#0A0D1F
Closest named color: Rich Navy (#001219). oklch(16.7% 0.038 274.4), rgb(10, 13, 31).
Aa
White text reads best on this color (19.26:1).
About this color
#0A0D1F is a very dark, muted blue. In OKLCH its lightness is 17%, its chroma 0.038 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.031 away. White text reads best on it, at 19.26:1.
| Hue family | Blues |
| Lightness | very dark (17%) |
| Chroma | muted (0.038) |
| Temperature | cool |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.09:1 |
| White text | 19.26:1 |
Values
| HEX | #0A0D1F |
| RGB | rgb(10, 13, 31) |
| HSL | hsl(231, 51%, 8%) |
| OKLCH | oklch(16.7% 0.038 274.4) |
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 #0A0D1F | 19.26:1 | AAA | Lc -107.5 | Preferred for body text |
| Black text on #0A0D1F | 1.09:1 | Fails | Lc 0.0 | Not readable |
| #0A0D1F text on white | 19.26:1 | AAA | Lc 105.5 | Preferred for body text |
| #0A0D1F text on black | 1.09:1 | 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
#D4D8EA
oklch(88.5% 0.025 275.9)
-
Step 300
300
#B7BFDE
oklch(80.8% 0.045 273.9)
-
Step 400
400
#939ECE
oklch(70.8% 0.071 274.4)
-
Step 500
500
#7985C1
oklch(63.1% 0.092 274.8)
-
Step 600
600
#626EAD
oklch(55.6% 0.099 274.5)
-
Step 700
700
#515C95
oklch(49.2% 0.092 274.2)
-
Step 800
800
#424B79
oklch(42.7% 0.077 274.3)
-
Step 900
900
#383F61
oklch(37.7% 0.059 274.4)
-
Step 950
950 (this color)
#0A0D1F
oklch(16.7% 0.038 274.4)
#0A0D1F 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) | #060F20 | 0.009 |
| Deuteranopia (no green cones) | #050E1F | 0.010 |
| Tritanopia (no blue cones) | #031114 | 0.034 |
| Achromatopsia (no color) | #0E0E0E | 0.038 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0A0D1F
#0A0D1F
oklch(16.7% 0.038 274.4)
- #140E00
#140E00
oklch(16.7% 0.034 92)
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 #0A0D1F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.031
- Almost Black #070D0D ΔE 0.040
- Rich Black #0D1B2A ΔE 0.053
- Midnight #03012D ΔE 0.056
- Dark Navy Blue #00022E ΔE 0.058
- Dark Navy #000435 ΔE 0.059
- Very Dark Blue #000133 ΔE 0.064
- Navy Blue #001146 ΔE 0.079
Use #0A0D1F 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.