#EFFE58#EFFE58
#EFFE58 is a very light, vivid yellow. Relative luminance 0.899; OKLCH L 95.7% C 0.184 H 114.3°. Best body text is #000000 at 18.99:1 contrast (WCAG AA passes).
Color values
| HEX | #EFFE58 |
|---|---|
| RGB | rgb(239, 254, 88) |
| HSL | hsl(65, 99%, 67%) |
| HSV | hsv(65, 65%, 100%) |
| CMYK | cmyk(5.9%, 0%, 65.4%, 0.4%) |
| CIE-LAB | lab(95.97, -25.16, 74.37) |
| CIE-LCH | lch(95.97, 78.51, 108.69°) |
| OKLab | oklab(95.66% -0.0757 0.1675) |
| OKLCH | oklch(95.66% 0.184 114.3) |
| XYZ | xyz(72.8018, 89.9402, 22.7557) |
| Luminance | 0.8994 (WCAG relative) |
| Temperature | warm |
| Family | yellow |
Closest named colors
Canary
#FDFF63
ΔE00 2.73
Banana Yellow
#FAFE4B
ΔE00 2.79
Lemon (survey)
#FDFF52
ΔE00 2.99
Off Yellow
#F1F33F
ΔE00 3.70
Pastel Yellow
#FFFE71
ΔE00 3.71
Lemon Yellow
#FDFF38
ΔE00 4.06
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#EFFE58 #6758FE
analogous
#FEBA58 #EFFE58 #9CFE58
triadic
#EFFE58 #58EFFE #FE58EF
tetradic
#EFFE58 #58FEBA #6758FE #FE589C
square
#EFFE58 #58FEBA #6758FE #FE589C
split-complementary
#EFFE58 #589CFE #BA58FE
monochromatic
#C7DA01 #E9FE1B #EFFE58 #F5FE95 #FBFFD2
Accessibility & contrast
On white
1.11
#EFFE58 on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
18.99
#EFFE58 on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #EFFE58
18.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##EFFE58 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##EFFE58 | 1.00 | 1.11 | 18.99 | 18.99 |
| #FFFFFF | 1.11 | 1.00 | 21.00 | 21.00 |
| #000000 | 18.99 | 21.00 | 1.00 | 1.00 |
| ##000000 | 18.99 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#FFF240
Deuteranopia (green-blind)
#FFF564
Tritanopia (blue-blind)
#FEF0DC
Achromatopsia (no color)
#F3F3F3
Design tokens & code
CSS
--color: #effe58; /* rgb */ color: rgb(239, 254, 88); /* oklch */ color: oklch(95.7% 0.184 114.3);
Tailwind
colors: {
custom: {
50: '#f8fe8f',
500: '#effe58',
950: '#000000',
},
}SCSS
$custom: #effe58; $custom-light: #f8fe8f; $custom-dark: #000000;
JSON
{
"hex": "#effe58",
"rgb": {
"r": 239,
"g": 254,
"b": 88
},
"hsl": {
"h": 65.422,
"s": 98.81,
"l": 67.059
},
"oklch": {
"l": 0.95662,
"c": 0.18384,
"h": 114.3
},
"luminance": 0.89939
}Semantic roles & 50–950 ramp
primary
#EFFE58
secondary
#3627D4
accent
#00E615
background
#FFFFFC
surface
#FFFFF4
border
#D7D7CE
text
#18170D
muted
#86857F