#4B51EA#4B51EA
#4B51EA is a mid, highly saturated blue. Relative luminance 0.133; OKLCH L 52.9% C 0.225 H 273.9°. Best body text is #FFFFFF at 5.73:1 contrast (WCAG AA passes).
Color values
| HEX | #4B51EA |
|---|---|
| RGB | rgb(75, 81, 234) |
| HSL | hsl(238, 79%, 61%) |
| HSV | hsv(238, 68%, 92%) |
| CMYK | cmyk(67.9%, 65.4%, 0%, 8.2%) |
| CIE-LAB | lab(43.24, 45.43, -77.81) |
| CIE-LCH | lch(43.24, 90.10, 300.28°) |
| OKLab | oklab(52.94% 0.0154 -0.2247) |
| OKLCH | oklch(52.94% 0.225 273.9) |
| XYZ | xyz(20.6904, 13.3193, 79.3064) |
| Luminance | 0.1332 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Warm Blue
#4B57DB
ΔE00 2.53
Electric Blue
#0652FF
ΔE00 3.76
Purpleish Blue
#6140EF
ΔE00 4.97
Azul
#1D5DEC
ΔE00 5.68
Dark Periwinkle
#665FD1
ΔE00 5.78
Slate Blue
#6A5ACD
ΔE00 5.85
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#4B51EA #EAE44B
analogous
#4BA0EA #4B51EA #944BEA
triadic
#4B51EA #EA4B51 #51EA4B
tetradic
#4B51EA #EA4BA0 #EAE44B #4BEA94
square
#4B51EA #EA4BA0 #EAE44B #4BEA94
split-complementary
#4B51EA #EA944B #A0EA4B
monochromatic
#1319A7 #1A21DE #4B51EA #8286F0 #B9BBF7
Accessibility & contrast
On white
5.73
#4B51EA on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
3.66
#4B51EA on #000000
AA ✗AA large ✓AAA ✗
Best text color
#FFFFFF on #4B51EA
5.73:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##4B51EA | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##4B51EA | 1.00 | 5.73 | 3.66 | 5.73 |
| #FFFFFF | 5.73 | 1.00 | 21.00 | 1.00 |
| #000000 | 3.66 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 5.73 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#006DEF
Deuteranopia (green-blind)
#005FE7
Tritanopia (blue-blind)
#007997
Achromatopsia (no color)
#666666
Design tokens & code
CSS
--color: #4b51ea; /* rgb */ color: rgb(75, 81, 234); /* oklch */ color: oklch(52.9% 0.225 273.9);
Tailwind
colors: {
custom: {
50: '#9182f2',
500: '#4b51ea',
950: '#000000',
},
}SCSS
$custom: #4b51ea; $custom-light: #9182f2; $custom-dark: #000000;
JSON
{
"hex": "#4b51ea",
"rgb": {
"r": 75,
"g": 81,
"b": 234
},
"hsl": {
"h": 237.736,
"s": 79.104,
"l": 60.588
},
"oklch": {
"l": 0.52935,
"c": 0.22525,
"h": 273.9
},
"luminance": 0.13321
}Semantic roles & 50–950 ramp
primary
#4B51EA
secondary
#E7E4AA
accent
#D30ADB
background
#F9F8FE
surface
#F2EFFD
border
#CCCAD5
text
#0E0A17
muted
#7E7C85