#0A103F#0A103F
#0A103F is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 20.6% C 0.089 H 270.6°. Best body text is #FFFFFF at 18.12:1 contrast (WCAG AA passes).
Color values
| HEX | #0A103F |
|---|---|
| RGB | rgb(10, 16, 63) |
| HSL | hsl(233, 73%, 14%) |
| HSV | hsv(233, 84%, 25%) |
| CMYK | cmyk(84.1%, 74.6%, 0%, 75.3%) |
| CIE-LAB | lab(7.17, 16.79, -30.66) |
| CIE-LCH | lch(7.17, 34.95, 298.71°) |
| OKLab | oklab(20.63% 0.0009 -0.0888) |
| OKLCH | oklch(20.63% 0.089 270.6) |
| XYZ | xyz(1.2074, 0.7939, 4.7913) |
| Luminance | 0.0079 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Navy Blue (survey)
#001146
ΔE00 2.08
Dark Navy
#000435
ΔE00 2.71
Midnight Blue (survey)
#020035
ΔE00 2.84
Very Dark Blue
#000133
ΔE00 3.07
Navy (survey)
#01153E
ΔE00 3.24
Midnight
#03012D
ΔE00 3.93
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#0A103F #3F390A
analogous
#0A2B3F #0A103F #1F0A3F
triadic
#0A103F #3F0A10 #103F0A
tetradic
#0A103F #3F0A2B #3F390A #0A3F1F
square
#0A103F #3F0A2B #3F390A #0A3F1F
split-complementary
#0A103F #3F1F0A #2B3F0A
monochromatic
#04071A #04071A #0A103F #121D74 #1B2BA9
Accessibility & contrast
On white
18.12
#0A103F on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.16
#0A103F on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #0A103F
18.12:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##0A103F | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##0A103F | 1.00 | 18.12 | 1.16 | 18.12 |
| #FFFFFF | 18.12 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.16 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 18.12 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#001840
Deuteranopia (green-blind)
#00133E
Tritanopia (blue-blind)
#001C25
Achromatopsia (no color)
#161616
Design tokens & code
CSS
--color: #0a103f; /* rgb */ color: rgb(10, 16, 63); /* oklch */ color: oklch(20.6% 0.089 270.6);
Tailwind
colors: {
custom: {
50: '#534e75',
500: '#0a103f',
950: '#000000',
},
}SCSS
$custom: #0a103f; $custom-light: #534e75; $custom-dark: #000000;
JSON
{
"hex": "#0a103f",
"rgb": {
"r": 10,
"g": 16,
"b": 63
},
"hsl": {
"h": 233.208,
"s": 72.603,
"l": 14.314
},
"oklch": {
"l": 0.20628,
"c": 0.08881,
"h": 270.6
},
"luminance": 0.00794
}Semantic roles & 50–950 ramp
primary
#0A103F
secondary
#7C7329
accent
#DB38EF
background
#F5F4F7
surface
#E9E7ED
border
#C5C3C8
text
#030108
muted
#78777B