#EFE166#EFE166

#EFE166 is a very light, vivid yellow. Relative luminance 0.732; OKLCH L 89.8% C 0.144 H 102.8°. Best body text is #000000 at 15.63:1 contrast (WCAG AA passes).

Color values

HEX	#EFE166
RGB	rgb(239, 225, 102)
HSL	hsl(54, 81%, 67%)
HSV	hsv(54, 57%, 94%)
CMYK	cmyk(0%, 5.9%, 57.3%, 6.3%)
CIE-LAB	lab(88.53, -10.20, 60.64)
CIE-LCH	lch(88.53, 61.49, 99.55°)
OKLab	oklab(89.76% -0.032 0.1403)
OKLCH	oklch(89.76% 0.144 102.8)
XYZ	xyz(64.9223, 73.1628, 23.2698)
Luminance	0.7316 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFE166 #6674EF

analogous

#EF9D66 #EFE166 #B8EF66

triadic

#EFE166 #66EFE1 #E166EF

tetradic

#EFE166 #66EF9D #6674EF #EF66B8

square

#EFE166 #66EF9D #6674EF #EF66B8

split-complementary

#EFE166 #66B8EF #9D66EF

monochromatic

#C6B415 #E9D62F #EFE166 #F5EC9D #FBF7D5

Accessibility & contrast

On white

1.34

#EFE166 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.63

#EFE166 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFE166

15.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFE166	#FFFFFF	#000000	##000000
##EFE166	1.00	1.34	15.63	15.63
#FFFFFF	1.34	1.00	21.00	21.00
#000000	15.63	21.00	1.00	1.00
##000000	15.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F3DA59

Deuteranopia (green-blind)

#F8E16C

Tritanopia (blue-blind)

#FFD3C6

Achromatopsia (no color)

#DEDEDE

Design tokens & code

CSS

--color: #efe166;
/* rgb */ color: rgb(239, 225, 102);
/* oklch */ color: oklch(89.8% 0.144 102.8);

Tailwind

colors: {
  custom: {
    50: '#f7ea96',
    500: '#efe166',
    950: '#000000',
  },
}

SCSS

$custom: #efe166;
$custom-light: #f7ea96;
$custom-dark: #000000;

JSON

{
  "hex": "#efe166",
  "rgb": {
    "r": 239,
    "g": 225,
    "b": 102
  },
  "hsl": {
    "h": 53.869,
    "s": 81.065,
    "l": 66.863
  },
  "oklch": {
    "l": 0.89757,
    "c": 0.14391,
    "h": 102.8
  },
  "luminance": 0.7316
}

Semantic roles & 50–950 ramp

primary

#EFE166

secondary

#3644C3

accent

#1EDD08

background

#FFFEFC

surface

#FFFCF5

border

#D7D5CF

text

#18160E

muted

#86847F

Preview Lab

Preview with #EFE166

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

Preview Lab → · Contrast checker → · Palette generator →