#1B134A#1B134A
#1B134A is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 23.8% C 0.097 H 282.8°. Best body text is #FFFFFF at 16.95:1 contrast (WCAG AA passes).
Color values
| HEX | #1B134A |
|---|---|
| RGB | rgb(27, 19, 74) |
| HSL | hsl(249, 59%, 18%) |
| HSV | hsv(249, 74%, 29%) |
| CMYK | cmyk(63.5%, 74.3%, 0%, 71%) |
| CIE-LAB | lab(10.51, 21.94, -32.89) |
| CIE-LCH | lch(10.51, 39.53, 303.70°) |
| OKLab | oklab(23.79% 0.0214 -0.0946) |
| OKLCH | oklch(23.79% 0.097 282.8) |
| XYZ | xyz(1.9205, 1.1930, 6.6063) |
| Luminance | 0.0119 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Navy Blue (survey)
#001146
ΔE00 3.92
Dark Indigo
#1F0954
ΔE00 4.16
Night Blue
#040348
ΔE00 4.56
Midnight Blue (survey)
#020035
ΔE00 5.57
Dark Navy
#000435
ΔE00 5.87
Navy (survey)
#01153E
ΔE00 5.95
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1B134A #424A13
analogous
#13264A #1B134A #36134A
triadic
#1B134A #4A1B13 #134A1B
tetradic
#1B134A #4A1326 #424A13 #134A36
square
#1B134A #4A1326 #424A13 #134A36
split-complementary
#1B134A #4A3613 #264A13
monochromatic
#090618 #090619 #1B134A #2D207B #3F2CAB
Accessibility & contrast
On white
16.95
#1B134A on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.24
#1B134A on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1B134A
16.95:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1B134A | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1B134A | 1.00 | 16.95 | 1.24 | 16.95 |
| #FFFFFF | 16.95 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.24 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 16.95 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#001E4C
Deuteranopia (green-blind)
#001B49
Tritanopia (blue-blind)
#03212C
Achromatopsia (no color)
#1C1C1C
Design tokens & code
CSS
--color: #1b134a; /* rgb */ color: rgb(27, 19, 74); /* oklch */ color: oklch(23.8% 0.097 282.8);
Tailwind
colors: {
custom: {
50: '#5e517d',
500: '#1b134a',
950: '#000000',
},
}SCSS
$custom: #1b134a; $custom-light: #5e517d; $custom-dark: #000000;
JSON
{
"hex": "#1b134a",
"rgb": {
"r": 27,
"g": 19,
"b": 74
},
"hsl": {
"h": 248.727,
"s": 59.14,
"l": 18.235
},
"oklch": {
"l": 0.23786,
"c": 0.09703,
"h": 282.8
},
"luminance": 0.01193
}Semantic roles & 50–950 ramp
primary
#1B134A
secondary
#788336
accent
#E245CC
background
#F5F4F7
surface
#E9E7EE
border
#C5C3C9
text
#05020A
muted
#79787C