#ECEF5B#ECEF5B
#ECEF5B is a very light, vivid yellow. Relative luminance 0.803; OKLCH L 92.3% C 0.167 H 110.4°. Best body text is #000000 at 17.06:1 contrast (WCAG AA passes).
Color values
| HEX | #ECEF5B |
|---|---|
| RGB | rgb(236, 239, 91) |
| HSL | hsl(61, 82%, 65%) |
| HSV | hsv(61, 62%, 94%) |
| CMYK | cmyk(1.3%, 0%, 61.9%, 6.3%) |
| CIE-LAB | lab(91.83, -19.02, 68.82) |
| CIE-LCH | lch(91.83, 71.40, 105.45°) |
| OKLab | oklab(92.3% -0.058 0.1563) |
| OKLCH | oklch(92.3% 0.167 110.4) |
| XYZ | xyz(67.3489, 80.3229, 21.8516) |
| Luminance | 0.8032 (WCAG relative) |
| Temperature | warm |
| Family | yellow |
Closest named colors
Off Yellow
#F1F33F
ΔE00 2.78
Canary
#FDFF63
ΔE00 3.40
Pastel Yellow
#FFFE71
ΔE00 3.45
Butter Yellow
#FFFD74
ΔE00 3.47
Straw
#FCF679
ΔE00 3.54
Yellowish
#FAEE66
ΔE00 3.55
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#ECEF5B #5E5BEF
analogous
#EFA85B #ECEF5B #A2EF5B
triadic
#ECEF5B #5BECEF #EF5BEC
tetradic
#ECEF5B #5BEFA8 #5E5BEF #EF5BA2
square
#ECEF5B #5BEFA8 #5E5BEF #EF5BA2
split-complementary
#ECEF5B #5BA2EF #A85BEF
monochromatic
#BABD12 #E6EA23 #ECEF5B #F2F493 #F9FACB
Accessibility & contrast
On white
1.23
#ECEF5B on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
17.06
#ECEF5B on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #ECEF5B
17.06:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##ECEF5B | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##ECEF5B | 1.00 | 1.23 | 17.06 | 17.06 |
| #FFFFFF | 1.23 | 1.00 | 21.00 | 21.00 |
| #000000 | 17.06 | 21.00 | 1.00 | 1.00 |
| ##000000 | 17.06 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#FFE548
Deuteranopia (green-blind)
#FFEA64
Tritanopia (blue-blind)
#FBE1D0
Achromatopsia (no color)
#E8E8E8
Design tokens & code
CSS
--color: #ecef5b; /* rgb */ color: rgb(236, 239, 91); /* oklch */ color: oklch(92.3% 0.167 110.4);
Tailwind
colors: {
custom: {
50: '#f5f490',
500: '#ecef5b',
950: '#000000',
},
}SCSS
$custom: #ecef5b; $custom-light: #f5f490; $custom-dark: #000000;
JSON
{
"hex": "#ecef5b",
"rgb": {
"r": 236,
"g": 239,
"b": 91
},
"hsl": {
"h": 61.216,
"s": 82.222,
"l": 64.706
},
"oklch": {
"l": 0.923,
"c": 0.16676,
"h": 110.4
},
"luminance": 0.80321
}Semantic roles & 50–950 ramp
primary
#ECEF5B
secondary
#3533BC
accent
#07DF0B
background
#FFFFFC
surface
#FFFEF4
border
#D7D6CE
text
#18170D
muted
#86857F