#EFF64F#EFF64F
#EFF64F is a very light, vivid yellow. Relative luminance 0.848; OKLCH L 93.9% C 0.181 H 111.8°. Best body text is #000000 at 17.97:1 contrast (WCAG AA passes).
Color values
| HEX | #EFF64F |
|---|---|
| RGB | rgb(239, 246, 79) |
| HSL | hsl(63, 90%, 64%) |
| HSV | hsv(63, 68%, 96%) |
| CMYK | cmyk(2.8%, 0%, 67.9%, 3.5%) |
| CIE-LAB | lab(93.81, -21.86, 75.48) |
| CIE-LCH | lch(93.81, 78.58, 106.15°) |
| OKLab | oklab(93.91% -0.0673 0.1685) |
| OKLCH | oklch(93.91% 0.181 111.8) |
| XYZ | xyz(69.9658, 84.8285, 20.0835) |
| Luminance | 0.8483 (WCAG relative) |
| Temperature | warm |
| Family | yellow |
Closest named colors
Off Yellow
#F1F33F
ΔE00 1.69
Banana Yellow
#FAFE4B
ΔE00 2.12
Lemon (survey)
#FDFF52
ΔE00 2.36
Canary
#FDFF63
ΔE00 2.41
Canary Yellow
#FFFE40
ΔE00 3.24
Lemon Yellow
#FDFF38
ΔE00 3.30
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#EFF64F #564FF6
analogous
#F6A94F #EFF64F #9BF64F
triadic
#EFF64F #4FEFF6 #F64FEF
tetradic
#EFF64F #4FF6A9 #564FF6 #F64F9B
square
#EFF64F #4FF6A9 #564FF6 #F64F9B
split-complementary
#EFF64F #4F9BF6 #A94FF6
monochromatic
#B9C10A #EAF315 #EFF64F #F4F989 #FAFCC3
Accessibility & contrast
On white
1.17
#EFF64F on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
17.97
#EFF64F on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #EFF64F
17.97:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##EFF64F | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##EFF64F | 1.00 | 1.17 | 17.97 | 17.97 |
| #FFFFFF | 1.17 | 1.00 | 21.00 | 21.00 |
| #000000 | 17.97 | 21.00 | 1.00 | 1.00 |
| ##000000 | 17.97 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#FFEB34
Deuteranopia (green-blind)
#FFEF5B
Tritanopia (blue-blind)
#FFE7D5
Achromatopsia (no color)
#EDEDED
Design tokens & code
CSS
--color: #eff64f; /* rgb */ color: rgb(239, 246, 79); /* oklch */ color: oklch(93.9% 0.181 111.8);
Tailwind
colors: {
custom: {
50: '#f8f98a',
500: '#eff64f',
950: '#000000',
},
}SCSS
$custom: #eff64f; $custom-light: #f8f98a; $custom-dark: #000000;
JSON
{
"hex": "#eff64f",
"rgb": {
"r": 239,
"g": 246,
"b": 79
},
"hsl": {
"h": 62.515,
"s": 90.27,
"l": 63.725
},
"oklch": {
"l": 0.93912,
"c": 0.18144,
"h": 111.8
},
"luminance": 0.84827
}Semantic roles & 50–950 ramp
primary
#EFF64F
secondary
#312BBE
accent
#00E60A
background
#FFFFFC
surface
#FFFEF4
border
#D7D6CE
text
#18170C
muted
#86857F