#0A4065
Closest named color: Marine Blue (#01386A). oklch(35.9% 0.083 244.9), rgb(10, 64, 101).
Aa
White text reads best on this color (10.85:1).
About this color
#0A4065 is a dark, moderately saturated blue. In OKLCH its lightness is 36%, its chroma 0.083 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.029 away. White text reads best on it, at 10.85:1.
| Hue family | Blues |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.93:1 |
| White text | 10.85:1 |
Values
| HEX | #0A4065 |
| RGB | rgb(10, 64, 101) |
| HSL | hsl(204, 82%, 22%) |
| OKLCH | oklch(35.9% 0.083 244.9) |
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 #0A4065 | 10.85:1 | AAA | Lc -98.7 | Preferred for body text |
| Black text on #0A4065 | 1.93:1 | Fails | Lc 9.2 | Not readable |
| #0A4065 text on white | 10.85:1 | AAA | Lc 94.8 | Preferred for body text |
| #0A4065 text on black | 1.93:1 | Fails | Lc -7.8 | 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 900.
-
Step 50
50
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E0EBF5
oklch(93.5% 0.018 245.4)
-
Step 200
200
#C7DCEF
oklch(88.5% 0.035 245.5)
-
Step 300
300
#9FC6E7
oklch(81% 0.063 244.2)
-
Step 400
400
#69A7DB
oklch(70.7% 0.1 245.2)
-
Step 500
500
#3A90D1
oklch(63.1% 0.128 244.9)
-
Step 600
600
#0479BE
oklch(55.6% 0.138 244.8)
-
Step 700
700
#0065A1
oklch(49% 0.124 245.1)
-
Step 800
800
#015385
oklch(42.7% 0.107 244.9)
-
Step 900
900 (this color)
#0A4065
oklch(35.9% 0.083 244.9)
-
Step 950
950
#0C293E
oklch(27.1% 0.052 243.5)
#0A4065 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) | #2E4167 | 0.034 |
| Deuteranopia (no green cones) | #213964 | 0.025 |
| Tritanopia (no blue cones) | #00494D | 0.058 |
| Achromatopsia (no color) | #3D3D3D | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0A4065
#0A4065
oklch(35.9% 0.083 244.9)
- #593200
#593200
oklch(35.8% 0.081 64.6)
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 #0A4065, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.029
- Twilight Blue #0A437A ΔE 0.036
- Prussian Blue #1D3557 ΔE 0.038
- Dark Grey Blue #29465B ΔE 0.040
- Dark Blue Grey #1F3B4D ΔE 0.042
- Midnight Green #073B4C ΔE 0.045
- Charcoal #264653 ΔE 0.047
- Marine #042E60 ΔE 0.057
Use #0A4065 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.