#181A4B#181A4B
#181A4B is a dark, moderate blue. Relative luminance 0.014; OKLCH L 25.0% C 0.089 H 276.1°. Best body text is #FFFFFF at 16.30:1 contrast (WCAG AA passes).
Color values
| HEX | #181A4B |
|---|---|
| RGB | rgb(24, 26, 75) |
| HSL | hsl(238, 52%, 19%) |
| HSV | hsv(238, 68%, 29%) |
| CMYK | cmyk(68%, 65.3%, 0%, 70.6%) |
| CIE-LAB | lab(12.23, 16.73, -30.79) |
| CIE-LCH | lch(12.23, 35.04, 298.52°) |
| OKLab | oklab(25.01% 0.0094 -0.0885) |
| OKLCH | oklch(25.01% 0.089 276.1) |
| XYZ | xyz(2.0157, 1.4408, 6.8271) |
| Luminance | 0.0144 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Navy Blue (survey)
#001146
ΔE00 3.49
Navy (survey)
#01153E
ΔE00 4.08
Dark Navy
#000435
ΔE00 5.70
Midnight Blue (survey)
#020035
ΔE00 5.98
Very Dark Blue
#000133
ΔE00 6.11
Night Blue
#040348
ΔE00 6.52
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#181A4B #4B4918
analogous
#18344B #181A4B #30184B
triadic
#181A4B #4B181A #1A4B18
tetradic
#181A4B #4B1834 #4B4918 #184B30
square
#181A4B #4B1834 #4B4918 #184B30
split-complementary
#181A4B #4B3018 #344B18
monochromatic
#070817 #090A1D #181A4B #272A79 #363AA8
Accessibility & contrast
On white
16.30
#181A4B on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.29
#181A4B on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #181A4B
16.30:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##181A4B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##181A4B | 1.00 | 16.30 | 1.29 | 16.30 |
| #FFFFFF | 16.30 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.29 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 16.30 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#00224D
Deuteranopia (green-blind)
#001E4A
Tritanopia (blue-blind)
#00262F
Achromatopsia (no color)
#202020
Design tokens & code
CSS
--color: #181a4b; /* rgb */ color: rgb(24, 26, 75); /* oklch */ color: oklch(25.0% 0.089 276.1);
Tailwind
colors: {
custom: {
50: '#5c567e',
500: '#181a4b',
950: '#000000',
},
}SCSS
$custom: #181a4b; $custom-light: #5c567e; $custom-dark: #000000;
JSON
{
"hex": "#181a4b",
"rgb": {
"r": 24,
"g": 26,
"b": 75
},
"hsl": {
"h": 237.647,
"s": 51.515,
"l": 19.412
},
"oklch": {
"l": 0.25005,
"c": 0.08902,
"h": 276.1
},
"luminance": 0.01441
}Semantic roles & 50–950 ramp
primary
#181A4B
secondary
#827F3D
accent
#D54DDB
background
#F5F5F7
surface
#E9E9EE
border
#C5C5C9
text
#04030A
muted
#79787C