#ECFF5C#ECFF5C
#ECFF5C is a very light, vivid yellow. Relative luminance 0.901; OKLCH L 95.7% C 0.183 H 115.6°. Best body text is #000000 at 19.03:1 contrast (WCAG AA passes).
Color values
| HEX | #ECFF5C |
|---|---|
| RGB | rgb(236, 255, 92) |
| HSL | hsl(67, 100%, 68%) |
| HSV | hsv(67, 64%, 100%) |
| CMYK | cmyk(7.5%, 0%, 63.9%, 0%) |
| CIE-LAB | lab(96.05, -26.58, 72.86) |
| CIE-LCH | lch(96.05, 77.56, 110.04°) |
| OKLab | oklab(95.68% -0.0791 0.165) |
| OKLCH | oklch(95.68% 0.183 115.6) |
| XYZ | xyz(72.2855, 90.1266, 23.7114) |
| Luminance | 0.9013 (WCAG relative) |
| Temperature | warm |
| Family | yellow |
Closest named colors
Canary
#FDFF63
ΔE00 3.48
Banana Yellow
#FAFE4B
ΔE00 3.70
Lemon (survey)
#FDFF52
ΔE00 3.89
Pastel Yellow
#FFFE71
ΔE00 4.27
Off Yellow
#F1F33F
ΔE00 4.56
Butter Yellow
#FFFD74
ΔE00 4.59
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#ECFF5C #6F5CFF
analogous
#FFC05C #ECFF5C #9AFF5C
triadic
#ECFF5C #5CECFF #FF5CEC
tetradic
#ECFF5C #5CFFC0 #6F5CFF #FF5C9A
square
#ECFF5C #5CFFC0 #6F5CFF #FF5C9A
split-complementary
#ECFF5C #5C9AFF #C05CFF
monochromatic
#C6E100 #E5FF1F #ECFF5C #F3FF99 #FAFFD6
Accessibility & contrast
On white
1.10
#ECFF5C on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
19.03
#ECFF5C on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #ECFF5C
19.03:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##ECFF5C | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##ECFF5C | 1.00 | 1.10 | 19.03 | 19.03 |
| #FFFFFF | 1.10 | 1.00 | 21.00 | 21.00 |
| #000000 | 19.03 | 21.00 | 1.00 | 1.00 |
| ##000000 | 19.03 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#FFF346
Deuteranopia (green-blind)
#FFF567
Tritanopia (blue-blind)
#FAF1DE
Achromatopsia (no color)
#F4F4F4
Design tokens & code
CSS
--color: #ecff5c; /* rgb */ color: rgb(236, 255, 92); /* oklch */ color: oklch(95.7% 0.183 115.6);
Tailwind
colors: {
custom: {
50: '#f5ff92',
500: '#ecff5c',
950: '#000000',
},
}SCSS
$custom: #ecff5c; $custom-light: #f5ff92; $custom-dark: #000000;
JSON
{
"hex": "#ecff5c",
"rgb": {
"r": 236,
"g": 255,
"b": 92
},
"hsl": {
"h": 66.994,
"s": 100,
"l": 68.039
},
"oklch": {
"l": 0.9568,
"c": 0.183,
"h": 115.6
},
"luminance": 0.90126
}Semantic roles & 50–950 ramp
primary
#ECFF5C
secondary
#3B26D9
accent
#00E61B
background
#FFFFFC
surface
#FFFFF4
border
#D7D7CE
text
#18170D
muted
#86857F