#443C81
Closest named color: Dark Slate Blue (#483D8B). oklch(40.2% 0.112 285.5), rgb(68, 60, 129).
Aa
White text reads best on this color (9.50:1).
About this color
#443C81 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.112 and its hue 285°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.018 away. White text reads best on it, at 9.50:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.112) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.20:1 |
| White text | 9.50:1 |
Values
| HEX | #443C81 |
| RGB | rgb(68, 60, 129) |
| HSL | hsl(247, 37%, 37%) |
| OKLCH | oklch(40.2% 0.112 285.5) |
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 #443C81 | 9.50:1 | AAA | Lc -96.1 | Preferred for body text |
| Black text on #443C81 | 2.20:1 | Fails | Lc 12.2 | Not readable |
| #443C81 text on white | 9.50:1 | AAA | Lc 91.8 | Preferred for body text |
| #443C81 text on black | 2.20:1 | Fails | Lc -10.6 | 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
#E8E8FA
oklch(93.6% 0.024 285.9)
-
Step 200
200
#D5D5F8
oklch(88.4% 0.048 285.4)
-
Step 300
300
#BBB9F5
oklch(80.8% 0.084 285.9)
-
Step 400
400
#9993F0
oklch(70.7% 0.134 285.4)
-
Step 500
500
#8275EB
oklch(63.1% 0.172 285.4)
-
Step 600
600
#6D5ADA
oklch(55.5% 0.188 285.3)
-
Step 700
700
#5C49BD
oklch(49.1% 0.174 285.5)
-
Step 800
800
#4B3D99
oklch(42.8% 0.144 285.5)
-
Step 900
900 (this color)
#443C81
oklch(40.2% 0.112 285.5)
-
Step 950
950
#242047
oklch(27.1% 0.07 285.3)
#443C81 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) | #1C4883 | 0.055 |
| Deuteranopia (no green cones) | #1A447F | 0.054 |
| Tritanopia (no blue cones) | #304B58 | 0.096 |
| Achromatopsia (no color) | #464646 | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #443C81
#443C81
oklch(40.2% 0.112 285.5)
- #4F4A00
#4F4A00
oklch(40.1% 0.085 105.2)
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 #443C81, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.018
- Blueberry #464196 ΔE 0.036
- Cobalt #1E488F ΔE 0.055
- Twilight #4E518B ΔE 0.062
- Twilight Blue #0A437A ΔE 0.065
- Dusk Blue #26538D ΔE 0.069
- Light Navy #155084 ΔE 0.070
- Dusk #4E5481 ΔE 0.072
Use #443C81 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.