#383D91
Closest named color: Blueberry (#464196). oklch(40.6% 0.136 275.9), rgb(56, 61, 145).
Aa
White text reads best on this color (9.35:1).
About this color
#383D91 is a dark, moderately saturated blue. In OKLCH its lightness is 41%, its chroma 0.136 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.026 away. White text reads best on it, at 9.35:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.136) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.24:1 |
| White text | 9.35:1 |
Values
| HEX | #383D91 |
| RGB | rgb(56, 61, 145) |
| HSL | hsl(237, 44%, 39%) |
| OKLCH | oklch(40.6% 0.136 275.9) |
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 #383D91 | 9.35:1 | AAA | Lc -95.6 | Preferred for body text |
| Black text on #383D91 | 2.24:1 | Fails | Lc 12.7 | Not readable |
| #383D91 text on white | 9.35:1 | AAA | Lc 91.3 | Preferred for body text |
| #383D91 text on black | 2.24:1 | 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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E5E9FA
oklch(93.6% 0.023 275.4)
-
Step 200
200
#D1D7F7
oklch(88.5% 0.044 277.1)
-
Step 300
300
#B2BDF5
oklch(80.9% 0.08 275.8)
-
Step 400
400
#8B99EF
oklch(70.7% 0.127 275.7)
-
Step 500
500
#707DEA
oklch(63.1% 0.163 275.6)
-
Step 600
600
#5B63D8
oklch(55.6% 0.177 276.1)
-
Step 700
700
#4B51BC
oklch(49.1% 0.165 276)
-
Step 800
800 (this color)
#383D91
oklch(40.6% 0.136 275.9)
-
Step 900
900
#343A79
oklch(37.8% 0.106 276)
-
Step 950
950
#1E2247
oklch(27% 0.068 276.2)
#383D91 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) | #004A94 | 0.050 |
| Deuteranopia (no green cones) | #00438F | 0.047 |
| Tritanopia (no blue cones) | #005161 | 0.117 |
| Achromatopsia (no color) | #474747 | 0.137 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #383D91
#383D91
oklch(40.6% 0.136 275.9)
- #574800
#574800
oklch(40.5% 0.083 95.4)
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 #383D91, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.026
- Dark Slate Blue #483D8B ΔE 0.027
- Cobalt #1E488F ΔE 0.038
- Sapphire #2138AB ΔE 0.053
- Twilight Blue #0A437A ΔE 0.062
- Dusk Blue #26538D ΔE 0.062
- Light Navy #155084 ΔE 0.065
- Twilight #4E518B ΔE 0.069
Use #383D91 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.