#101F3A#101F3A
#101F3A is a very dark, muted blue. Relative luminance 0.014; OKLCH L 24.2% C 0.056 H 261.3°. Best body text is #FFFFFF at 16.42:1 contrast (WCAG AA passes).
Color values
| HEX | #101F3A |
|---|---|
| RGB | rgb(16, 31, 58) |
| HSL | hsl(219, 57%, 15%) |
| HSV | hsv(219, 72%, 23%) |
| CMYK | cmyk(72.4%, 46.6%, 0%, 77.3%) |
| CIE-LAB | lab(11.93, 4.11, -19.39) |
| CIE-LCH | lch(11.93, 19.83, 281.98°) |
| OKLab | oklab(24.2% -0.0085 -0.0552) |
| OKLCH | oklch(24.2% 0.056 261.3) |
| XYZ | xyz(1.4671, 1.3955, 4.1942) |
| Luminance | 0.0140 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Navy Blue
#1B2A4A
ΔE00 3.79
Navy (survey)
#01153E
ΔE00 5.28
Dark
#1B2431
ΔE00 6.80
Navy Blue (survey)
#001146
ΔE00 7.71
Dark Navy Blue
#00022E
ΔE00 7.80
Marine
#042E60
ΔE00 7.88
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#101F3A #3A2B10
analogous
#10343A #101F3A #16103A
triadic
#101F3A #3A101F #1F3A10
tetradic
#101F3A #3A1034 #3A2B10 #103A16
square
#101F3A #3A1034 #3A2B10 #103A16
split-complementary
#101F3A #3A1610 #343A10
monochromatic
#070D18 #070D18 #101F3A #1D396A #2A529A
Accessibility & contrast
On white
16.42
#101F3A on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.28
#101F3A on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #101F3A
16.42:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##101F3A | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##101F3A | 1.00 | 16.42 | 1.28 | 16.42 |
| #FFFFFF | 16.42 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.28 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 16.42 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#13213B
Deuteranopia (green-blind)
#0D1E39
Tritanopia (blue-blind)
#002529
Achromatopsia (no color)
#1F1F1F
Design tokens & code
CSS
--color: #101f3a; /* rgb */ color: rgb(16, 31, 58); /* oklch */ color: oklch(24.2% 0.056 261.3);
Tailwind
colors: {
custom: {
50: '#535a70',
500: '#101f3a',
950: '#000000',
},
}SCSS
$custom: #101f3a; $custom-light: #535a70; $custom-dark: #000000;
JSON
{
"hex": "#101f3a",
"rgb": {
"r": 16,
"g": 31,
"b": 58
},
"hsl": {
"h": 218.571,
"s": 56.757,
"l": 14.51
},
"oklch": {
"l": 0.24203,
"c": 0.05582,
"h": 261.3
},
"luminance": 0.01396
}Semantic roles & 50–950 ramp
primary
#101F3A
secondary
#745C32
accent
#AA48E0
background
#F4F5F6
surface
#E7E9EC
border
#C3C5C7
text
#030307
muted
#78787A