#372AA8#372AA8
#372AA8 is a dark, vivid blue. Relative luminance 0.053; OKLCH L 39.5% C 0.190 H 277.8°. Best body text is #FFFFFF at 10.20:1 contrast (WCAG AA passes).
Color values
| HEX | #372AA8 |
|---|---|
| RGB | rgb(55, 42, 168) |
| HSL | hsl(246, 60%, 41%) |
| HSV | hsv(246, 75%, 66%) |
| CMYK | cmyk(67.3%, 75%, 0%, 34.1%) |
| CIE-LAB | lab(27.56, 44.04, -65.17) |
| CIE-LCH | lch(27.56, 78.65, 304.05°) |
| OKLab | oklab(39.46% 0.0257 -0.1882) |
| OKLCH | oklch(39.46% 0.19 277.8) |
| XYZ | xyz(9.4691, 5.2945, 37.5611) |
| Luminance | 0.0529 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Indigo Blue
#3A18B1
ΔE00 3.49
Sapphire (survey)
#2138AB
ΔE00 4.80
True Blue
#010FCC
ΔE00 5.89
Royal
#0C1793
ΔE00 6.00
Ultramarine
#2000B1
ΔE00 6.14
Cobalt Blue
#030AA7
ΔE00 6.22
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#372AA8 #9BA82A
analogous
#2A5CA8 #372AA8 #762AA8
triadic
#372AA8 #A8372A #2AA837
tetradic
#372AA8 #A82A5C #9BA82A #2AA876
square
#372AA8 #A82A5C #9BA82A #2AA876
split-complementary
#372AA8 #A8762A #5CA82A
monochromatic
#171246 #271E77 #372AA8 #4F40CF #7C71DB
Accessibility & contrast
On white
10.20
#372AA8 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.06
#372AA8 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #372AA8
10.20:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##372AA8 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##372AA8 | 1.00 | 10.20 | 2.06 | 10.20 |
| #FFFFFF | 10.20 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.06 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 10.20 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0046AC
Deuteranopia (green-blind)
#003CA6
Tritanopia (blue-blind)
#004E67
Achromatopsia (no color)
#414141
Design tokens & code
CSS
--color: #372aa8; /* rgb */ color: rgb(55, 42, 168); /* oklch */ color: oklch(39.5% 0.190 277.8);
Tailwind
colors: {
custom: {
50: '#7e66c3',
500: '#372aa8',
950: '#000000',
},
}SCSS
$custom: #372aa8; $custom-light: #7e66c3; $custom-dark: #000000;
JSON
{
"hex": "#372aa8",
"rgb": {
"r": 55,
"g": 42,
"b": 168
},
"hsl": {
"h": 246.19,
"s": 60,
"l": 41.176
},
"oklch": {
"l": 0.39464,
"c": 0.18999,
"h": 277.8
},
"luminance": 0.05295
}Semantic roles & 50–950 ramp
primary
#372AA8
secondary
#BAC36B
accent
#E345D3
background
#F8F6FC
surface
#EFEBF8
border
#CAC6D1
text
#0B0613
muted
#7C7A82