#373BAB#373BAB
#373BAB is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.4% C 0.175 H 274.5°. Best body text is #FFFFFF at 8.84:1 contrast (WCAG AA passes).
Color values
| HEX | #373BAB |
|---|---|
| RGB | rgb(55, 59, 171) |
| HSL | hsl(238, 51%, 44%) |
| HSV | hsv(238, 68%, 67%) |
| CMYK | cmyk(67.8%, 65.5%, 0%, 32.9%) |
| CIE-LAB | lab(31.53, 34.95, -60.44) |
| CIE-LCH | lch(31.53, 69.82, 300.03°) |
| OKLab | oklab(42.41% 0.0137 -0.1744) |
| OKLCH | oklch(42.41% 0.175 274.5) |
| XYZ | xyz(10.4878, 6.8795, 39.2954) |
| Luminance | 0.0688 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 2.24
Ocean Blue
#4F42B5
ΔE00 3.94
Blueberry
#464196
ΔE00 4.40
Blue Blue
#2242C7
ΔE00 4.44
Blue With A Hint Of Purple
#533CC6
ΔE00 5.57
Darkslateblue
#483D8B
ΔE00 6.09
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#373BAB #ABA737
analogous
#3775AB #373BAB #6D37AB
triadic
#373BAB #AB373B #3BAB37
tetradic
#373BAB #AB3775 #ABA737 #37AB6D
square
#373BAB #AB3775 #ABA737 #37AB6D
split-complementary
#373BAB #AB6D37 #75AB37
monochromatic
#191B4E #282B7D #373BAB #565AC9 #8588D8
Accessibility & contrast
On white
8.84
#373BAB on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.38
#373BAB on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #373BAB
8.84:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##373BAB | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##373BAB | 1.00 | 8.84 | 2.38 | 8.84 |
| #FFFFFF | 8.84 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.38 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.84 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#004FAF
Deuteranopia (green-blind)
#0045A9
Tritanopia (blue-blind)
#00586D
Achromatopsia (no color)
#4A4A4A
Design tokens & code
CSS
--color: #373bab; /* rgb */ color: rgb(55, 59, 171); /* oklch */ color: oklch(42.4% 0.175 274.5);
Tailwind
colors: {
custom: {
50: '#7d71c5',
500: '#373bab',
950: '#000000',
},
}SCSS
$custom: #373bab; $custom-light: #7d71c5; $custom-dark: #000000;
JSON
{
"hex": "#373bab",
"rgb": {
"r": 55,
"g": 59,
"b": 171
},
"hsl": {
"h": 237.931,
"s": 51.327,
"l": 44.314
},
"oklch": {
"l": 0.42405,
"c": 0.17498,
"h": 274.5
},
"luminance": 0.0688
}Semantic roles & 50–950 ramp
primary
#373BAB
secondary
#C1BF7C
accent
#D64DDB
background
#F8F6FC
surface
#EFECF8
border
#CAC7D1
text
#0B0713
muted
#7C7A82