#374CA1#374CA1
#374CA1 is a dark, vivid blue. Relative luminance 0.086; OKLCH L 44.8% C 0.140 H 269.6°. Best body text is #FFFFFF at 7.75:1 contrast (WCAG AA passes).
Color values
| HEX | #374CA1 |
|---|---|
| RGB | rgb(55, 76, 161) |
| HSL | hsl(228, 49%, 42%) |
| HSV | hsv(228, 66%, 63%) |
| CMYK | cmyk(65.8%, 52.8%, 0%, 36.9%) |
| CIE-LAB | lab(35.11, 20.30, -48.63) |
| CIE-LCH | lch(35.11, 52.70, 292.66°) |
| OKLab | oklab(44.82% -0.0011 -0.1395) |
| OKLCH | oklch(44.82% 0.14 269.6) |
| XYZ | xyz(10.5908, 8.5534, 34.8041) |
| Luminance | 0.0855 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cobalt
#0047AB
ΔE00 4.09
Cobalt (survey)
#1E488F
ΔE00 4.47
Sapphire
#0F52BA
ΔE00 5.03
Blueberry
#464196
ΔE00 5.45
Dusk Blue
#26538D
ΔE00 5.94
Denim Blue
#3B5B92
ΔE00 5.95
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#374CA1 #A18C37
analogous
#3781A1 #374CA1 #5737A1
triadic
#374CA1 #A1374C #4CA137
tetradic
#374CA1 #A13781 #A18C37 #37A157
square
#374CA1 #A13781 #A18C37 #37A157
split-complementary
#374CA1 #A15737 #81A137
monochromatic
#182146 #273673 #374CA1 #5168C4 #7F90D3
Accessibility & contrast
On white
7.75
#374CA1 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.71
#374CA1 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #374CA1
7.75:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##374CA1 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##374CA1 | 1.00 | 7.75 | 2.71 | 7.75 |
| #FFFFFF | 7.75 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.71 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 7.75 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#1858A4
Deuteranopia (green-blind)
#004E9F
Tritanopia (blue-blind)
#00606F
Achromatopsia (no color)
#535353
Design tokens & code
CSS
--color: #374ca1; /* rgb */ color: rgb(55, 76, 161); /* oklch */ color: oklch(44.8% 0.140 269.6);
Tailwind
colors: {
custom: {
50: '#7a7dbd',
500: '#374ca1',
950: '#000000',
},
}SCSS
$custom: #374ca1; $custom-light: #7a7dbd; $custom-dark: #000000;
JSON
{
"hex": "#374ca1",
"rgb": {
"r": 55,
"g": 76,
"b": 161
},
"hsl": {
"h": 228.113,
"s": 49.074,
"l": 42.353
},
"oklch": {
"l": 0.44817,
"c": 0.13955,
"h": 269.6
},
"luminance": 0.08554
}Semantic roles & 50–950 ramp
primary
#374CA1
secondary
#BDAF77
accent
#BD4FD9
background
#F7F7FB
surface
#EEEEF7
border
#C9C9D0
text
#0A0912
muted
#7C7B81