#05528C
Closest named color: Light Navy (#155084). oklch(43% 0.116 249.2), rgb(5, 82, 140).
Aa
White text reads best on this color (8.10:1).
About this color
#05528C is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.116 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.014 away. White text reads best on it, at 8.10:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.116) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.59:1 |
| White text | 8.10:1 |
Values
| HEX | #05528C |
| RGB | rgb(5, 82, 140) |
| HSL | hsl(206, 93%, 28%) |
| OKLCH | oklch(43% 0.116 249.2) |
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 #05528C | 8.10:1 | AAA | Lc -92.2 | Preferred for body text |
| Black text on #05528C | 2.59:1 | Fails | Lc 16.5 | Dividers and decoration only |
| #05528C text on white | 8.10:1 | AAA | Lc 87.5 | Fine for body text |
| #05528C text on black | 2.59:1 | Fails | Lc -14.6 | 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 800.
-
Step 50
50
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E0EBF7
oklch(93.5% 0.02 250.4)
-
Step 200
200
#C7DCF2
oklch(88.6% 0.038 249.5)
-
Step 300
300
#9FC5EB
oklch(80.9% 0.068 248.7)
-
Step 400
400
#69A6E2
oklch(70.8% 0.109 249.2)
-
Step 500
500
#3B8ED9
oklch(63.1% 0.139 249.1)
-
Step 600
600
#0976C7
oklch(55.5% 0.152 249.4)
-
Step 700
700
#0063A9
oklch(49% 0.136 249.1)
-
Step 800
800 (this color)
#05528C
oklch(43% 0.116 249.2)
-
Step 900
900
#12446F
oklch(37.8% 0.09 249)
-
Step 950
950
#0D2841
oklch(27% 0.057 249.3)
#05528C 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) | #35568E | 0.037 |
| Deuteranopia (no green cones) | #1F4B8B | 0.022 |
| Tritanopia (no blue cones) | #006068 | 0.083 |
| Achromatopsia (no color) | #505050 | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #05528C
#05528C
oklch(43% 0.116 249.2)
- #704500
#704500
oklch(43% 0.093 69.7)
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 #05528C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.014
- Deep Sea Blue #015482 ΔE 0.019
- Dusk Blue #26538D ΔE 0.019
- Cobalt #1E488F ΔE 0.030
- Light Navy Blue #2E5A88 ΔE 0.039
- Twilight Blue #0A437A ΔE 0.050
- Denim Blue #3B5B92 ΔE 0.052
- Peacock Blue #016795 ΔE 0.062
Use #05528C 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.