#EFDF66#EFDF66

#EFDF66 is a very light, vivid yellow. Relative luminance 0.721; OKLCH L 89.3% C 0.142 H 101.8°. Best body text is #000000 at 15.42:1 contrast (WCAG AA passes).

Color values

HEX	#EFDF66
RGB	rgb(239, 223, 102)
HSL	hsl(53, 81%, 67%)
HSV	hsv(53, 57%, 94%)
CMYK	cmyk(0%, 6.7%, 57.3%, 6.3%)
CIE-LAB	lab(88.01, -9.20, 60.06)
CIE-LCH	lch(88.01, 60.76, 98.71°)
OKLab	oklab(89.35% -0.0291 0.1391)
OKLCH	oklch(89.35% 0.142 101.8)
XYZ	xyz(64.3848, 72.0878, 23.0907)
Luminance	0.7208 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFDF66 #6676EF

analogous

#EF9B66 #EFDF66 #BAEF66

triadic

#EFDF66 #66EFDF #DF66EF

tetradic

#EFDF66 #66EF9B #6676EF #EF66BA

square

#EFDF66 #66EF9B #6676EF #EF66BA

split-complementary

#EFDF66 #66BAEF #9B66EF

monochromatic

#C6B115 #E9D32F #EFDF66 #F5EB9D #FBF6D5

Accessibility & contrast

On white

1.36

#EFDF66 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.42

#EFDF66 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFDF66

15.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFDF66	#FFFFFF	#000000	##000000
##EFDF66	1.00	1.36	15.42	15.42
#FFFFFF	1.36	1.00	21.00	21.00
#000000	15.42	21.00	1.00	1.00
##000000	15.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F1D959

Deuteranopia (green-blind)

#F6E06C

Tritanopia (blue-blind)

#FFD1C4

Achromatopsia (no color)

#DDDDDD

Design tokens & code

CSS

--color: #efdf66;
/* rgb */ color: rgb(239, 223, 102);
/* oklch */ color: oklch(89.3% 0.142 101.8);

Tailwind

colors: {
  custom: {
    50: '#f7e895',
    500: '#efdf66',
    950: '#000000',
  },
}

SCSS

$custom: #efdf66;
$custom-light: #f7e895;
$custom-dark: #000000;

JSON

{
  "hex": "#efdf66",
  "rgb": {
    "r": 239,
    "g": 223,
    "b": 102
  },
  "hsl": {
    "h": 52.993,
    "s": 81.065,
    "l": 66.863
  },
  "oklch": {
    "l": 0.89348,
    "c": 0.14209,
    "h": 101.8
  },
  "luminance": 0.72085
}

Semantic roles & 50–950 ramp

primary

#EFDF66

secondary

#3646C3

accent

#21DD08

background

#FFFEFC

surface

#FFFCF5

border

#D7D5CF

text

#18160E

muted

#86847F

Preview Lab

Preview with #EFDF66

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

Preview Lab → · Contrast checker → · Palette generator →