#384B8D
Closest named color: Dusk Blue (#26538D). oklch(43.2% 0.111 269.3), rgb(56, 75, 141).
Aa
White text reads best on this color (8.20:1).
About this color
#384B8D is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.111 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.027 away. White text reads best on it, at 8.20:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.111) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.55:1 |
| White text | 8.20:1 |
Values
| HEX | #384B8D |
| RGB | rgb(56, 75, 141) |
| HSL | hsl(227, 43%, 39%) |
| OKLCH | oklch(43.2% 0.111 269.3) |
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 #384B8D | 8.20:1 | AAA | Lc -92.8 | Preferred for body text |
| Black text on #384B8D | 2.55:1 | Fails | Lc 15.8 | Dividers and decoration only |
| #384B8D text on white | 8.20:1 | AAA | Lc 88.2 | Fine for body text |
| #384B8D text on black | 2.55:1 | Fails | Lc -14.0 | 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 800.
-
Step 50
50
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E5EAF7
oklch(93.7% 0.018 269.1)
-
Step 200
200
#CFD9F2
oklch(88.5% 0.036 268.3)
-
Step 300
300
#AFC0EC
oklch(81% 0.065 268.4)
-
Step 400
400
#869EE2
oklch(70.8% 0.104 268.8)
-
Step 500
500
#6984DA
oklch(63.1% 0.133 269.2)
-
Step 600
600
#526CC7
oklch(55.7% 0.144 269.3)
-
Step 700
700
#4259AC
oklch(49% 0.135 269.3)
-
Step 800
800 (this color)
#384B8D
oklch(43.2% 0.111 269.3)
-
Step 900
900
#2F3E6F
oklch(37.7% 0.086 269.2)
-
Step 950
950
#1C2541
oklch(27.1% 0.054 269.1)
#384B8D 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) | #2C538F | 0.024 |
| Deuteranopia (no green cones) | #204B8C | 0.026 |
| Tritanopia (no blue cones) | #005A65 | 0.098 |
| Achromatopsia (no color) | #4F4F4F | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #384B8D
#384B8D
oklch(43.2% 0.111 269.3)
- #644D00
#644D00
oklch(43.2% 0.088 88.8)
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 #384B8D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.027
- Cobalt #1E488F ΔE 0.030
- Blueberry #464196 ΔE 0.036
- Twilight #4E518B ΔE 0.038
- Light Navy #155084 ΔE 0.038
- Dark Slate Blue #483D8B ΔE 0.041
- Light Navy Blue #2E5A88 ΔE 0.046
- Denim Blue #3B5B92 ΔE 0.046
Use #384B8D 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.