#F3EC63#F3EC63
#F3EC63 is a very light, vivid yellow. Relative luminance 0.799; OKLCH L 92.3% C 0.157 H 106.3°. Best body text is #000000 at 16.99:1 contrast (WCAG AA passes).
Color values
| HEX | #F3EC63 |
|---|---|
| RGB | rgb(243, 236, 99) |
| HSL | hsl(57, 86%, 67%) |
| HSV | hsv(57, 59%, 95%) |
| CMYK | cmyk(0%, 2.9%, 59.3%, 4.7%) |
| CIE-LAB | lab(91.66, -14.23, 65.51) |
| CIE-LCH | lch(91.66, 67.03, 102.25°) |
| OKLab | oklab(92.32% -0.044 0.1502) |
| OKLCH | oklch(92.32% 0.157 106.3) |
| XYZ | xyz(69.2120, 79.9487, 23.5878) |
| Luminance | 0.7995 (WCAG relative) |
| Temperature | warm |
| Family | yellow |
Closest named colors
Yellowish
#FAEE66
ΔE00 1.35
Sandy Yellow
#FDEE73
ΔE00 2.53
Straw
#FCF679
ΔE00 2.59
Butter Yellow
#FFFD74
ΔE00 3.57
Custard
#FFFD78
ΔE00 3.65
Pastel Yellow
#FFFE71
ΔE00 3.77
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#F3EC63 #636AF3
analogous
#F3A463 #F3EC63 #B2F363
triadic
#F3EC63 #63F3EC #EC63F3
tetradic
#F3EC63 #63F3A4 #636AF3 #F363B2
square
#F3EC63 #63F3A4 #636AF3 #F363B2
split-complementary
#F3EC63 #63B2F3 #A463F3
monochromatic
#CCC310 #EFE52A #F3EC63 #F7F39C #FCFAD5
Accessibility & contrast
On white
1.24
#F3EC63 on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
16.99
#F3EC63 on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #F3EC63
16.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##F3EC63 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##F3EC63 | 1.00 | 1.24 | 16.99 | 16.99 |
| #FFFFFF | 1.24 | 1.00 | 21.00 | 21.00 |
| #000000 | 16.99 | 21.00 | 1.00 | 1.00 |
| ##000000 | 16.99 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#FEE453
Deuteranopia (green-blind)
#FFEA6B
Tritanopia (blue-blind)
#FFDECF
Achromatopsia (no color)
#E7E7E7
Design tokens & code
CSS
--color: #f3ec63; /* rgb */ color: rgb(243, 236, 99); /* oklch */ color: oklch(92.3% 0.157 106.3);
Tailwind
colors: {
custom: {
50: '#faf194',
500: '#f3ec63',
950: '#000000',
},
}SCSS
$custom: #f3ec63; $custom-light: #faf194; $custom-dark: #000000;
JSON
{
"hex": "#f3ec63",
"rgb": {
"r": 243,
"g": 236,
"b": 99
},
"hsl": {
"h": 57.083,
"s": 85.714,
"l": 67.059
},
"oklch": {
"l": 0.92321,
"c": 0.15655,
"h": 106.3
},
"luminance": 0.79946
}Semantic roles & 50–950 ramp
primary
#F3EC63
secondary
#3239C8
accent
#0EE203
background
#FFFFFC
surface
#FFFEF5
border
#D7D6CF
text
#18160E
muted
#86857F