#373BAC#373BAC
#373BAC is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.5% C 0.176 H 274.4°. Best body text is #FFFFFF at 8.81:1 contrast (WCAG AA passes).
Color values
| HEX | #373BAC |
|---|---|
| RGB | rgb(55, 59, 172) |
| HSL | hsl(238, 52%, 45%) |
| HSV | hsv(238, 68%, 67%) |
| CMYK | cmyk(68%, 65.7%, 0%, 32.5%) |
| CIE-LAB | lab(31.62, 35.29, -60.90) |
| CIE-LCH | lch(31.62, 70.39, 300.09°) |
| OKLab | oklab(42.5% 0.0136 -0.1758) |
| OKLCH | oklch(42.5% 0.176 274.4) |
| XYZ | xyz(10.5834, 6.9178, 39.7992) |
| Luminance | 0.0692 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 2.26
Ocean Blue
#4F42B5
ΔE00 3.88
Blue Blue
#2242C7
ΔE00 4.34
Blueberry
#464196
ΔE00 4.51
Blue With A Hint Of Purple
#533CC6
ΔE00 5.46
Darkslateblue
#483D8B
ΔE00 6.21
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#373BAC #ACA837
analogous
#3775AC #373BAC #6E37AC
triadic
#373BAC #AC373B #3BAC37
tetradic
#373BAC #AC3775 #ACA837 #37AC6E
square
#373BAC #AC3775 #ACA837 #37AC6E
split-complementary
#373BAC #AC6E37 #75AC37
monochromatic
#191B4F #282B7E #373BAC #575BC9 #8588D8
Accessibility & contrast
On white
8.81
#373BAC on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.38
#373BAC on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #373BAC
8.81:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##373BAC | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##373BAC | 1.00 | 8.81 | 2.38 | 8.81 |
| #FFFFFF | 8.81 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.38 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.81 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0050B0
Deuteranopia (green-blind)
#0045AA
Tritanopia (blue-blind)
#00586E
Achromatopsia (no color)
#4A4A4A
Design tokens & code
CSS
--color: #373bac; /* rgb */ color: rgb(55, 59, 172); /* oklch */ color: oklch(42.5% 0.176 274.4);
Tailwind
colors: {
custom: {
50: '#7d71c6',
500: '#373bac',
950: '#000000',
},
}SCSS
$custom: #373bac; $custom-light: #7d71c6; $custom-dark: #000000;
JSON
{
"hex": "#373bac",
"rgb": {
"r": 55,
"g": 59,
"b": 172
},
"hsl": {
"h": 237.949,
"s": 51.542,
"l": 44.51
},
"oklch": {
"l": 0.42496,
"c": 0.1763,
"h": 274.4
},
"luminance": 0.06919
}Semantic roles & 50–950 ramp
primary
#373BAC
secondary
#C2C07D
accent
#D64DDB
background
#F8F6FC
surface
#EFECF8
border
#CAC7D1
text
#0B0713
muted
#7C7A82