#383CA0
Closest named color: Blueberry (#464196). oklch(41.7% 0.159 275.3), rgb(56, 60, 160).
Aa
White text reads best on this color (9.04:1).
About this color
#383CA0 is a dark, vivid blue. In OKLCH its lightness is 42%, its chroma 0.159 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.031 away. White text reads best on it, at 9.04:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | vivid (0.159) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.32:1 |
| White text | 9.04:1 |
Values
| HEX | #383CA0 |
| RGB | rgb(56, 60, 160) |
| HSL | hsl(238, 48%, 42%) |
| OKLCH | oklch(41.7% 0.159 275.3) |
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 #383CA0 | 9.04:1 | AAA | Lc -94.7 | Preferred for body text |
| Black text on #383CA0 | 2.32:1 | Fails | Lc 13.7 | Not readable |
| #383CA0 text on white | 9.04:1 | AAA | Lc 90.3 | Preferred for body text |
| #383CA0 text on black | 2.32:1 | Fails | Lc -12.0 | 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
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E4E9FC
oklch(93.6% 0.026 274.1)
-
Step 200
200
#CFD7FC
oklch(88.5% 0.052 275.7)
-
Step 300
300
#AFBCFD
oklch(80.9% 0.093 275.4)
-
Step 400
400
#8797FC
oklch(70.8% 0.148 275.2)
-
Step 500
500
#6C79F9
oklch(63.1% 0.189 275.2)
-
Step 600
600
#575DE8
oklch(55.5% 0.206 275.5)
-
Step 700
700
#484CCA
oklch(49.2% 0.191 275.4)
-
Step 800
800 (this color)
#383CA0
oklch(41.7% 0.159 275.3)
-
Step 900
900
#313782
oklch(37.7% 0.125 275.2)
-
Step 950
950
#1D214C
oklch(27.1% 0.078 275.8)
#383CA0 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) | #004DA3 | 0.053 |
| Deuteranopia (no green cones) | #00449E | 0.046 |
| Tritanopia (no blue cones) | #005568 | 0.132 |
| Achromatopsia (no color) | #494949 | 0.159 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #383CA0
#383CA0
oklch(41.7% 0.159 275.3)
- #5B4B00
#5B4B00
oklch(41.7% 0.086 94.9)
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 #383CA0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.031
- Sapphire #2138AB ΔE 0.035
- Dark Slate Blue #483D8B ΔE 0.043
- Cobalt #1E488F ΔE 0.049
- Indigo Blue #3A18B1 ΔE 0.065
- Majorelle Blue #3F37C9 ΔE 0.067
- Blue Blue #2242C7 ΔE 0.067
- Dusk Blue #26538D ΔE 0.072
Use #383CA0 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.