#0A1234
Closest named color: Navy Blue (#001146). oklch(19.9% 0.068 269.3), rgb(10, 18, 52).
Aa
White text reads best on this color (18.27:1).
About this color
#0A1234 is a very dark, muted blue. In OKLCH its lightness is 20%, its chroma 0.068 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Navy Blue (#001146), ΔE 0.037 away. White text reads best on it, at 18.27:1.
| 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 | 18.27:1 |
Values
| HEX | #0A1234 |
| RGB | rgb(10, 18, 52) |
| HSL | hsl(229, 68%, 12%) |
| OKLCH | oklch(19.9% 0.068 269.3) |
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 #0A1234 | 18.27:1 | AAA | Lc -106.9 | Preferred for body text |
| Black text on #0A1234 | 1.14:1 | Fails | Lc 0.0 | Not readable |
| #0A1234 text on white | 18.27:1 | AAA | Lc 104.8 | Preferred for body text |
| #0A1234 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
#E3EAFA
oklch(93.6% 0.023 266.9)
-
Step 200
200
#CDD9F8
oklch(88.6% 0.045 268.7)
-
Step 300
300
#ACBFF5
oklch(80.9% 0.079 269.5)
-
Step 400
400
#809CF1
oklch(70.7% 0.129 269.1)
-
Step 500
500
#6281EC
oklch(63.2% 0.164 269.2)
-
Step 600
600
#4B67DA
oklch(55.6% 0.178 269.5)
-
Step 700
700
#3C55BD
oklch(49.1% 0.166 269.2)
-
Step 800
800
#324699
oklch(42.7% 0.137 269.5)
-
Step 900
900
#2B3C7A
oklch(37.7% 0.107 269.2)
-
Step 950
950 (this color)
#0A1234
oklch(19.9% 0.068 269.3)
#0A1234 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) | #001735 | 0.019 |
| Deuteranopia (no green cones) | #001333 | 0.015 |
| Tritanopia (no blue cones) | #001A20 | 0.055 |
| Achromatopsia (no color) | #151515 | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0A1234
#0A1234
oklch(19.9% 0.068 269.3)
- #1D1500
#1D1500
oklch(20% 0.041 90.8)
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 #0A1234, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Blue #001146 ΔE 0.037
- Rich Black #0D1B2A ΔE 0.040
- Dark Navy #000435 ΔE 0.049
- Night Blue #040348 ΔE 0.053
- Rich Navy #001219 ΔE 0.060
- Very Dark Blue #000133 ΔE 0.060
- Midnight #03012D ΔE 0.061
- Dark Navy Blue #00022E ΔE 0.061
Use #0A1234 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.