#538AF0#538AF0
#538AF0 is a light, vivid blue. Relative luminance 0.263; OKLCH L 64.5% C 0.164 H 261.6°. Best body text is #000000 at 6.26:1 contrast (WCAG AA passes).
Color values
| HEX | #538AF0 |
|---|---|
| RGB | rgb(83, 138, 240) |
| HSL | hsl(219, 84%, 63%) |
| HSV | hsv(219, 65%, 94%) |
| CMYK | cmyk(65.4%, 42.5%, 0%, 5.9%) |
| CIE-LAB | lab(58.33, 13.82, -56.73) |
| CIE-LCH | lch(58.33, 58.39, 283.69°) |
| OKLab | oklab(64.52% -0.0239 -0.1619) |
| OKLCH | oklch(64.52% 0.164 261.6) |
| XYZ | xyz(28.3784, 26.3045, 86.0029) |
| Luminance | 0.2631 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Dodger Blue
#3E82FC
ΔE00 2.77
Soft Blue
#6488EA
ΔE00 2.89
Cornflowerblue
#6495ED
ΔE00 3.45
Dark Sky Blue
#448EE4
ΔE00 3.80
Azure
#007FFF
ΔE00 4.70
Dodgerblue
#1E90FF
ΔE00 5.07
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#538AF0 #F0B953
analogous
#53D8F0 #538AF0 #6A53F0
triadic
#538AF0 #F0538A #8AF053
tetradic
#538AF0 #F053D8 #F0B953 #53F06A
square
#538AF0 #F053D8 #F0B953 #53F06A
split-complementary
#538AF0 #F06A53 #D8F053
monochromatic
#104BB9 #1B64EB #538AF0 #8BB0F5 #C4D7FA
Accessibility & contrast
On white
3.35
#538AF0 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
6.26
#538AF0 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #538AF0
6.26:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##538AF0 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##538AF0 | 1.00 | 3.35 | 6.26 | 6.26 |
| #FFFFFF | 3.35 | 1.00 | 21.00 | 21.00 |
| #000000 | 6.26 | 21.00 | 1.00 | 1.00 |
| ##000000 | 6.26 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5A94F4
Deuteranopia (green-blind)
#4085EE
Tritanopia (blue-blind)
#00A1B1
Achromatopsia (no color)
#8C8C8C
Design tokens & code
CSS
--color: #538af0; /* rgb */ color: rgb(83, 138, 240); /* oklch */ color: oklch(64.5% 0.164 261.6);
Tailwind
colors: {
custom: {
50: '#92abf5',
500: '#538af0',
950: '#000000',
},
}SCSS
$custom: #538af0; $custom-light: #92abf5; $custom-dark: #000000;
JSON
{
"hex": "#538af0",
"rgb": {
"r": 83,
"g": 138,
"b": 240
},
"hsl": {
"h": 218.981,
"s": 83.957,
"l": 63.333
},
"oklch": {
"l": 0.64515,
"c": 0.16369,
"h": 261.6
},
"luminance": 0.26307
}Semantic roles & 50–950 ramp
primary
#538AF0
secondary
#EBD8B3
accent
#9405E0
background
#F9FAFF
surface
#F2F4FE
border
#CCCED6
text
#0E1017
muted
#7E7F85