#181D6B#181D6B
#181D6B is a dark, vivid blue. Relative luminance 0.021; OKLCH L 28.9% C 0.133 H 271.8°. Best body text is #FFFFFF at 14.72:1 contrast (WCAG AA passes).
Color values
| HEX | #181D6B |
|---|---|
| RGB | rgb(24, 29, 107) |
| HSL | hsl(236, 63%, 26%) |
| HSV | hsv(236, 78%, 42%) |
| CMYK | cmyk(77.6%, 72.9%, 0%, 58%) |
| CIE-LAB | lab(16.18, 27.16, -45.80) |
| CIE-LCH | lch(16.18, 53.25, 300.68°) |
| OKLab | oklab(28.86% 0.0043 -0.1325) |
| OKLCH | oklch(28.86% 0.133 271.8) |
| XYZ | xyz(3.4690, 2.1341, 14.1362) |
| Luminance | 0.0213 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Midnight Blue
#191970
ΔE00 1.72
Darkblue (survey)
#030764
ΔE00 5.33
Dark Royal Blue
#02066F
ΔE00 5.59
Dark Indigo
#1F0954
ΔE00 6.29
Deep Blue
#040273
ΔE00 6.38
Dark Blue
#00035B
ΔE00 6.50
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#181D6B #6B6618
analogous
#18466B #181D6B #3C186B
triadic
#181D6B #6B181D #1D6B18
tetradic
#181D6B #6B1846 #6B6618 #186B3C
square
#181D6B #6B1846 #6B6618 #186B3C
split-complementary
#181D6B #6B3C18 #466B18
monochromatic
#060719 #0D0F39 #181D6B #232B9D #2E38CF
Accessibility & contrast
On white
14.72
#181D6B on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.43
#181D6B on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #181D6B
14.72:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##181D6B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##181D6B | 1.00 | 14.72 | 1.43 | 14.72 |
| #FFFFFF | 14.72 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.43 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 14.72 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#002C6D
Deuteranopia (green-blind)
#00246A
Tritanopia (blue-blind)
#003241
Achromatopsia (no color)
#282828
Design tokens & code
CSS
--color: #181d6b; /* rgb */ color: rgb(24, 29, 107); /* oklch */ color: oklch(28.9% 0.133 271.8);
Tailwind
colors: {
custom: {
50: '#645996',
500: '#181d6b',
950: '#000000',
},
}SCSS
$custom: #181d6b; $custom-light: #645996; $custom-dark: #000000;
JSON
{
"hex": "#181d6b",
"rgb": {
"r": 24,
"g": 29,
"b": 107
},
"hsl": {
"h": 236.386,
"s": 63.359,
"l": 25.686
},
"oklch": {
"l": 0.28858,
"c": 0.13255,
"h": 271.8
},
"luminance": 0.02134
}Semantic roles & 50–950 ramp
primary
#181D6B
secondary
#A19B3E
accent
#DC41E6
background
#F6F5F9
surface
#EBE9F2
border
#C6C5CC
text
#06030D
muted
#7A787E