#383679
Closest named color: Dark Slate Blue (#483D8B). oklch(37.3% 0.111 280.9), rgb(56, 54, 121).
Aa
White text reads best on this color (10.64:1).
About this color
#383679 is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.111 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.045 away. White text reads best on it, at 10.64:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.111) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.97:1 |
| White text | 10.64:1 |
Values
| HEX | #383679 |
| RGB | rgb(56, 54, 121) |
| HSL | hsl(242, 38%, 34%) |
| OKLCH | oklch(37.3% 0.111 280.9) |
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 #383679 | 10.64:1 | AAA | Lc -98.4 | Preferred for body text |
| Black text on #383679 | 1.97:1 | Fails | Lc 9.5 | Not readable |
| #383679 text on white | 10.64:1 | AAA | Lc 94.5 | Preferred for body text |
| #383679 text on black | 1.97:1 | Fails | Lc -8.1 | 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
#F4F5FD
oklch(97.2% 0.011 280.5)
-
Step 100
100
#E6E8FA
oklch(93.5% 0.024 280.9)
-
Step 200
200
#D3D6F8
oklch(88.5% 0.047 281.4)
-
Step 300
300
#B6BBF6
oklch(80.9% 0.083 280.6)
-
Step 400
400
#9295F1
oklch(70.6% 0.133 281)
-
Step 500
500
#7A78EC
oklch(63% 0.17 281.1)
-
Step 600
600
#655EDB
oklch(55.7% 0.185 281.1)
-
Step 700
700
#544CBE
oklch(49% 0.173 281.1)
-
Step 800
800
#44409A
oklch(42.8% 0.142 280.5)
-
Step 900
900 (this color)
#383679
oklch(37.3% 0.111 280.9)
-
Step 950
950
#212148
oklch(27.1% 0.071 280.6)
#383679 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) | #11417B | 0.048 |
| Deuteranopia (no green cones) | #093C78 | 0.050 |
| Tritanopia (no blue cones) | #1E4552 | 0.095 |
| Achromatopsia (no color) | #3E3E3E | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #383679
#383679
oklch(37.3% 0.111 280.9)
- #4A4100
#4A4100
oklch(37.3% 0.078 100.4)
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 #383679, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.045
- Twilight Blue #0A437A ΔE 0.054
- Blueberry #464196 ΔE 0.060
- Cobalt #1E488F ΔE 0.061
- Marine Blue #01386A ΔE 0.063
- Prussian Blue #1D3557 ΔE 0.072
- Light Navy #155084 ΔE 0.076
- Dark Grey Blue #29465B ΔE 0.079
Use #383679 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.