#0A0B1E
Closest named color: Rich Navy (#001219). oklch(16.1% 0.04 278.7), rgb(10, 11, 30).
Aa
White text reads best on this color (19.45:1).
About this color
#0A0B1E is a very dark, muted blue. In OKLCH its lightness is 16%, its chroma 0.040 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.035 away. White text reads best on it, at 19.45:1.
| Hue family | Blues |
| Lightness | very dark (16%) |
| Chroma | muted (0.040) |
| Temperature | cool |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.07:1 |
| White text | 19.45:1 |
Values
| HEX | #0A0B1E |
| RGB | rgb(10, 11, 30) |
| HSL | hsl(237, 50%, 8%) |
| OKLCH | oklch(16.1% 0.04 278.7) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #0A0B1E | 19.45:1 | AAA | Lc -107.6 | Preferred for body text |
| Black text on #0A0B1E | 1.07:1 | Fails | Lc 0.0 | Not readable |
| #0A0B1E text on white | 19.45:1 | AAA | Lc 105.6 | Preferred for body text |
| #0A0B1E text on black | 1.07:1 | Fails | Lc 0.0 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 950.
-
Step 50
50
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E7E9F3
oklch(93.5% 0.014 277.1)
-
Step 200
200
#D5D8EB
oklch(88.6% 0.026 278.7)
-
Step 300
300
#B9BEDF
oklch(80.8% 0.047 278.5)
-
Step 400
400
#969CCF
oklch(70.7% 0.075 279.1)
-
Step 500
500
#7D83C3
oklch(63.1% 0.096 279.1)
-
Step 600
600
#666CAF
oklch(55.6% 0.104 278.6)
-
Step 700
700
#555A97
oklch(49.1% 0.097 278.6)
-
Step 800
800
#454A7A
oklch(42.7% 0.079 277.9)
-
Step 900
900
#3A3E62
oklch(37.7% 0.062 278.2)
-
Step 950
950 (this color)
#0A0B1E
oklch(16.1% 0.04 278.7)
#0A0B1E with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #040E1F | 0.015 |
| Deuteranopia (no green cones) | #030C1E | 0.015 |
| Tritanopia (no blue cones) | #040F12 | 0.036 |
| Achromatopsia (no color) | #0D0D0D | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0A0B1E
#0A0B1E
oklch(16.1% 0.04 278.7)
- #110D00
#110D00
oklch(15.9% 0.033 97.6)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #0A0B1E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.035
- Almost Black #070D0D ΔE 0.040
- Midnight #03012D ΔE 0.053
- Dark Navy Blue #00022E ΔE 0.055
- Dark Navy #000435 ΔE 0.058
- Rich Black #0D1B2A ΔE 0.060
- Very Dark Blue #000133 ΔE 0.062
- Very Dark Brown #1D0200 ΔE 0.080
Use #0A0B1E in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.