#0A1C3D
Closest named color: Rich Black (#0D1B2A). oklch(23.3% 0.068 261.3), rgb(10, 28, 61).
Aa
White text reads best on this color (16.84:1).
About this color
#0A1C3D is a very dark, muted blue. In OKLCH its lightness is 23%, its chroma 0.068 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.037 away. White text reads best on it, at 16.84:1.
| Hue family | Blues |
| Lightness | very dark (23%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.24:1 |
| White text | 16.84:1 |
Values
| HEX | #0A1C3D |
| RGB | rgb(10, 28, 61) |
| HSL | hsl(219, 72%, 14%) |
| OKLCH | oklch(23.3% 0.068 261.3) |
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 #0A1C3D | 16.84:1 | AAA | Lc -106.0 | Preferred for body text |
| Black text on #0A1C3D | 1.24:1 | Fails | Lc 0.0 | Not readable |
| #0A1C3D text on white | 16.84:1 | AAA | Lc 103.6 | Preferred for body text |
| #0A1C3D text on black | 1.24:1 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EAFA
oklch(93.5% 0.024 262.1)
-
Step 200
200
#C9DAF7
oklch(88.5% 0.044 261.2)
-
Step 300
300
#A4C2F5
oklch(81% 0.08 260.9)
-
Step 400
400
#73A0F0
oklch(70.7% 0.128 261.3)
-
Step 500
500
#4E86EB
oklch(63.1% 0.163 261.2)
-
Step 600
600
#326DDA
oklch(55.7% 0.178 261.3)
-
Step 700
700
#245ABD
oklch(49.1% 0.166 261.3)
-
Step 800
800
#204A99
oklch(42.7% 0.138 261.5)
-
Step 900
900
#1F3F79
oklch(37.7% 0.106 261.2)
-
Step 950
950 (this color)
#0A1C3D
oklch(23.3% 0.068 261.3)
#0A1C3D 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) | #0A203E | 0.013 |
| Deuteranopia (no green cones) | #021B3C | 0.011 |
| Tritanopia (no blue cones) | #002429 | 0.054 |
| Achromatopsia (no color) | #1D1D1D | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0A1C3D
#0A1C3D
oklch(23.3% 0.068 261.3)
- #291B00
#291B00
oklch(23.4% 0.048 81.8)
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 #0A1C3D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.037
- Navy Blue #001146 ΔE 0.041
- Oxford Blue #1B263B ΔE 0.044
- Dark #1B2431 ΔE 0.047
- Jet #212529 ΔE 0.065
- Dark Indigo #1F0954 ΔE 0.067
- Night Blue #040348 ΔE 0.068
- Dark Navy #000435 ΔE 0.078
Use #0A1C3D 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.