#EFEC66#EFEC66

#EFEC66 is a very light, vivid yellow. Relative luminance 0.793; OKLCH L 92.0% C 0.155 H 107.9°. Best body text is #000000 at 16.86:1 contrast (WCAG AA passes).

Color values

HEX	#EFEC66
RGB	rgb(239, 236, 102)
HSL	hsl(59, 81%, 67%)
HSV	hsv(59, 57%, 94%)
CMYK	cmyk(0%, 1.3%, 57.3%, 6.3%)
CIE-LAB	lab(91.37, -15.63, 63.82)
CIE-LCH	lch(91.37, 65.71, 103.76°)
OKLab	oklab(92.02% -0.0475 0.1471)
OKLCH	oklch(92.02% 0.155 107.9)
XYZ	xyz(67.9924, 79.3029, 24.2932)
Luminance	0.7930 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFEC66 #6669EF

analogous

#EFA866 #EFEC66 #AEEF66

triadic

#EFEC66 #66EFEC #EC66EF

tetradic

#EFEC66 #66EFA8 #6669EF #EF66AE

square

#EFEC66 #66EFA8 #6669EF #EF66AE

split-complementary

#EFEC66 #66AEEF #A866EF

monochromatic

#C6C215 #E9E52F #EFEC66 #F5F39D #FBFAD5

Accessibility & contrast

On white

1.25

#EFEC66 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

16.86

#EFEC66 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFEC66

16.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFEC66	#FFFFFF	#000000	##000000
##EFEC66	1.00	1.25	16.86	16.86
#FFFFFF	1.25	1.00	21.00	21.00
#000000	16.86	21.00	1.00	1.00
##000000	16.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FEE357

Deuteranopia (green-blind)

#FFE96E

Tritanopia (blue-blind)

#FFDECF

Achromatopsia (no color)

#E6E6E6

Design tokens & code

CSS

--color: #efec66;
/* rgb */ color: rgb(239, 236, 102);
/* oklch */ color: oklch(92.0% 0.155 107.9);

Tailwind

colors: {
  custom: {
    50: '#f7f196',
    500: '#efec66',
    950: '#000000',
  },
}

SCSS

$custom: #efec66;
$custom-light: #f7f196;
$custom-dark: #000000;

JSON

{
  "hex": "#efec66",
  "rgb": {
    "r": 239,
    "g": 236,
    "b": 102
  },
  "hsl": {
    "h": 58.686,
    "s": 81.065,
    "l": 66.863
  },
  "oklch": {
    "l": 0.92021,
    "c": 0.15457,
    "h": 107.9
  },
  "luminance": 0.79301
}

Semantic roles & 50–950 ramp

primary

#EFEC66

secondary

#3639C3

accent

#0DDD08

background

#FFFFFC

surface

#FFFEF5

border

#D7D6CF

text

#18160E

muted

#86857F

Preview Lab

Preview with #EFEC66

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

Preview Lab → · Contrast checker → · Palette generator →