#005388
Closest named color: Deep Sea Blue (#015482). oklch(42.9% 0.111 246.2), rgb(0, 83, 136).
Aa
White text reads best on this color (8.09:1).
About this color
#005388 is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.111 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.011 away. White text reads best on it, at 8.09:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.111) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.59:1 |
| White text | 8.09:1 |
Values
| HEX | #005388 |
| RGB | rgb(0, 83, 136) |
| HSL | hsl(203, 100%, 27%) |
| OKLCH | oklch(42.9% 0.111 246.2) |
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 #005388 | 8.09:1 | AAA | Lc -92.1 | Preferred for body text |
| Black text on #005388 | 2.59:1 | Fails | Lc 16.6 | Dividers and decoration only |
| #005388 text on white | 8.09:1 | AAA | Lc 87.4 | Fine for body text |
| #005388 text on black | 2.59:1 | Fails | Lc -14.7 | 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
#E0EBF6
oklch(93.5% 0.019 248)
-
Step 200
200
#C7DCF0
oklch(88.5% 0.036 246.9)
-
Step 300
300
#9FC5E9
oklch(80.8% 0.065 247.2)
-
Step 400
400
#68A7DE
oklch(70.8% 0.104 246.3)
-
Step 500
500
#398FD4
oklch(63% 0.132 246.4)
-
Step 600
600
#0078C1
oklch(55.5% 0.143 246.2)
-
Step 700
700
#0065A4
oklch(49.2% 0.127 246.3)
-
Step 800
800 (this color)
#005388
oklch(42.9% 0.111 246.2)
-
Step 900
900
#10456C
oklch(37.8% 0.086 245.7)
-
Step 950
950
#0C283F
oklch(26.8% 0.055 246.6)
#005388 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) | #39568A | 0.042 |
| Deuteranopia (no green cones) | #254B87 | 0.027 |
| Tritanopia (no blue cones) | #006067 | 0.077 |
| Achromatopsia (no color) | #505050 | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #005388
#005388
oklch(42.9% 0.111 246.2)
- #724300
#724300
oklch(42.9% 0.095 66.2)
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 #005388, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.011
- Light Navy #155084 ΔE 0.011
- Dusk Blue #26538D ΔE 0.022
- Cobalt #1E488F ΔE 0.036
- Light Navy Blue #2E5A88 ΔE 0.037
- Twilight Blue #0A437A ΔE 0.050
- Denim Blue #3B5B92 ΔE 0.053
- Peacock Blue #016795 ΔE 0.061
Use #005388 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.