#0A1133
Closest named color: Navy Blue (#001146). oklch(19.6% 0.068 270.2), rgb(10, 17, 51).
Aa
White text reads best on this color (18.40:1).
About this color
#0A1133 is a very dark, muted blue. In OKLCH its lightness is 20%, its chroma 0.068 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Navy Blue (#001146), ΔE 0.039 away. White text reads best on it, at 18.40:1.
| Hue family | Blues |
| Lightness | very dark (20%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | Navy Blue (#001146) |
| Black text | 1.14:1 |
| White text | 18.40:1 |
Values
| HEX | #0A1133 |
| RGB | rgb(10, 17, 51) |
| HSL | hsl(230, 67%, 12%) |
| OKLCH | oklch(19.6% 0.068 270.2) |
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 #0A1133 | 18.40:1 | AAA | Lc -107.0 | Preferred for body text |
| Black text on #0A1133 | 1.14:1 | Fails | Lc 0.0 | Not readable |
| #0A1133 text on white | 18.40:1 | AAA | Lc 104.9 | Preferred for body text |
| #0A1133 text on black | 1.14:1 | 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
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E4EAFA
oklch(93.7% 0.023 269.4)
-
Step 200
200
#CED8F7
oklch(88.4% 0.044 271.3)
-
Step 300
300
#ACBFF5
oklch(80.9% 0.079 269.5)
-
Step 400
400
#829BF1
oklch(70.6% 0.129 270.5)
-
Step 500
500
#6480EB
oklch(63% 0.163 270.1)
-
Step 600
600
#4D67DA
oklch(55.7% 0.178 270.1)
-
Step 700
700
#3E55BD
oklch(49.2% 0.165 269.9)
-
Step 800
800
#334699
oklch(42.7% 0.137 270)
-
Step 900
900
#2C3C7A
oklch(37.8% 0.107 269.8)
-
Step 950
950 (this color)
#0A1133
oklch(19.6% 0.068 270.2)
#0A1133 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) | #001634 | 0.019 |
| Deuteranopia (no green cones) | #001232 | 0.016 |
| Tritanopia (no blue cones) | #00191F | 0.056 |
| Achromatopsia (no color) | #141414 | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0A1133
#0A1133
oklch(19.6% 0.068 270.2)
- #1C1400
#1C1400
oklch(19.6% 0.04 90.3)
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 #0A1133, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Blue #001146 ΔE 0.039
- Rich Black #0D1B2A ΔE 0.042
- Dark Navy #000435 ΔE 0.046
- Night Blue #040348 ΔE 0.052
- Very Dark Blue #000133 ΔE 0.057
- Midnight #03012D ΔE 0.057
- Dark Navy Blue #00022E ΔE 0.058
- Rich Navy #001219 ΔE 0.058
Use #0A1133 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.