#373CAA#373CAA
#373CAA is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.5% C 0.172 H 274.3°. Best body text is #FFFFFF at 8.79:1 contrast (WCAG AA passes).
Color values
| HEX | #373CAA |
|---|---|
| RGB | rgb(55, 60, 170) |
| HSL | hsl(237, 51%, 44%) |
| HSV | hsv(237, 68%, 67%) |
| CMYK | cmyk(67.6%, 64.7%, 0%, 33.3%) |
| CIE-LAB | lab(31.68, 33.96, -59.60) |
| CIE-LCH | lch(31.68, 68.60, 299.68°) |
| OKLab | oklab(42.49% 0.013 -0.172) |
| OKLCH | oklch(42.49% 0.172 274.3) |
| XYZ | xyz(10.4447, 6.9453, 38.8126) |
| Luminance | 0.0695 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 2.28
Ocean Blue
#4F42B5
ΔE00 3.95
Blueberry
#464196
ΔE00 4.19
Blue Blue
#2242C7
ΔE00 4.42
Blue With A Hint Of Purple
#533CC6
ΔE00 5.73
Darkslateblue
#483D8B
ΔE00 5.96
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#373CAA #AAA537
analogous
#3776AA #373CAA #6C37AA
triadic
#373CAA #AA373C #3CAA37
tetradic
#373CAA #AA3776 #AAA537 #37AA6C
square
#373CAA #AA3776 #AAA537 #37AA6C
split-complementary
#373CAA #AA6C37 #76AA37
monochromatic
#191B4E #282C7C #373CAA #565BC8 #8488D7
Accessibility & contrast
On white
8.79
#373CAA on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.39
#373CAA on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #373CAA
8.79:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##373CAA | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##373CAA | 1.00 | 8.79 | 2.39 | 8.79 |
| #FFFFFF | 8.79 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.39 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.79 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0050AD
Deuteranopia (green-blind)
#0045A8
Tritanopia (blue-blind)
#00586D
Achromatopsia (no color)
#4B4B4B
Design tokens & code
CSS
--color: #373caa; /* rgb */ color: rgb(55, 60, 170); /* oklch */ color: oklch(42.5% 0.172 274.3);
Tailwind
colors: {
custom: {
50: '#7d72c4',
500: '#373caa',
950: '#000000',
},
}SCSS
$custom: #373caa; $custom-light: #7d72c4; $custom-dark: #000000;
JSON
{
"hex": "#373caa",
"rgb": {
"r": 55,
"g": 60,
"b": 170
},
"hsl": {
"h": 237.391,
"s": 51.111,
"l": 44.118
},
"oklch": {
"l": 0.42488,
"c": 0.17245,
"h": 274.3
},
"luminance": 0.06946
}Semantic roles & 50–950 ramp
primary
#373CAA
secondary
#C1BE7C
accent
#D44DDB
background
#F8F6FC
surface
#EFECF8
border
#CAC7D1
text
#0B0813
muted
#7C7B82