#06365B
Closest named color: Prussian Blue (#1D3557). oklch(32.4% 0.081 247.8), rgb(6, 54, 91).
Aa
White text reads best on this color (12.45:1).
About this color
#06365B is a dark, moderately saturated blue. In OKLCH its lightness is 32%, its chroma 0.081 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.019 away. White text reads best on it, at 12.45:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.68:1 |
| White text | 12.45:1 |
Values
| HEX | #06365B |
| RGB | rgb(6, 54, 91) |
| HSL | hsl(206, 88%, 19%) |
| OKLCH | oklch(32.4% 0.081 247.8) |
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 #06365B | 12.45:1 | AAA | Lc -101.4 | Preferred for body text |
| Black text on #06365B | 1.68:1 | Fails | Lc 0.0 | Not readable |
| #06365B text on white | 12.45:1 | AAA | Lc 97.9 | Preferred for body text |
| #06365B text on black | 1.68:1 | 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 900.
-
Step 50
50
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E1EBF5
oklch(93.5% 0.017 248)
-
Step 200
200
#C8DCEF
oklch(88.5% 0.034 246.8)
-
Step 300
300
#A2C5E7
oklch(80.9% 0.061 247.8)
-
Step 400
400
#6EA6DB
oklch(70.7% 0.098 248)
-
Step 500
500
#448FD1
oklch(63.2% 0.125 247.8)
-
Step 600
600
#1E77BE
oklch(55.5% 0.136 248.1)
-
Step 700
700
#0D64A4
oklch(49.1% 0.126 248)
-
Step 800
800
#115285
oklch(42.7% 0.105 247.9)
-
Step 900
900 (this color)
#06365B
oklch(32.4% 0.081 247.8)
-
Step 950
950
#0F283E
oklch(26.9% 0.052 247.6)
#06365B 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) | #24385D | 0.029 |
| Deuteranopia (no green cones) | #17315A | 0.018 |
| Tritanopia (no blue cones) | #003F44 | 0.058 |
| Achromatopsia (no color) | #343434 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #06365B
#06365B
oklch(32.4% 0.081 247.8)
- #4B2C00
#4B2C00
oklch(32.5% 0.071 68.8)
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 #06365B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.019
- Marine Blue #01386A ΔE 0.026
- Marine #042E60 ΔE 0.028
- Midnight Green #073B4C ΔE 0.035
- Dark Blue Grey #1F3B4D ΔE 0.039
- Gunmetal #293241 ΔE 0.054
- Space Cadet #2B2D42 ΔE 0.057
- Twilight Blue #0A437A ΔE 0.063
Use #06365B 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.