#372A9E#372A9E
#372A9E is a dark, vivid blue. Relative luminance 0.049; OKLCH L 38.4% C 0.178 H 279.0°. Best body text is #FFFFFF at 10.57:1 contrast (WCAG AA passes).
Color values
| HEX | #372A9E |
|---|---|
| RGB | rgb(55, 42, 158) |
| HSL | hsl(247, 58%, 39%) |
| HSV | hsv(247, 73%, 62%) |
| CMYK | cmyk(65.2%, 73.4%, 0%, 38%) |
| CIE-LAB | lab(26.55, 40.82, -60.76) |
| CIE-LCH | lch(26.55, 73.20, 303.89°) |
| OKLab | oklab(38.45% 0.0279 -0.1754) |
| OKLCH | oklch(38.45% 0.178 279) |
| XYZ | xyz(8.5731, 4.9361, 32.8421) |
| Luminance | 0.0494 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Indigo Blue
#3A18B1
ΔE00 4.23
Sapphire (survey)
#2138AB
ΔE00 5.08
Royal
#0C1793
ΔE00 5.45
Cobalt Blue
#030AA7
ΔE00 6.32
Ultramarine
#2000B1
ΔE00 6.54
Royal Blue (survey)
#0504AA
ΔE00 6.73
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#372A9E #919E2A
analogous
#2A579E #372A9E #712A9E
triadic
#372A9E #9E372A #2A9E37
tetradic
#372A9E #9E2A57 #919E2A #2A9E71
square
#372A9E #9E2A57 #919E2A #2A9E71
split-complementary
#372A9E #9E712A #579E2A
monochromatic
#15103D #261D6E #372A9E #4B3ACB #776BD8
Accessibility & contrast
On white
10.57
#372A9E on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.99
#372A9E on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #372A9E
10.57:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##372A9E | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##372A9E | 1.00 | 10.57 | 1.99 | 10.57 |
| #FFFFFF | 10.57 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.99 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 10.57 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0043A1
Deuteranopia (green-blind)
#003A9C
Tritanopia (blue-blind)
#004A61
Achromatopsia (no color)
#3F3F3F
Design tokens & code
CSS
--color: #372a9e; /* rgb */ color: rgb(55, 42, 158); /* oklch */ color: oklch(38.4% 0.178 279.0);
Tailwind
colors: {
custom: {
50: '#7c65bc',
500: '#372a9e',
950: '#000000',
},
}SCSS
$custom: #372a9e; $custom-light: #7c65bc; $custom-dark: #000000;
JSON
{
"hex": "#372a9e",
"rgb": {
"r": 55,
"g": 42,
"b": 158
},
"hsl": {
"h": 246.724,
"s": 58,
"l": 39.216
},
"oklch": {
"l": 0.38448,
"c": 0.17758,
"h": 279
},
"luminance": 0.04937
}Semantic roles & 50–950 ramp
primary
#372A9E
secondary
#B4BE66
accent
#E147D0
background
#F8F6FB
surface
#EFEBF6
border
#CAC6D0
text
#0B0612
muted
#7C7A81