#181548#181548
#181548 is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 23.7% C 0.092 H 279.4°. Best body text is #FFFFFF at 16.94:1 contrast (WCAG AA passes).
Color values
| HEX | #181548 |
|---|---|
| RGB | rgb(24, 21, 72) |
| HSL | hsl(244, 55%, 18%) |
| HSV | hsv(244, 71%, 28%) |
| CMYK | cmyk(66.7%, 70.8%, 0%, 71.8%) |
| CIE-LAB | lab(10.54, 19.21, -31.45) |
| CIE-LCH | lch(10.54, 36.85, 301.42°) |
| OKLab | oklab(23.68% 0.015 -0.0905) |
| OKLCH | oklch(23.68% 0.092 279.4) |
| XYZ | xyz(1.8142, 1.1983, 6.2653) |
| Luminance | 0.0120 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Navy Blue (survey)
#001146
ΔE00 3.25
Navy (survey)
#01153E
ΔE00 4.77
Midnight Blue (survey)
#020035
ΔE00 5.12
Dark Navy
#000435
ΔE00 5.17
Night Blue
#040348
ΔE00 5.19
Dark Indigo
#1F0954
ΔE00 5.38
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#181548 #454815
analogous
#152B48 #181548 #311548
triadic
#181548 #481815 #154818
tetradic
#181548 #48152B #454815 #154831
square
#181548 #48152B #454815 #154831
split-complementary
#181548 #483115 #2B4815
monochromatic
#080718 #080719 #181548 #282377 #3831A7
Accessibility & contrast
On white
16.94
#181548 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.24
#181548 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #181548
16.94:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##181548 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##181548 | 1.00 | 16.94 | 1.24 | 16.94 |
| #FFFFFF | 16.94 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.24 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 16.94 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#001F4A
Deuteranopia (green-blind)
#001B47
Tritanopia (blue-blind)
#00222C
Achromatopsia (no color)
#1D1D1D
Design tokens & code
CSS
--color: #181548; /* rgb */ color: rgb(24, 21, 72); /* oklch */ color: oklch(23.7% 0.092 279.4);
Tailwind
colors: {
custom: {
50: '#5b527b',
500: '#181548',
950: '#000000',
},
}SCSS
$custom: #181548; $custom-light: #5b527b; $custom-dark: #000000;
JSON
{
"hex": "#181548",
"rgb": {
"r": 24,
"g": 21,
"b": 72
},
"hsl": {
"h": 243.529,
"s": 54.839,
"l": 18.235
},
"oklch": {
"l": 0.23681,
"c": 0.09173,
"h": 279.4
},
"luminance": 0.01198
}Semantic roles & 50–950 ramp
primary
#181548
secondary
#7C8039
accent
#DE4AD5
background
#F5F4F7
surface
#E9E7EE
border
#C5C3C9
text
#040209
muted
#79787B