#373AB6#373AB6
#373AB6 is a dark, vivid blue. Relative luminance 0.072; OKLCH L 43.3% C 0.190 H 274.0°. Best body text is #FFFFFF at 8.60:1 contrast (WCAG AA passes).
Color values
| HEX | #373AB6 |
|---|---|
| RGB | rgb(55, 58, 182) |
| HSL | hsl(239, 54%, 46%) |
| HSV | hsv(239, 70%, 71%) |
| CMYK | cmyk(69.8%, 68.1%, 0%, 28.6%) |
| CIE-LAB | lab(32.29, 39.36, -65.75) |
| CIE-LCH | lch(32.29, 76.63, 300.91°) |
| OKLab | oklab(43.26% 0.0133 -0.19) |
| OKLCH | oklch(43.26% 0.19 274) |
| XYZ | xyz(11.5293, 7.2146, 45.0319) |
| Luminance | 0.0722 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 2.88
Ocean Blue
#4F42B5
ΔE00 3.61
Blue Blue
#2242C7
ΔE00 3.62
Blue With A Hint Of Purple
#533CC6
ΔE00 4.43
Blurple
#5539CC
ΔE00 5.14
Blueberry
#464196
ΔE00 5.71
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#373AB6 #B6B337
analogous
#377AB6 #373AB6 #7437B6
triadic
#373AB6 #B6373A #3AB637
tetradic
#373AB6 #B6377A #B6B337 #37B674
square
#373AB6 #B6377A #B6B337 #37B674
split-complementary
#373AB6 #B67437 #7AB637
monochromatic
#1B1C58 #292B87 #373AB6 #5C5FCE #8B8DDC
Accessibility & contrast
On white
8.60
#373AB6 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.44
#373AB6 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #373AB6
8.60:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##373AB6 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##373AB6 | 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)
#0052BA
Deuteranopia (green-blind)
#0046B4
Tritanopia (blue-blind)
#005B73
Achromatopsia (no color)
#4C4C4C
Design tokens & code
CSS
--color: #373ab6; /* rgb */ color: rgb(55, 58, 182); /* oklch */ color: oklch(43.3% 0.190 274.0);
Tailwind
colors: {
custom: {
50: '#7f71cd',
500: '#373ab6',
950: '#000000',
},
}SCSS
$custom: #373ab6; $custom-light: #7f71cd; $custom-dark: #000000;
JSON
{
"hex": "#373ab6",
"rgb": {
"r": 55,
"g": 58,
"b": 182
},
"hsl": {
"h": 238.583,
"s": 53.586,
"l": 46.471
},
"oklch": {
"l": 0.4326,
"c": 0.19045,
"h": 274
},
"luminance": 0.07216
}Semantic roles & 50–950 ramp
primary
#373AB6
secondary
#C6C582
accent
#DA4BDD
background
#F8F6FC
surface
#F0ECF9
border
#CBC7D2
text
#0C0714
muted
#7D7A82