#133B75#133B75
#133B75 is a dark, moderate blue. Relative luminance 0.046; OKLCH L 36.0% C 0.109 H 258.3°. Best body text is #FFFFFF at 10.99:1 contrast (WCAG AA passes).
Color values
| HEX | #133B75 |
|---|---|
| RGB | rgb(19, 59, 117) |
| HSL | hsl(216, 72%, 27%) |
| HSV | hsv(216, 84%, 46%) |
| CMYK | cmyk(83.8%, 49.6%, 0%, 54.1%) |
| CIE-LAB | lab(25.41, 9.37, -37.21) |
| CIE-LCH | lch(25.41, 38.37, 284.13°) |
| OKLab | oklab(35.99% -0.0221 -0.1069) |
| OKLCH | oklch(35.99% 0.109 258.3) |
| XYZ | xyz(5.0422, 4.5501, 17.4387) |
| Luminance | 0.0455 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Marine Blue
#01386A
ΔE00 2.41
Darkish Blue
#014182
ΔE00 2.83
Twilight Blue
#0A437A
ΔE00 3.33
Marine
#042E60
ΔE00 4.51
Prussian Blue
#004577
ΔE00 4.86
Cobalt (survey)
#1E488F
ΔE00 4.98
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#133B75 #754D13
analogous
#136C75 #133B75 #1C1375
triadic
#133B75 #75133B #3B7513
tetradic
#133B75 #75136C #754D13 #13751C
square
#133B75 #75136C #754D13 #13751C
split-complementary
#133B75 #751C13 #6C7513
monochromatic
#040D1A #0A2040 #133B75 #1C56AA #2771DC
Accessibility & contrast
On white
10.99
#133B75 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.91
#133B75 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #133B75
10.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##133B75 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##133B75 | 1.00 | 10.99 | 1.91 | 10.99 |
| #FFFFFF | 10.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.91 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 10.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#1A4177
Deuteranopia (green-blind)
#003874
Tritanopia (blue-blind)
#004952
Achromatopsia (no color)
#3C3C3C
Design tokens & code
CSS
--color: #133b75; /* rgb */ color: rgb(19, 59, 117); /* oklch */ color: oklch(36.0% 0.109 258.3);
Tailwind
colors: {
custom: {
50: '#62709d',
500: '#133b75',
950: '#000000',
},
}SCSS
$custom: #133b75; $custom-light: #62709d; $custom-dark: #000000;
JSON
{
"hex": "#133b75",
"rgb": {
"r": 19,
"g": 59,
"b": 117
},
"hsl": {
"h": 215.51,
"s": 72.059,
"l": 26.667
},
"oklch": {
"l": 0.35986,
"c": 0.1092,
"h": 258.3
},
"luminance": 0.04551
}Semantic roles & 50–950 ramp
primary
#133B75
secondary
#AB7C38
accent
#A539EF
background
#F6F6F9
surface
#EBECF2
border
#C6C7CC
text
#06070E
muted
#7A7A7E