#EFFF68#EFFF68

#EFFF68 is a very light, vivid yellow. Relative luminance 0.909; OKLCH L 96.0% C 0.173 H 114.8°. Best body text is #000000 at 19.17:1 contrast (WCAG AA passes).

Color values

HEX	#EFFF68
RGB	rgb(239, 255, 104)
HSL	hsl(66, 100%, 70%)
HSV	hsv(66, 59%, 100%)
CMYK	cmyk(6.3%, 0%, 59.2%, 0%)
CIE-LAB	lab(96.36, -24.62, 68.47)
CIE-LCH	lch(96.36, 72.76, 109.78°)
OKLab	oklab(96.01% -0.0727 0.1572)
OKLCH	oklch(96.01% 0.173 114.8)
XYZ	xyz(73.8569, 90.8714, 26.7432)
Luminance	0.9087 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFFF68 #7868FF

analogous

#FFC468 #EFFF68 #A3FF68

triadic

#EFFF68 #68EFFF #FF68EF

tetradic

#EFFF68 #68FFC4 #7868FF #FF68A3

square

#EFFF68 #68FFC4 #7868FF #FF68A3

split-complementary

#EFFF68 #68A3FF #C468FF

monochromatic

#D4ED00 #E9FF2B #EFFF68 #F5FFA5 #FCFFE0

Accessibility & contrast

On white

1.10

#EFFF68 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

19.17

#EFFF68 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFFF68

19.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFFF68	#FFFFFF	#000000	##000000
##EFFF68	1.00	1.10	19.17	19.17
#FFFFFF	1.10	1.00	21.00	21.00
#000000	19.17	21.00	1.00	1.00
##000000	19.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FFF356

Deuteranopia (green-blind)

#FFF672

Tritanopia (blue-blind)

#FDF1DF

Achromatopsia (no color)

#F4F4F4

Design tokens & code

CSS

--color: #efff68;
/* rgb */ color: rgb(239, 255, 104);
/* oklch */ color: oklch(96.0% 0.173 114.8);

Tailwind

colors: {
  custom: {
    50: '#f7ff99',
    500: '#efff68',
    950: '#000000',
  },
}

SCSS

$custom: #efff68;
$custom-light: #f7ff99;
$custom-dark: #000000;

JSON

{
  "hex": "#efff68",
  "rgb": {
    "r": 239,
    "g": 255,
    "b": 104
  },
  "hsl": {
    "h": 66.358,
    "s": 100,
    "l": 70.392
  },
  "oklch": {
    "l": 0.9601,
    "c": 0.17321,
    "h": 114.8
  },
  "luminance": 0.9087
}

Semantic roles & 50–950 ramp

primary

#EFFF68

secondary

#4331DB

accent

#00E618

background

#FFFFFC

surface

#FFFFF5

border

#D7D7CF

text

#18170E

muted

#86857F

Preview Lab

Preview with #EFFF68

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

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