFFFF	1.21	1.00	21.00	21.00
#000000	17.34	21.00	1.00	1.00
##000000	17.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FEE77A

Deuteranopia (green-blind)

#FFEB88

Tritanopia (blue-blind)

#FCE3D6

Achromatopsia (no color)

#E9E9E9

Design tokens & code

CSS

--color: #efef83;
/* rgb */ color: rgb(239, 239, 131);
/* oklch */ color: oklch(93.0% 0.131 108.7);

Tailwind

colors: {
  custom: {
    50: '#f6f4a9',
    500: '#efef83',
    950: '#000000',
  },
}

SCSS

$custom: #efef83;
$custom-light: #f6f4a9;
$custom-dark: #000000;

JSON

{
  "hex": "#efef83",
  "rgb": {
    "r": 239,
    "g": 239,
    "b": 131
  },
  "hsl": {
    "h": 60,
    "s": 77.143,
    "l": 72.549
  },
  "oklch": {
    "l": 0.92981,
    "c": 0.13104,
    "h": 108.7
  },
  "luminance": 0.81722
}

Semantic roles & 50–950 ramp

primary

#EFEF83

secondary

#4D4DCA

accent

#0CD90C

background

#FFFFFD

surface

#FFFEF7

border

#D7D6D0

text

#171710

muted

#858581

Preview Lab

Preview with #EFEF83

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

Preview Lab → · Contrast checker → · Palette generator →