#373DAE#373DAE
#373DAE is a dark, vivid blue. Relative luminance 0.072; OKLCH L 43.0% C 0.177 H 273.9°. Best body text is #FFFFFF at 8.60:1 contrast (WCAG AA passes).
Color values
| HEX | #373DAE |
|---|---|
| RGB | rgb(55, 61, 174) |
| HSL | hsl(237, 52%, 45%) |
| HSV | hsv(237, 68%, 68%) |
| CMYK | cmyk(68.4%, 64.9%, 0%, 31.8%) |
| CIE-LAB | lab(32.27, 34.73, -61.03) |
| CIE-LCH | lch(32.27, 70.22, 299.64°) |
| OKLab | oklab(43.02% 0.0119 -0.1761) |
| OKLCH | oklch(43.02% 0.177 273.9) |
| XYZ | xyz(10.8817, 7.2047, 40.8534) |
| Luminance | 0.0721 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 2.44
Ocean Blue
#4F42B5
ΔE00 3.66
Blue Blue
#2242C7
ΔE00 3.85
Blueberry
#464196
ΔE00 4.55
Blue With A Hint Of Purple
#533CC6
ΔE00 5.35
Blurple
#5539CC
ΔE00 6.20
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#373DAE #AEA837
analogous
#3778AE #373DAE #6D37AE
triadic
#373DAE #AE373D #3DAE37
tetradic
#373DAE #AE3778 #AEA837 #37AE6D
square
#373DAE #AE3778 #AEA837 #37AE6D
split-complementary
#373DAE #AE6D37 #78AE37
monochromatic
#1A1C51 #282D7F #373DAE #585ECA #868BD9
Accessibility & contrast
On white
8.60
#373DAE on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.44
#373DAE on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #373DAE
8.60:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##373DAE | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##373DAE | 1.00 | 8.60 | 2.44 | 8.60 |
| #FFFFFF | 8.60 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.44 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.60 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0051B2
Deuteranopia (green-blind)
#0047AC
Tritanopia (blue-blind)
#005A70
Achromatopsia (no color)
#4C4C4C
Design tokens & code
CSS
--color: #373dae; /* rgb */ color: rgb(55, 61, 174); /* oklch */ color: oklch(43.0% 0.177 273.9);
Tailwind
colors: {
custom: {
50: '#7d73c7',
500: '#373dae',
950: '#000000',
},
}SCSS
$custom: #373dae; $custom-light: #7d73c7; $custom-dark: #000000;
JSON
{
"hex": "#373dae",
"rgb": {
"r": 55,
"g": 61,
"b": 174
},
"hsl": {
"h": 236.975,
"s": 51.965,
"l": 44.902
},
"oklch": {
"l": 0.43024,
"c": 0.17655,
"h": 273.9
},
"luminance": 0.07206
}Semantic roles & 50–950 ramp
primary
#373DAE
secondary
#C3BF7E
accent
#D44CDB
background
#F8F6FC
surface
#EFECF8
border
#CAC7D1
text
#0B0813
muted
#7C7B82