#372AB3#372AB3
#372AB3 is a dark, highly saturated blue. Relative luminance 0.057; OKLCH L 40.6% C 0.203 H 276.6°. Best body text is #FFFFFF at 9.79:1 contrast (WCAG AA passes).
Color values
| HEX | #372AB3 |
|---|---|
| RGB | rgb(55, 42, 179) |
| HSL | hsl(246, 62%, 43%) |
| HSV | hsv(246, 77%, 70%) |
| CMYK | cmyk(69.3%, 76.5%, 0%, 29.8%) |
| CIE-LAB | lab(28.70, 47.53, -69.88) |
| CIE-LCH | lch(28.70, 84.51, 304.22°) |
| OKLab | oklab(40.61% 0.0232 -0.202) |
| OKLCH | oklch(40.61% 0.203 276.6) |
| XYZ | xyz(10.5375, 5.7219, 43.1882) |
| Luminance | 0.0572 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Indigo Blue
#3A18B1
ΔE00 3.30
Sapphire (survey)
#2138AB
ΔE00 4.92
True Blue
#010FCC
ΔE00 5.02
Violet Blue
#510AC9
ΔE00 5.46
Ultramarine Blue
#1805DB
ΔE00 5.87
Mediumblue
#0000CD
ΔE00 5.90
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#372AB3 #A6B32A
analogous
#2A62B3 #372AB3 #7B2AB3
triadic
#372AB3 #B3372A #2AB337
tetradic
#372AB3 #B32A62 #A6B32A #2AB37B
square
#372AB3 #B32A62 #A6B32A #2AB37B
split-complementary
#372AB3 #B37B2A #62B32A
monochromatic
#191350 #281E81 #372AB3 #5446D4 #8278DF
Accessibility & contrast
On white
9.79
#372AB3 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.14
#372AB3 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #372AB3
9.79:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##372AB3 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##372AB3 | 1.00 | 9.79 | 2.14 | 9.79 |
| #FFFFFF | 9.79 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.14 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 9.79 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#0049B7
Deuteranopia (green-blind)
#003EB1
Tritanopia (blue-blind)
#00526D
Achromatopsia (no color)
#444444
Design tokens & code
CSS
--color: #372ab3; /* rgb */ color: rgb(55, 42, 179); /* oklch */ color: oklch(40.6% 0.203 276.6);
Tailwind
colors: {
custom: {
50: '#8066cb',
500: '#372ab3',
950: '#000000',
},
}SCSS
$custom: #372ab3; $custom-light: #8066cb; $custom-dark: #000000;
JSON
{
"hex": "#372ab3",
"rgb": {
"r": 55,
"g": 42,
"b": 179
},
"hsl": {
"h": 245.693,
"s": 61.991,
"l": 43.333
},
"oklch": {
"l": 0.40609,
"c": 0.2033,
"h": 276.6
},
"luminance": 0.05723
}Semantic roles & 50–950 ramp
primary
#372AB3
secondary
#BFC772
accent
#E543D6
background
#F8F6FC
surface
#F0EBF9
border
#CBC6D2
text
#0C0613
muted
#7D7A82