#ECFF54#ECFF54
#ECFF54 is a very light, vivid yellow. Relative luminance 0.900; OKLCH L 95.6% C 0.188 H 115.5°. Best body text is #000000 at 19.00:1 contrast (WCAG AA passes).
Color values
| HEX | #ECFF54 |
|---|---|
| RGB | rgb(236, 255, 84) |
| HSL | hsl(67, 100%, 66%) |
| HSV | hsv(67, 67%, 100%) |
| CMYK | cmyk(7.5%, 0%, 67.1%, 0%) |
| CIE-LAB | lab(95.99, -27.04, 75.80) |
| CIE-LCH | lch(95.99, 80.47, 109.63°) |
| OKLab | oklab(95.62% -0.0812 0.17) |
| OKLCH | oklch(95.62% 0.188 115.5) |
| XYZ | xyz(71.9541, 89.9941, 21.9659) |
| Luminance | 0.8999 (WCAG relative) |
| Temperature | warm |
| Family | yellow |
Closest named colors
Banana Yellow
#FAFE4B
ΔE00 3.32
Canary
#FDFF63
ΔE00 3.46
Lemon (survey)
#FDFF52
ΔE00 3.60
Off Yellow
#F1F33F
ΔE00 4.22
Pastel Yellow
#FFFE71
ΔE00 4.46
Lemon Yellow
#FDFF38
ΔE00 4.46
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#ECFF54 #6754FF
analogous
#FFBD54 #ECFF54 #97FF54
triadic
#ECFF54 #54ECFF #FF54EC
tetradic
#ECFF54 #54FFBD #6754FF #FF5497
square
#ECFF54 #54FFBD #6754FF #FF5497
split-complementary
#ECFF54 #5497FF #BD54FF
monochromatic
#C1D900 #E5FF17 #ECFF54 #F3FF91 #FAFFCE
Accessibility & contrast
On white
1.11
#ECFF54 on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
19.00
#ECFF54 on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #ECFF54
19.00:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##ECFF54 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##ECFF54 | 1.00 | 1.11 | 19.00 | 19.00 |
| #FFFFFF | 1.11 | 1.00 | 21.00 | 21.00 |
| #000000 | 19.00 | 21.00 | 1.00 | 1.00 |
| ##000000 | 19.00 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#FFF23A
Deuteranopia (green-blind)
#FFF561
Tritanopia (blue-blind)
#FBF1DD
Achromatopsia (no color)
#F3F3F3
Design tokens & code
CSS
--color: #ecff54; /* rgb */ color: rgb(236, 255, 84); /* oklch */ color: oklch(95.6% 0.188 115.5);
Tailwind
colors: {
custom: {
50: '#f6ff8d',
500: '#ecff54',
950: '#000000',
},
}SCSS
$custom: #ecff54; $custom-light: #f6ff8d; $custom-dark: #000000;
JSON
{
"hex": "#ecff54",
"rgb": {
"r": 236,
"g": 255,
"b": 84
},
"hsl": {
"h": 66.667,
"s": 100,
"l": 66.471
},
"oklch": {
"l": 0.95618,
"c": 0.1884,
"h": 115.5
},
"luminance": 0.89993
}Semantic roles & 50–950 ramp
primary
#ECFF54
secondary
#3825D2
accent
#00E61A
background
#FFFFFC
surface
#FFFFF4
border
#D7D7CE
text
#18170D
muted
#86857F