#37499E#37499E
#37499E is a dark, vivid blue. Relative luminance 0.080; OKLCH L 44.0% C 0.139 H 270.7°. Best body text is #FFFFFF at 8.05:1 contrast (WCAG AA passes).
Color values
| HEX | #37499E |
|---|---|
| RGB | rgb(55, 73, 158) |
| HSL | hsl(230, 48%, 42%) |
| HSV | hsv(230, 65%, 62%) |
| CMYK | cmyk(65.2%, 53.8%, 0%, 38%) |
| CIE-LAB | lab(34.08, 21.20, -48.49) |
| CIE-LCH | lch(34.08, 52.92, 293.61°) |
| OKLab | oklab(43.97% 0.0016 -0.1392) |
| OKLCH | oklch(43.97% 0.139 270.7) |
| XYZ | xyz(10.1276, 8.0450, 33.3603) |
| Luminance | 0.0805 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Cobalt
#0047AB
ΔE00 4.29
Cobalt (survey)
#1E488F
ΔE00 4.51
Blueberry
#464196
ΔE00 4.56
Sapphire (survey)
#2138AB
ΔE00 5.78
Sapphire
#0F52BA
ΔE00 5.89
Blue Blue
#2242C7
ΔE00 6.17
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#37499E #9E8C37
analogous
#377D9E #37499E #59379E
triadic
#37499E #9E3749 #499E37
tetradic
#37499E #9E377D #9E8C37 #379E59
square
#37499E #9E377D #9E8C37 #379E59
split-complementary
#37499E #9E5937 #7D9E37
monochromatic
#171F43 #273471 #37499E #5064C2 #7D8CD2
Accessibility & contrast
On white
8.05
#37499E on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.61
#37499E on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #37499E
8.05:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##37499E | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##37499E | 1.00 | 8.05 | 2.61 | 8.05 |
| #FFFFFF | 8.05 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.61 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.05 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#1255A1
Deuteranopia (green-blind)
#004C9C
Tritanopia (blue-blind)
#005D6C
Achromatopsia (no color)
#505050
Design tokens & code
CSS
--color: #37499e; /* rgb */ color: rgb(55, 73, 158); /* oklch */ color: oklch(44.0% 0.139 270.7);
Tailwind
colors: {
custom: {
50: '#797bbb',
500: '#37499e',
950: '#000000',
},
}SCSS
$custom: #37499e; $custom-light: #797bbb; $custom-dark: #000000;
JSON
{
"hex": "#37499e",
"rgb": {
"r": 55,
"g": 73,
"b": 158
},
"hsl": {
"h": 229.515,
"s": 48.357,
"l": 41.765
},
"oklch": {
"l": 0.4397,
"c": 0.1392,
"h": 270.7
},
"luminance": 0.08046
}Semantic roles & 50–950 ramp
primary
#37499E
secondary
#BBAF76
accent
#C050D8
background
#F7F7FB
surface
#EEEDF6
border
#C9C8D0
text
#0A0912
muted
#7C7B81