#4B81E1#4B81E1
#4B81E1 is a mid, vivid blue. Relative luminance 0.226; OKLCH L 61.3% C 0.157 H 261.0°. Best body text is #000000 at 5.53:1 contrast (WCAG AA passes).
Color values
| HEX | #4B81E1 |
|---|---|
| RGB | rgb(75, 129, 225) |
| HSL | hsl(218, 71%, 59%) |
| HSV | hsv(218, 67%, 88%) |
| CMYK | cmyk(66.7%, 42.7%, 0%, 11.8%) |
| CIE-LAB | lab(54.69, 12.81, -54.20) |
| CIE-LCH | lch(54.69, 55.70, 283.30°) |
| OKLab | oklab(61.34% -0.0246 -0.1548) |
| OKLCH | oklch(61.34% 0.157 261) |
| XYZ | xyz(24.3377, 22.6302, 74.3050) |
| Luminance | 0.2263 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Dodger Blue
#3E82FC
ΔE00 2.69
Clear Blue
#247AFD
ΔE00 3.47
Azure
#007FFF
ΔE00 3.57
Lightish Blue
#3D7AFD
ΔE00 3.65
Soft Blue
#6488EA
ΔE00 4.17
Deep Sky Blue
#0D75F8
ΔE00 4.63
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#4B81E1 #E1AB4B
analogous
#4BCCE1 #4B81E1 #604BE1
triadic
#4B81E1 #E14B81 #81E14B
tetradic
#4B81E1 #E14BCC #E1AB4B #4BE160
square
#4B81E1 #E14BCC #E1AB4B #4BE160
split-complementary
#4B81E1 #E1604B #CCE14B
monochromatic
#194798 #2260CD #4B81E1 #7FA6EA #B4CAF2
Accessibility & contrast
On white
3.80
#4B81E1 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.53
#4B81E1 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #4B81E1
5.53:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##4B81E1 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##4B81E1 | 1.00 | 3.80 | 5.53 | 5.53 |
| #FFFFFF | 3.80 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.53 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.53 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#538AE5
Deuteranopia (green-blind)
#3B7CDF
Tritanopia (blue-blind)
#0097A6
Achromatopsia (no color)
#838383
Design tokens & code
CSS
--color: #4b81e1; /* rgb */ color: rgb(75, 129, 225); /* oklch */ color: oklch(61.3% 0.157 261.0);
Tailwind
colors: {
custom: {
50: '#8ca5eb',
500: '#4b81e1',
950: '#000000',
},
}SCSS
$custom: #4b81e1; $custom-light: #8ca5eb; $custom-dark: #000000;
JSON
{
"hex": "#4b81e1",
"rgb": {
"r": 75,
"g": 129,
"b": 225
},
"hsl": {
"h": 218.4,
"s": 71.429,
"l": 58.824
},
"oklch": {
"l": 0.61343,
"c": 0.15672,
"h": 261
},
"luminance": 0.22633
}Semantic roles & 50–950 ramp
primary
#4B81E1
secondary
#E1CCA6
accent
#AD3AEE
background
#F9FAFE
surface
#F2F4FD
border
#CCCED5
text
#0D0F16
muted
#7E7F84