#131B4A#131B4A
#131B4A is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.8% C 0.087 H 271.2°. Best body text is #FFFFFF at 16.36:1 contrast (WCAG AA passes).
Color values
| HEX | #131B4A |
|---|---|
| RGB | rgb(19, 27, 74) |
| HSL | hsl(231, 59%, 18%) |
| HSV | hsv(231, 74%, 29%) |
| CMYK | cmyk(74.3%, 63.5%, 0%, 71%) |
| CIE-LAB | lab(12.07, 14.63, -30.37) |
| CIE-LCH | lch(12.07, 33.71, 295.71°) |
| OKLab | oklab(24.76% 0.0019 -0.0874) |
| OKLCH | oklch(24.76% 0.087 271.2) |
| XYZ | xyz(1.8961, 1.4165, 6.6507) |
| Luminance | 0.0142 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Navy (survey)
#01153E
ΔE00 3.13
Navy Blue (survey)
#001146
ΔE00 3.36
Dark Navy
#000435
ΔE00 5.49
Very Dark Blue
#000133
ΔE00 5.95
Midnight Blue (survey)
#020035
ΔE00 6.01
Navy Blue
#1B2A4A
ΔE00 6.22
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#131B4A #4A4213
analogous
#13364A #131B4A #26134A
triadic
#131B4A #4A131B #1B4A13
tetradic
#131B4A #4A1336 #4A4213 #134A26
square
#131B4A #4A1336 #4A4213 #134A26
split-complementary
#131B4A #4A2613 #364A13
monochromatic
#060918 #060919 #131B4A #202D7B #2C3FAB
Accessibility & contrast
On white
16.36
#131B4A on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.28
#131B4A on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #131B4A
16.36:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##131B4A | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##131B4A | 1.00 | 16.36 | 1.28 | 16.36 |
| #FFFFFF | 16.36 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.28 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 16.36 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#00224C
Deuteranopia (green-blind)
#001D49
Tritanopia (blue-blind)
#00262F
Achromatopsia (no color)
#202020
Design tokens & code
CSS
--color: #131b4a; /* rgb */ color: rgb(19, 27, 74); /* oklch */ color: oklch(24.8% 0.087 271.2);
Tailwind
colors: {
custom: {
50: '#59577d',
500: '#131b4a',
950: '#000000',
},
}SCSS
$custom: #131b4a; $custom-light: #59577d; $custom-dark: #000000;
JSON
{
"hex": "#131b4a",
"rgb": {
"r": 19,
"g": 27,
"b": 74
},
"hsl": {
"h": 231.273,
"s": 59.14,
"l": 18.235
},
"oklch": {
"l": 0.24762,
"c": 0.08746,
"h": 271.2
},
"luminance": 0.01417
}Semantic roles & 50–950 ramp
primary
#131B4A
secondary
#837836
accent
#CC45E2
background
#F5F5F7
surface
#E9E9EE
border
#C5C5C9
text
#040309
muted
#79787B