#1B145F#1B145F
#1B145F is a dark, vivid blue. Relative luminance 0.016; OKLCH L 26.2% C 0.126 H 277.4°. Best body text is #FFFFFF at 16.01:1 contrast (WCAG AA passes).
Color values
| HEX | #1B145F |
|---|---|
| RGB | rgb(27, 20, 95) |
| HSL | hsl(246, 65%, 23%) |
| HSV | hsv(246, 79%, 37%) |
| CMYK | cmyk(71.6%, 78.9%, 0%, 62.7%) |
| CIE-LAB | lab(12.98, 28.90, -43.12) |
| CIE-LCH | lch(12.98, 51.91, 303.83°) |
| OKLab | oklab(26.23% 0.0163 -0.1246) |
| OKLCH | oklch(26.23% 0.126 277.4) |
| XYZ | xyz(2.7670, 1.5593, 10.9794) |
| Luminance | 0.0156 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Midnight Blue
#191970
ΔE00 3.02
Dark Indigo
#1F0954
ΔE00 3.25
Darkblue (survey)
#030764
ΔE00 3.67
Dark Blue
#00035B
ΔE00 4.30
Dark Royal Blue
#02066F
ΔE00 4.67
Night Blue
#040348
ΔE00 5.02
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#1B145F #585F14
analogous
#14325F #1B145F #40145F
triadic
#1B145F #5F1B14 #145F1B
tetradic
#1B145F #5F1432 #585F14 #145F40
square
#1B145F #5F1432 #585F14 #145F40
split-complementary
#1B145F #5F4014 #325F14
monochromatic
#070519 #0D092C #1B145F #291F92 #3829C4
Accessibility & contrast
On white
16.01
#1B145F on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.31
#1B145F on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #1B145F
16.01:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##1B145F | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##1B145F | 1.00 | 16.01 | 1.31 | 16.01 |
| #FFFFFF | 16.01 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.31 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 16.01 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#002561
Deuteranopia (green-blind)
#001E5E
Tritanopia (blue-blind)
#002938
Achromatopsia (no color)
#212121
Design tokens & code
CSS
--color: #1b145f; /* rgb */ color: rgb(27, 20, 95); /* oklch */ color: oklch(26.2% 0.126 277.4);
Tailwind
colors: {
custom: {
50: '#63538d',
500: '#1b145f',
950: '#000000',
},
}SCSS
$custom: #1b145f; $custom-light: #63538d; $custom-dark: #000000;
JSON
{
"hex": "#1b145f",
"rgb": {
"r": 27,
"g": 20,
"b": 95
},
"hsl": {
"h": 245.6,
"s": 65.217,
"l": 22.549
},
"oklch": {
"l": 0.26234,
"c": 0.12563,
"h": 277.4
},
"luminance": 0.0156
}Semantic roles & 50–950 ramp
primary
#1B145F
secondary
#8E9738
accent
#E840D8
background
#F6F4F8
surface
#EBE7F0
border
#C6C3CB
text
#06020C
muted
#7A787D