#3723B4#3723B4
#3723B4 is a dark, highly saturated blue. Relative luminance 0.053; OKLCH L 39.9% C 0.211 H 277.2°. Best body text is #FFFFFF at 10.18:1 contrast (WCAG AA passes).
Color values
| HEX | #3723B4 |
|---|---|
| RGB | rgb(55, 35, 180) |
| HSL | hsl(248, 67%, 42%) |
| HSV | hsv(248, 81%, 71%) |
| CMYK | cmyk(69.4%, 80.6%, 0%, 29.4%) |
| CIE-LAB | lab(27.60, 51.33, -72.30) |
| CIE-LCH | lch(27.60, 88.67, 305.37°) |
| OKLab | oklab(39.87% 0.0263 -0.2089) |
| OKLCH | oklch(39.87% 0.211 277.2) |
| XYZ | xyz(10.4121, 5.3086, 43.6471) |
| Luminance | 0.0531 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Indigo Blue
#3A18B1
ΔE00 1.92
True Blue
#010FCC
ΔE00 4.05
Violet Blue
#510AC9
ΔE00 4.58
Mediumblue
#0000CD
ΔE00 4.78
Ultramarine
#2000B1
ΔE00 4.83
Ultramarine Blue
#1805DB
ΔE00 5.02
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3723B4 #A0B423
analogous
#2357B4 #3723B4 #8023B4
triadic
#3723B4 #B43723 #23B437
tetradic
#3723B4 #B42357 #A0B423 #23B480
square
#3723B4 #B42357 #A0B423 #23B480
split-complementary
#3723B4 #B48023 #57B423
monochromatic
#180F4E #271981 #3723B4 #513BD9 #7F6EE3
Accessibility & contrast
On white
10.18
#3723B4 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.06
#3723B4 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #3723B4
10.18:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3723B4 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##3723B4 | 1.00 | 10.18 | 2.06 | 10.18 |
| #FFFFFF | 10.18 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.06 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 10.18 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0047B8
Deuteranopia (green-blind)
#003BB2
Tritanopia (blue-blind)
#00506C
Achromatopsia (no color)
#414141
Design tokens & code
CSS
--color: #3723b4; /* rgb */ color: rgb(55, 35, 180); /* oklch */ color: oklch(39.9% 0.211 277.2);
Tailwind
colors: {
custom: {
50: '#8163cc',
500: '#3723b4',
950: '#000000',
},
}SCSS
$custom: #3723b4; $custom-light: #8163cc; $custom-dark: #000000;
JSON
{
"hex": "#3723b4",
"rgb": {
"r": 55,
"g": 35,
"b": 180
},
"hsl": {
"h": 248.276,
"s": 67.442,
"l": 42.157
},
"oklch": {
"l": 0.3987,
"c": 0.21057,
"h": 277.2
},
"luminance": 0.0531
}Semantic roles & 50–950 ramp
primary
#3723B4
secondary
#BCC969
accent
#EA3DD2
background
#F8F6FC
surface
#F0EBF9
border
#CBC6D2
text
#0C0514
muted
#7D7A82