#05355F
Closest named color: Marine Blue (#01386A). oklch(32.4% 0.089 250.8), rgb(5, 53, 95).
Aa
White text reads best on this color (12.49:1).
About this color
#05355F is a dark, moderately saturated blue. In OKLCH its lightness is 32%, its chroma 0.089 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.020 away. White text reads best on it, at 12.49:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.68:1 |
| White text | 12.49:1 |
Values
| HEX | #05355F |
| RGB | rgb(5, 53, 95) |
| HSL | hsl(208, 90%, 20%) |
| OKLCH | oklch(32.4% 0.089 250.8) |
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 #05355F | 12.49:1 | AAA | Lc -101.4 | Preferred for body text |
| Black text on #05355F | 1.68:1 | Fails | Lc 0.0 | Not readable |
| #05355F text on white | 12.49:1 | AAA | Lc 97.9 | Preferred for body text |
| #05355F 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
#E1EBF7
oklch(93.6% 0.019 252.9)
-
Step 200
200
#C8DCF1
oklch(88.6% 0.036 249.5)
-
Step 300
300
#A1C4EB
oklch(80.8% 0.067 251.4)
-
Step 400
400
#6CA5E1
oklch(70.7% 0.107 250.7)
-
Step 500
500
#428DD8
oklch(63.1% 0.136 250.9)
-
Step 600
600
#1C76C6
oklch(55.7% 0.148 250.8)
-
Step 700
700
#0A62AB
oklch(49% 0.138 251)
-
Step 800
800
#10518A
oklch(42.8% 0.113 250.5)
-
Step 900
900 (this color)
#05355F
oklch(32.4% 0.089 250.8)
-
Step 950
950
#0F2841
oklch(27.1% 0.056 250.6)
#05355F 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) | #203861 | 0.026 |
| Deuteranopia (no green cones) | #10305E | 0.015 |
| Tritanopia (no blue cones) | #003F45 | 0.064 |
| Achromatopsia (no color) | #343434 | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #05355F
#05355F
oklch(32.4% 0.089 250.8)
- #4A2D00
#4A2D00
oklch(32.5% 0.07 71.4)
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 #05355F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.020
- Marine #042E60 ΔE 0.022
- Prussian Blue #1D3557 ΔE 0.023
- Midnight Green #073B4C ΔE 0.043
- Dark Blue Grey #1F3B4D ΔE 0.046
- Twilight Blue #0A437A ΔE 0.060
- Gunmetal #293241 ΔE 0.060
- Space Cadet #2B2D42 ΔE 0.061
Use #05355F 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.