#384A8A
Closest named color: Dusk Blue (#26538D). oklch(42.8% 0.108 269.6), rgb(56, 74, 138).
Aa
White text reads best on this color (8.35:1).
About this color
#384A8A is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.108 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.029 away. White text reads best on it, at 8.35:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.108) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.51:1 |
| White text | 8.35:1 |
Values
| HEX | #384A8A |
| RGB | rgb(56, 74, 138) |
| HSL | hsl(227, 42%, 38%) |
| OKLCH | oklch(42.8% 0.108 269.6) |
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 #384A8A | 8.35:1 | AAA | Lc -93.2 | Preferred for body text |
| Black text on #384A8A | 2.51:1 | Fails | Lc 15.4 | Dividers and decoration only |
| #384A8A text on white | 8.35:1 | AAA | Lc 88.6 | Fine for body text |
| #384A8A text on black | 2.51:1 | Fails | Lc -13.6 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E5EAF7
oklch(93.7% 0.018 269.1)
-
Step 200
200
#D0D9F1
oklch(88.6% 0.034 269.3)
-
Step 300
300
#B0BFEA
oklch(80.8% 0.063 269.9)
-
Step 400
400
#879EE0
oklch(70.7% 0.101 269)
-
Step 500
500
#6B84D7
oklch(63.1% 0.128 269.8)
-
Step 600
600
#536CC5
oklch(55.6% 0.141 269.6)
-
Step 700
700
#445AAA
oklch(49.2% 0.13 269.6)
-
Step 800
800 (this color)
#384A8A
oklch(42.8% 0.108 269.6)
-
Step 900
900
#303E6E
oklch(37.7% 0.084 269.8)
-
Step 950
950
#1C2540
oklch(27.1% 0.052 268.8)
#384A8A 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) | #2D528C | 0.024 |
| Deuteranopia (no green cones) | #214A89 | 0.025 |
| Tritanopia (no blue cones) | #005863 | 0.096 |
| Achromatopsia (no color) | #4E4E4E | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #384A8A
#384A8A
oklch(42.8% 0.108 269.6)
- #624C00
#624C00
oklch(42.8% 0.087 89.5)
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 #384A8A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.029
- Cobalt #1E488F ΔE 0.030
- Blueberry #464196 ΔE 0.037
- Light Navy #155084 ΔE 0.037
- Twilight #4E518B ΔE 0.039
- Dark Slate Blue #483D8B ΔE 0.040
- Light Navy Blue #2E5A88 ΔE 0.047
- Dusk #4E5481 ΔE 0.049
Use #384A8A 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.