#0A103B#0A103B
#0A103B is a very dark, moderate blue. Relative luminance 0.008; OKLCH L 20.2% C 0.082 H 270.8°. Best body text is #FFFFFF at 18.26:1 contrast (WCAG AA passes).
Color values
| HEX | #0A103B |
|---|---|
| RGB | rgb(10, 16, 59) |
| HSL | hsl(233, 71%, 14%) |
| HSV | hsv(233, 83%, 23%) |
| CMYK | cmyk(83.1%, 72.9%, 0%, 76.9%) |
| CIE-LAB | lab(6.78, 14.89, -28.42) |
| CIE-LCH | lch(6.78, 32.09, 297.64°) |
| OKLab | oklab(20.18% 0.0012 -0.0824) |
| OKLCH | oklch(20.18% 0.082 270.8) |
| XYZ | xyz(1.0996, 0.7508, 4.2238) |
| Luminance | 0.0075 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Dark Navy
#000435
ΔE00 2.45
Very Dark Blue
#000133
ΔE00 2.78
Midnight Blue (survey)
#020035
ΔE00 2.86
Navy (survey)
#01153E
ΔE00 2.88
Navy Blue (survey)
#001146
ΔE00 2.90
Midnight
#03012D
ΔE00 3.15
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#0A103B #3B350A
analogous
#0A283B #0A103B #1C0A3B
triadic
#0A103B #3B0A10 #103B0A
tetradic
#0A103B #3B0A28 #3B350A #0A3B1C
square
#0A103B #3B0A28 #3B350A #0A3B1C
split-complementary
#0A103B #3B1C0A #283B0A
monochromatic
#04071A #04071A #0A103B #131E6F #1C2CA4
Accessibility & contrast
On white
18.26
#0A103B on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
1.15
#0A103B on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #0A103B
18.26:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##0A103B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##0A103B | 1.00 | 18.26 | 1.15 | 18.26 |
| #FFFFFF | 18.26 | 1.00 | 21.00 | 1.00 |
| #000000 | 1.15 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 18.26 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#00173C
Deuteranopia (green-blind)
#00133A
Tritanopia (blue-blind)
#001B23
Achromatopsia (no color)
#151515
Design tokens & code
CSS
--color: #0a103b; /* rgb */ color: rgb(10, 16, 59); /* oklch */ color: oklch(20.2% 0.082 270.8);
Tailwind
colors: {
custom: {
50: '#524e71',
500: '#0a103b',
950: '#000000',
},
}SCSS
$custom: #0a103b; $custom-light: #524e71; $custom-dark: #000000;
JSON
{
"hex": "#0a103b",
"rgb": {
"r": 10,
"g": 16,
"b": 59
},
"hsl": {
"h": 232.653,
"s": 71.014,
"l": 13.529
},
"oklch": {
"l": 0.20184,
"c": 0.08246,
"h": 270.8
},
"luminance": 0.00751
}Semantic roles & 50–950 ramp
primary
#0A103B
secondary
#786F28
accent
#D83AEE
background
#F4F4F6
surface
#E7E7EC
border
#C3C3C7
text
#020108
muted
#78777B