#4B73DD#4B73DD
#4B73DD is a mid, vivid blue. Relative luminance 0.190; OKLCH L 58.2% C 0.168 H 265.8°. Best body text is #000000 at 4.80:1 contrast (WCAG AA passes).
Color values
| HEX | #4B73DD |
|---|---|
| RGB | rgb(75, 115, 221) |
| HSL | hsl(224, 68%, 58%) |
| HSV | hsv(224, 66%, 87%) |
| CMYK | cmyk(66.1%, 48%, 0%, 13.3%) |
| CIE-LAB | lab(50.66, 20.04, -58.41) |
| CIE-LCH | lch(50.66, 61.76, 288.94°) |
| OKLab | oklab(58.17% -0.0122 -0.1674) |
| OKLCH | oklch(58.17% 0.168 265.8) |
| XYZ | xyz(22.0790, 18.9757, 70.8917) |
| Luminance | 0.1898 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cornflower Blue
#5170D7
ΔE00 1.65
Royal Blue
#4169E1
ΔE00 3.45
Cerulean Blue
#056EEE
ΔE00 4.10
Deep Sky Blue
#0D75F8
ΔE00 4.30
Lightish Blue
#3D7AFD
ΔE00 4.43
Clear Blue
#247AFD
ΔE00 4.93
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#4B73DD #DDB54B
analogous
#4BBCDD #4B73DD #6C4BDD
triadic
#4B73DD #DD4B73 #73DD4B
tetradic
#4B73DD #DD4BBC #DDB54B #4BDD6C
square
#4B73DD #DD4BBC #DDB54B #4BDD6C
split-complementary
#4B73DD #DD6C4B #BCDD4B
monochromatic
#1C3C92 #2551C5 #4B73DD #7E9BE7 #B2C3F0
Accessibility & contrast
On white
4.38
#4B73DD on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
4.80
#4B73DD on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #4B73DD
4.80:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##4B73DD | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##4B73DD | 1.00 | 4.38 | 4.80 | 4.80 |
| #FFFFFF | 4.38 | 1.00 | 21.00 | 21.00 |
| #000000 | 4.80 | 21.00 | 1.00 | 1.00 |
| ##000000 | 4.80 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#3B80E1
Deuteranopia (green-blind)
#1772DB
Tritanopia (blue-blind)
#008C9D
Achromatopsia (no color)
#797979
Design tokens & code
CSS
--color: #4b73dd; /* rgb */ color: rgb(75, 115, 221); /* oklch */ color: oklch(58.2% 0.168 265.8);
Tailwind
colors: {
custom: {
50: '#8c9ae8',
500: '#4b73dd',
950: '#000000',
},
}SCSS
$custom: #4b73dd; $custom-light: #8c9ae8; $custom-dark: #000000;
JSON
{
"hex": "#4b73dd",
"rgb": {
"r": 75,
"g": 115,
"b": 221
},
"hsl": {
"h": 223.562,
"s": 68.224,
"l": 58.039
},
"oklch": {
"l": 0.58173,
"c": 0.16781,
"h": 265.8
},
"luminance": 0.18978
}Semantic roles & 50–950 ramp
primary
#4B73DD
secondary
#DFCFA5
accent
#BB3DEB
background
#F9F9FE
surface
#F2F2FD
border
#CCCCD5
text
#0D0E16
muted
#7E7E84