#0A0F27
Closest named color: Rich Navy (#001219). oklch(17.9% 0.05 271.7), rgb(10, 15, 39).
Aa
White text reads best on this color (18.90:1).
About this color
#0A0F27 is a very dark, muted blue. In OKLCH its lightness is 18%, its chroma 0.050 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.039 away. White text reads best on it, at 18.90:1.
| Hue family | Blues |
| Lightness | very dark (18%) |
| Chroma | muted (0.050) |
| Temperature | cool |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.11:1 |
| White text | 18.90:1 |
Values
| HEX | #0A0F27 |
| RGB | rgb(10, 15, 39) |
| HSL | hsl(230, 59%, 10%) |
| OKLCH | oklch(17.9% 0.05 271.7) |
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 #0A0F27 | 18.90:1 | AAA | Lc -107.3 | Preferred for body text |
| Black text on #0A0F27 | 1.11:1 | Fails | Lc 0.0 | Not readable |
| #0A0F27 text on white | 18.90:1 | AAA | Lc 105.3 | Preferred for body text |
| #0A0F27 text on black | 1.11:1 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E6E9F6
oklch(93.6% 0.018 275.6)
-
Step 200
200
#D1D8EF
oklch(88.4% 0.033 272.2)
-
Step 300
300
#B3BFE7
oklch(80.9% 0.058 272)
-
Step 400
400
#8C9DDC
oklch(70.7% 0.095 272.2)
-
Step 500
500
#7084D2
oklch(63.1% 0.12 271.7)
-
Step 600
600
#596CBF
oklch(55.6% 0.13 271.9)
-
Step 700
700
#495AA5
oklch(49.1% 0.121 271.7)
-
Step 800
800
#3C4A86
oklch(42.8% 0.101 271.7)
-
Step 900
900
#333E6B
oklch(37.7% 0.078 271.8)
-
Step 950
950 (this color)
#0A0F27
oklch(17.9% 0.05 271.7)
#0A0F27 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) | #041228 | 0.013 |
| Deuteranopia (no green cones) | #021026 | 0.015 |
| Tritanopia (no blue cones) | #001419 | 0.042 |
| Achromatopsia (no color) | #111111 | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0A0F27
#0A0F27
oklch(17.9% 0.05 271.7)
- #171100
#171100
oklch(18% 0.037 93.8)
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 #0A0F27, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.039
- Rich Black #0D1B2A ΔE 0.043
- Dark Navy #000435 ΔE 0.051
- Midnight #03012D ΔE 0.054
- Dark Navy Blue #00022E ΔE 0.055
- Almost Black #070D0D ΔE 0.055
- Very Dark Blue #000133 ΔE 0.059
- Navy Blue #001146 ΔE 0.062
Use #0A0F27 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.