#EFF966#EFF966

#EFF966 is a very light, vivid yellow. Relative luminance 0.871; OKLCH L 94.7% C 0.168 H 112.8°. Best body text is #000000 at 18.41:1 contrast (WCAG AA passes).

Color values

HEX	#EFF966
RGB	rgb(239, 249, 102)
HSL	hsl(64, 92%, 69%)
HSV	hsv(64, 59%, 98%)
CMYK	cmyk(4%, 0%, 59%, 2.4%)
CIE-LAB	lab(94.76, -21.91, 67.56)
CIE-LCH	lch(94.76, 71.02, 107.97°)
OKLab	oklab(94.73% -0.0652 0.155)
OKLCH	oklch(94.73% 0.168 112.8)
XYZ	xyz(71.8723, 87.0628, 25.5865)
Luminance	0.8706 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF966 #7066F9

analogous

#F9BA66 #EFF966 #A6F966

triadic

#EFF966 #66EFF9 #F966EF

tetradic

#EFF966 #66F9BA #7066F9 #F966A6

square

#EFF966 #66F9BA #7066F9 #F966A6

split-complementary

#EFF966 #66A6F9 #BA66F9

monochromatic

#CEDC09 #E9F72B #EFF966 #F5FBA1 #FBFEDC

Accessibility & contrast

On white

1.14

#EFF966 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

18.41

#EFF966 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF966

18.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF966	#FFFFFF	#000000	##000000
##EFF966	1.00	1.14	18.41	18.41
#FFFFFF	1.14	1.00	21.00	21.00
#000000	18.41	21.00	1.00	1.00
##000000	18.41	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFEE55

Deuteranopia (green-blind)

#FFF26F

Tritanopia (blue-blind)

#FEEBDA

Achromatopsia (no color)

#F0F0F0

Design tokens & code

CSS

--color: #eff966;
/* rgb */ color: rgb(239, 249, 102);
/* oklch */ color: oklch(94.7% 0.168 112.8);

Tailwind

colors: {
  custom: {
    50: '#f7fb97',
    500: '#eff966',
    950: '#000000',
  },
}

SCSS

$custom: #eff966;
$custom-light: #f7fb97;
$custom-dark: #000000;

JSON

{
  "hex": "#eff966",
  "rgb": {
    "r": 239,
    "g": 249,
    "b": 102
  },
  "hsl": {
    "h": 64.082,
    "s": 92.453,
    "l": 68.824
  },
  "oklch": {
    "l": 0.9473,
    "c": 0.16821,
    "h": 112.8
  },
  "luminance": 0.87061
}

Semantic roles & 50–950 ramp

primary

#EFF966

secondary

#3B30D3

accent

#00E610

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#18170E

muted

#86857F

Preview Lab

Preview with #EFF966

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

Preview Lab → · Contrast checker → · Palette generator →