#ECF57F#ECF57F
#ECF57F is a very light, vivid yellow. Relative luminance 0.847; OKLCH L 93.9% C 0.142 H 112.7°. Best body text is #000000 at 17.93:1 contrast (WCAG AA passes).
Color values
| HEX | #ECF57F |
|---|---|
| RGB | rgb(236, 245, 127) |
| HSL | hsl(65, 86%, 73%) |
| HSV | hsv(65, 48%, 96%) |
| CMYK | cmyk(3.7%, 0%, 48.2%, 3.9%) |
| CIE-LAB | lab(93.74, -19.19, 55.31) |
| CIE-LCH | lch(93.74, 58.54, 109.13°) |
| OKLab | oklab(93.94% -0.0549 0.1313) |
| OKLCH | oklch(93.94% 0.142 112.7) |
| XYZ | xyz(71.0765, 84.6712, 32.6735) |
| Luminance | 0.8467 (WCAG relative) |
| Temperature | warm |
| Family | yellow |
Closest named colors
Yellowish Tan
#FCFC81
ΔE00 2.87
Pale Yellow
#FFFF84
ΔE00 3.26
Faded Yellow
#FEFF7F
ΔE00 3.29
Butter
#FFFF81
ΔE00 3.37
Banana (survey)
#FFFF7E
ΔE00 3.51
Manilla
#FFFA86
ΔE00 3.63
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#ECF57F #887FF5
analogous
#F5C37F #ECF57F #B1F57F
triadic
#ECF57F #7FECF5 #F57FEC
tetradic
#ECF57F #7FF5C3 #887FF5 #F57FB1
square
#ECF57F #7FF5C3 #887FF5 #F57FB1
split-complementary
#ECF57F #7FB1F5 #C37FF5
monochromatic
#D7E812 #E4F146 #ECF57F #F4F9B8 #FBFDE3
Accessibility & contrast
On white
1.17
#ECF57F on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
17.93
#ECF57F on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #ECF57F
17.93:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##ECF57F | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##ECF57F | 1.00 | 1.17 | 17.93 | 17.93 |
| #FFFFFF | 1.17 | 1.00 | 21.00 | 21.00 |
| #000000 | 17.93 | 21.00 | 1.00 | 1.00 |
| ##000000 | 17.93 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#FFEC74
Deuteranopia (green-blind)
#FFEE85
Tritanopia (blue-blind)
#F9E9DA
Achromatopsia (no color)
#EDEDED
Design tokens & code
CSS
--color: #ecf57f; /* rgb */ color: rgb(236, 245, 127); /* oklch */ color: oklch(93.9% 0.142 112.7);
Tailwind
colors: {
custom: {
50: '#f4f8a7',
500: '#ecf57f',
950: '#000000',
},
}SCSS
$custom: #ecf57f; $custom-light: #f4f8a7; $custom-dark: #000000;
JSON
{
"hex": "#ecf57f",
"rgb": {
"r": 236,
"g": 245,
"b": 127
},
"hsl": {
"h": 64.576,
"s": 85.507,
"l": 72.941
},
"oklch": {
"l": 0.93937,
"c": 0.1423,
"h": 112.7
},
"luminance": 0.8467
}Semantic roles & 50–950 ramp
primary
#ECF57F
secondary
#5247D1
accent
#03E214
background
#FFFFFC
surface
#FFFEF6
border
#D7D6D0
text
#171710
muted
#858580