#383C86
Closest named color: Dark Slate Blue (#483D8B). oklch(39.5% 0.122 277), rgb(56, 60, 134).
Aa
White text reads best on this color (9.72:1).
About this color
#383C86 is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.122 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.027 away. White text reads best on it, at 9.72:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.122) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.15:1 |
| White text | 9.72:1 |
Values
| HEX | #383C86 |
| RGB | rgb(56, 60, 134) |
| HSL | hsl(237, 41%, 37%) |
| OKLCH | oklch(39.5% 0.122 277) |
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 #383C86 | 9.72:1 | AAA | Lc -96.5 | Preferred for body text |
| Black text on #383C86 | 2.15:1 | Fails | Lc 11.7 | Not readable |
| #383C86 text on white | 9.72:1 | AAA | Lc 92.3 | Preferred for body text |
| #383C86 text on black | 2.15:1 | Fails | Lc -10.1 | 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 900.
-
Step 50
50
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E5E9FC
oklch(93.7% 0.026 276.4)
-
Step 200
200
#D0D7FB
oklch(88.5% 0.05 276.6)
-
Step 300
300
#B1BCFC
oklch(81% 0.091 276.6)
-
Step 400
400
#8A96FA
oklch(70.7% 0.146 276.8)
-
Step 500
500
#7078F7
oklch(63% 0.187 276.9)
-
Step 600
600
#5B5DE6
oklch(55.6% 0.203 276.9)
-
Step 700
700
#4B4BC8
oklch(49% 0.189 276.9)
-
Step 800
800
#3D3FA2
oklch(42.7% 0.156 276.6)
-
Step 900
900 (this color)
#383C86
oklch(39.5% 0.122 277)
-
Step 950
950
#1E214B
oklch(27.1% 0.077 276.9)
#383C86 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) | #0F4789 | 0.045 |
| Deuteranopia (no green cones) | #004184 | 0.049 |
| Tritanopia (no blue cones) | #0C4D5B | 0.106 |
| Achromatopsia (no color) | #444444 | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #383C86
#383C86
oklch(39.5% 0.122 277)
- #534600
#534600
oklch(39.6% 0.082 97)
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 #383C86, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.027
- Blueberry #464196 ΔE 0.037
- Cobalt #1E488F ΔE 0.041
- Twilight Blue #0A437A ΔE 0.052
- Light Navy #155084 ΔE 0.062
- Dusk Blue #26538D ΔE 0.064
- Sapphire #2138AB ΔE 0.068
- Twilight #4E518B ΔE 0.070
Use #383C86 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.