#372AC9#372AC9
#372AC9 is a dark, highly saturated blue. Relative luminance 0.067; OKLCH L 43.0% C 0.229 H 274.5°. Best body text is #FFFFFF at 8.99:1 contrast (WCAG AA passes).
Color values
| HEX | #372AC9 |
|---|---|
| RGB | rgb(55, 42, 201) |
| HSL | hsl(245, 65%, 48%) |
| HSV | hsv(245, 79%, 79%) |
| CMYK | cmyk(72.6%, 79.1%, 0%, 21.2%) |
| CIE-LAB | lab(31.08, 54.32, -78.94) |
| CIE-LCH | lch(31.08, 95.82, 304.53°) |
| OKLab | oklab(42.97% 0.018 -0.2283) |
| OKLCH | oklch(42.97% 0.229 274.5) |
| XYZ | xyz(12.9426, 6.6839, 55.8550) |
| Luminance | 0.0669 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Ultramarine Blue
#1805DB
ΔE00 4.50
Violet Blue
#510AC9
ΔE00 4.57
Purple Blue
#5D21D0
ΔE00 4.59
True Blue
#010FCC
ΔE00 4.63
Indigo Blue
#3A18B1
ΔE00 4.67
Blurple
#5539CC
ΔE00 4.68
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#372AC9 #BCC92A
analogous
#2A6CC9 #372AC9 #872AC9
triadic
#372AC9 #C9372A #2AC937
tetradic
#372AC9 #C92A6C #BCC92A #2AC987
square
#372AC9 #C92A6C #BCC92A #2AC987
split-complementary
#372AC9 #C9872A #6CC92A
monochromatic
#1B1564 #291F96 #372AC9 #6055DB #8F87E6
Accessibility & contrast
On white
8.99
#372AC9 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.34
#372AC9 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #372AC9
8.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##372AC9 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##372AC9 | 1.00 | 8.99 | 2.34 | 8.99 |
| #FFFFFF | 8.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.34 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0050CD
Deuteranopia (green-blind)
#0042C6
Tritanopia (blue-blind)
#005B7A
Achromatopsia (no color)
#494949
Design tokens & code
CSS
--color: #372ac9; /* rgb */ color: rgb(55, 42, 201); /* oklch */ color: oklch(43.0% 0.229 274.5);
Tailwind
colors: {
custom: {
50: '#8568db',
500: '#372ac9',
950: '#000000',
},
}SCSS
$custom: #372ac9; $custom-light: #8568db; $custom-dark: #000000;
JSON
{
"hex": "#372ac9",
"rgb": {
"r": 55,
"g": 42,
"b": 201
},
"hsl": {
"h": 244.906,
"s": 65.432,
"l": 47.647
},
"oklch": {
"l": 0.42972,
"c": 0.22901,
"h": 274.5
},
"luminance": 0.06685
}Semantic roles & 50–950 ramp
primary
#372AC9
secondary
#C9D07F
accent
#E83FDB
background
#F9F6FD
surface
#F1EBFB
border
#CBC6D4
text
#0D0615
muted
#7E7A83