#4B5FDB#4B5FDB
#4B5FDB is a mid, vivid blue. Relative luminance 0.148; OKLCH L 54.1% C 0.190 H 271.6°. Best body text is #FFFFFF at 5.30:1 contrast (WCAG AA passes).
Color values
| HEX | #4B5FDB |
|---|---|
| RGB | rgb(75, 95, 219) |
| HSL | hsl(232, 67%, 58%) |
| HSV | hsv(232, 66%, 86%) |
| CMYK | cmyk(65.8%, 56.6%, 0%, 14.1%) |
| CIE-LAB | lab(45.35, 31.84, -65.86) |
| CIE-LCH | lch(45.35, 73.16, 295.80°) |
| OKLab | oklab(54.12% 0.0053 -0.1895) |
| OKLCH | oklch(54.12% 0.19 271.6) |
| XYZ | xyz(19.7757, 14.7929, 68.8173) |
| Luminance | 0.1479 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Warm Blue
#4B57DB
ΔE00 2.58
Azul
#1D5DEC
ΔE00 3.61
Royal Blue
#4169E1
ΔE00 3.96
Dark Periwinkle
#665FD1
ΔE00 4.39
Bright Blue
#0165FC
ΔE00 5.47
Electric Blue
#0652FF
ΔE00 5.52
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#4B5FDB #DBC74B
analogous
#4BA7DB #4B5FDB #7F4BDB
triadic
#4B5FDB #DB4B5F #5FDB4B
tetradic
#4B5FDB #DB4BA7 #DBC74B #4BDB7F
square
#4B5FDB #DB4BA7 #DBC74B #4BDB7F
split-complementary
#4B5FDB #DB7F4B #A7DB4B
monochromatic
#1D2C8F #273CC2 #4B5FDB #7E8CE5 #B1BAEF
Accessibility & contrast
On white
5.30
#4B5FDB on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.96
#4B5FDB on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #4B5FDB
5.30:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##4B5FDB | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##4B5FDB | 1.00 | 5.30 | 3.96 | 5.30 |
| #FFFFFF | 5.30 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.96 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.30 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0072DF
Deuteranopia (green-blind)
#0065D9
Tritanopia (blue-blind)
#007D94
Achromatopsia (no color)
#6B6B6B
Design tokens & code
CSS
--color: #4b5fdb; /* rgb */ color: rgb(75, 95, 219); /* oklch */ color: oklch(54.1% 0.190 271.6);
Tailwind
colors: {
custom: {
50: '#8d8ce7',
500: '#4b5fdb',
950: '#000000',
},
}SCSS
$custom: #4b5fdb; $custom-light: #8d8ce7; $custom-dark: #000000;
JSON
{
"hex": "#4b5fdb",
"rgb": {
"r": 75,
"g": 95,
"b": 219
},
"hsl": {
"h": 231.667,
"s": 66.667,
"l": 57.647
},
"oklch": {
"l": 0.54121,
"c": 0.18962,
"h": 271.6
},
"luminance": 0.14795
}Semantic roles & 50–950 ramp
primary
#4B5FDB
secondary
#DED6A4
accent
#D23EEA
background
#F9F8FE
surface
#F2F0FD
border
#CCCBD5
text
#0D0C16
muted
#7E7D84