#384280
Closest named color: Dark Slate Blue (#483D8B). oklch(40.4% 0.104 273.9), rgb(56, 66, 128).
Aa
White text reads best on this color (9.29:1).
About this color
#384280 is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.104 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.034 away. White text reads best on it, at 9.29:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.104) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.25:1 |
| White text | 9.29:1 |
Values
| HEX | #384280 |
| RGB | rgb(56, 66, 128) |
| HSL | hsl(232, 39%, 36%) |
| OKLCH | oklch(40.4% 0.104 273.9) |
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 #384280 | 9.29:1 | AAA | Lc -95.6 | Preferred for body text |
| Black text on #384280 | 2.25:1 | Fails | Lc 12.7 | Not readable |
| #384280 text on white | 9.29:1 | AAA | Lc 91.3 | Preferred for body text |
| #384280 text on black | 2.25:1 | Fails | Lc -11.1 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E6E9F6
oklch(93.6% 0.018 275.6)
-
Step 200
200
#D2D8F0
oklch(88.5% 0.034 274.5)
-
Step 300
300
#B4BEE9
oklch(80.8% 0.062 274.7)
-
Step 400
400
#8D9CDD
oklch(70.6% 0.097 273.7)
-
Step 500
500
#7282D4
oklch(63% 0.125 273.9)
-
Step 600
600
#5C6AC1
oklch(55.5% 0.135 274.3)
-
Step 700
700
#4C58A7
oklch(49.1% 0.126 274.3)
-
Step 800
800 (this color)
#384280
oklch(40.4% 0.104 273.9)
-
Step 900
900
#343D6C
oklch(37.6% 0.081 273.7)
-
Step 950
950
#1F243F
oklch(27% 0.051 274.5)
#384280 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) | #264A82 | 0.028 |
| Deuteranopia (no green cones) | #1D447F | 0.031 |
| Tritanopia (no blue cones) | #14505B | 0.092 |
| Achromatopsia (no color) | #474747 | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #384280
#384280
oklch(40.4% 0.104 273.9)
- #574700
#574700
oklch(40.3% 0.083 94.2)
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 #384280, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.034
- Cobalt #1E488F ΔE 0.037
- Blueberry #464196 ΔE 0.043
- Twilight Blue #0A437A ΔE 0.045
- Light Navy #155084 ΔE 0.048
- Dusk Blue #26538D ΔE 0.050
- Twilight #4E518B ΔE 0.058
- Deep Sea Blue #015482 ΔE 0.061
Use #384280 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.