#37598B#37598B
#37598B is a mid, moderate blue. Relative luminance 0.098; OKLCH L 46.2% C 0.091 H 257.9°. Best body text is #FFFFFF at 7.08:1 contrast (WCAG AA passes).
Color values
| HEX | #37598B |
|---|---|
| RGB | rgb(55, 89, 139) |
| HSL | hsl(216, 43%, 38%) |
| HSV | hsv(216, 60%, 55%) |
| CMYK | cmyk(60.4%, 36%, 0%, 45.5%) |
| CIE-LAB | lab(37.52, 3.83, -31.49) |
| CIE-LCH | lch(37.52, 31.72, 276.94°) |
| OKLab | oklab(46.23% -0.0191 -0.0891) |
| OKLCH | oklch(46.23% 0.091 257.9) |
| XYZ | xyz(9.8065, 9.8202, 25.7998) |
| Luminance | 0.0982 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Denim Blue
#3B5B92
ΔE00 1.32
Light Navy Blue
#2E5A88
ΔE00 2.34
Dusk Blue
#26538D
ΔE00 2.63
Dusky Blue
#475F94
ΔE00 3.48
Denim (survey)
#3B638C
ΔE00 4.03
Light Navy
#155084
ΔE00 4.74
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#37598B #8B6937
analogous
#37838B #37598B #3F378B
triadic
#37598B #8B3759 #598B37
tetradic
#37598B #8B3783 #8B6937 #378B3F
square
#37598B #8B3783 #8B6937 #378B3F
split-complementary
#37598B #8B3F37 #838B37
monochromatic
#142133 #263D5F #37598B #4875B7 #7496C8
Accessibility & contrast
On white
7.08
#37598B on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.96
#37598B on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #37598B
7.08:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##37598B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##37598B | 1.00 | 7.08 | 2.96 | 7.08 |
| #FFFFFF | 7.08 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.96 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 7.08 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#445D8D
Deuteranopia (green-blind)
#39558A
Tritanopia (blue-blind)
#00646B
Achromatopsia (no color)
#585858
Design tokens & code
CSS
--color: #37598b; /* rgb */ color: rgb(55, 89, 139); /* oklch */ color: oklch(46.2% 0.091 257.9);
Tailwind
colors: {
custom: {
50: '#7587ad',
500: '#37598b',
950: '#000000',
},
}SCSS
$custom: #37598b; $custom-light: #7587ad; $custom-dark: #000000;
JSON
{
"hex": "#37598b",
"rgb": {
"r": 55,
"g": 89,
"b": 139
},
"hsl": {
"h": 215.714,
"s": 43.299,
"l": 38.039
},
"oklch": {
"l": 0.4623,
"c": 0.09111,
"h": 257.9
},
"luminance": 0.09821
}Semantic roles & 50–950 ramp
primary
#37598B
secondary
#B1956D
accent
#A055D3
background
#F7F8FA
surface
#EDEFF4
border
#C8CACE
text
#090B10
muted
#7B7C7F