#101A4B#101A4B
#101A4B is a very dark, moderate blue. Relative luminance 0.014; OKLCH L 24.4% C 0.092 H 269.5°. Best body text is #FFFFFF at 16.52:1 contrast (WCAG AA passes).
Color values
| HEX | #101A4B |
|---|---|
| RGB | rgb(16, 26, 75) |
| HSL | hsl(230, 65%, 18%) |
| HSV | hsv(230, 79%, 29%) |
| CMYK | cmyk(78.7%, 65.3%, 0%, 70.6%) |
| CIE-LAB | lab(11.67, 15.31, -31.72) |
| CIE-LCH | lch(11.67, 35.22, 295.76°) |
| OKLab | oklab(24.44% -0.0007 -0.0915) |
| OKLCH | oklch(24.44% 0.092 269.5) |
| XYZ | xyz(1.8526, 1.3568, 6.8195) |
| Luminance | 0.0136 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Navy Blue (survey)
#001146
ΔE00 2.87
Navy (survey)
#01153E
ΔE00 3.04
Dark Navy
#000435
ΔE00 5.29
Very Dark Blue
#000133
ΔE00 5.76
Midnight Blue (survey)
#020035
ΔE00 5.78
Dark Navy Blue
#00022E
ΔE00 6.25
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#101A4B #4B4110
analogous
#10374B #101A4B #24104B
triadic
#101A4B #4B101A #1A4B10
tetradic
#101A4B #4B1037 #4B4110 #104B24
square
#101A4B #4B1037 #4B4110 #104B24
split-complementary
#101A4B #4B2410 #374B10
monochromatic
#050919 #050919 #101A4B #1B2B7D #263DB0
Accessibility & contrast
On white
16.52
#101A4B on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.27
#101A4B on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #101A4B
16.52:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##101A4B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##101A4B | 1.00 | 16.52 | 1.27 | 16.52 |
| #FFFFFF | 16.52 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.27 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 16.52 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#00224D
Deuteranopia (green-blind)
#001C4A
Tritanopia (blue-blind)
#00262F
Achromatopsia (no color)
#1F1F1F
Design tokens & code
CSS
--color: #101a4b; /* rgb */ color: rgb(16, 26, 75); /* oklch */ color: oklch(24.4% 0.092 269.5);
Tailwind
colors: {
custom: {
50: '#58567e',
500: '#101a4b',
950: '#000000',
},
}SCSS
$custom: #101a4b; $custom-light: #58567e; $custom-dark: #000000;
JSON
{
"hex": "#101a4b",
"rgb": {
"r": 16,
"g": 26,
"b": 75
},
"hsl": {
"h": 229.831,
"s": 64.835,
"l": 17.843
},
"oklch": {
"l": 0.24441,
"c": 0.09151,
"h": 269.5
},
"luminance": 0.01357
}Semantic roles & 50–950 ramp
primary
#101A4B
secondary
#857732
accent
#CB40E8
background
#F5F5F7
surface
#E9E9EE
border
#C5C5C9
text
#04030A
muted
#79787C