#FFFF59#FFFF59
#FFFF59 is a very light, vivid yellow. Relative luminance 0.935; OKLCH L 97.1% C 0.181 H 109.3°. Best body text is #000000 at 19.70:1 contrast (WCAG AA passes).
Color values
| HEX | #FFFF59 |
|---|---|
| RGB | rgb(255, 255, 89) |
| HSL | hsl(60, 100%, 67%) |
| HSV | hsv(60, 65%, 100%) |
| CMYK | cmyk(0%, 0%, 65.1%, 0%) |
| CIE-LAB | lab(97.43, -19.20, 75.87) |
| CIE-LCH | lch(97.43, 78.26, 104.21°) |
| OKLab | oklab(97.13% -0.0598 0.1704) |
| OKLCH | oklch(97.13% 0.181 109.3) |
| XYZ | xyz(78.8058, 93.5035, 23.3460) |
| Luminance | 0.9350 (WCAG relative) |
| Temperature | warm |
| Family | yellow |
Closest named colors
Lemon (survey)
#FDFF52
ΔE00 0.63
Canary
#FDFF63
ΔE00 1.07
Banana Yellow
#FAFE4B
ΔE00 1.21
Canary Yellow
#FFFE40
ΔE00 1.82
Lemon Yellow
#FDFF38
ΔE00 2.22
Pastel Yellow
#FFFE71
ΔE00 2.32
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#FFFF59 #5959FF
analogous
#FFAC59 #FFFF59 #ACFF59
triadic
#FFFF59 #59FFFF #FF59FF
tetradic
#FFFF59 #59FFAC #5959FF #FF59AC
square
#FFFF59 #59FFAC #5959FF #FF59AC
split-complementary
#FFFF59 #59ACFF #AC59FF
monochromatic
#DEDE00 #FFFF1C #FFFF59 #FFFF96 #FFFFD3
Accessibility & contrast
On white
1.07
#FFFF59 on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
19.70
#FFFF59 on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #FFFF59
19.70:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##FFFF59 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##FFFF59 | 1.00 | 1.07 | 19.70 | 19.70 |
| #FFFFFF | 1.07 | 1.00 | 21.00 | 21.00 |
| #000000 | 19.70 | 21.00 | 1.00 | 1.00 |
| ##000000 | 19.70 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#FFF541
Deuteranopia (green-blind)
#FFFA64
Tritanopia (blue-blind)
#FFEFDD
Achromatopsia (no color)
#F8F8F8
Design tokens & code
CSS
--color: #ffff59; /* rgb */ color: rgb(255, 255, 89); /* oklch */ color: oklch(97.1% 0.181 109.3);
Tailwind
colors: {
custom: {
50: '#ffff90',
500: '#ffff59',
950: '#000000',
},
}SCSS
$custom: #ffff59; $custom-light: #ffff90; $custom-dark: #000000;
JSON
{
"hex": "#ffff59",
"rgb": {
"r": 255,
"g": 255,
"b": 89
},
"hsl": {
"h": 60,
"s": 100,
"l": 67.451
},
"oklch": {
"l": 0.97125,
"c": 0.18061,
"h": 109.3
},
"luminance": 0.93501
}Semantic roles & 50–950 ramp
primary
#FFFF59
secondary
#2626D6
accent
#00E600
background
#FFFFFC
surface
#FFFFF4
border
#D7D7CE
text
#19170D
muted
#87857F