#443F73
Closest named color: Dark Slate Blue (#483D8B). oklch(39.8% 0.086 286.2), rgb(68, 63, 115).
Aa
White text reads best on this color (9.52:1).
About this color
#443F73 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.086 and its hue 286°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.042 away. White text reads best on it, at 9.52:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.086) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.20:1 |
| White text | 9.52:1 |
Values
| HEX | #443F73 |
| RGB | rgb(68, 63, 115) |
| HSL | hsl(246, 29%, 35%) |
| OKLCH | oklch(39.8% 0.086 286.2) |
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 #443F73 | 9.52:1 | AAA | Lc -96.2 | Preferred for body text |
| Black text on #443F73 | 2.20:1 | Fails | Lc 12.0 | Not readable |
| #443F73 text on white | 9.52:1 | AAA | Lc 91.9 | Preferred for body text |
| #443F73 text on black | 2.20:1 | Fails | Lc -10.4 | 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
#F5F5FB
oklch(97.2% 0.008 286.3)
-
Step 100
100
#E8E8F6
oklch(93.5% 0.019 286)
-
Step 200
200
#D7D6F0
oklch(88.5% 0.036 287.4)
-
Step 300
300
#BCBBE9
oklch(80.8% 0.065 285.9)
-
Step 400
400
#9B97DE
oklch(70.7% 0.103 286)
-
Step 500
500
#847CD5
oklch(63.2% 0.131 286.1)
-
Step 600
600
#6E63C2
oklch(55.6% 0.143 286)
-
Step 700
700
#5C52A8
oklch(49.2% 0.133 285.7)
-
Step 800
800
#4B4388
oklch(42.7% 0.111 286)
-
Step 900
900 (this color)
#443F73
oklch(39.8% 0.086 286.2)
-
Step 950
950
#242240
oklch(27% 0.055 285.1)
#443F73 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) | #2D4775 | 0.037 |
| Deuteranopia (no green cones) | #2C4472 | 0.036 |
| Tritanopia (no blue cones) | #374953 | 0.073 |
| Achromatopsia (no color) | #454545 | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #443F73
#443F73
oklch(39.8% 0.086 286.2)
- #4D4A00
#4D4A00
oklch(39.9% 0.086 107)
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 #443F73, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.042
- Blueberry #464196 ΔE 0.058
- Twilight Blue #0A437A ΔE 0.062
- Twilight #4E518B ΔE 0.063
- Dark Grey Blue #29465B ΔE 0.064
- Cobalt #1E488F ΔE 0.064
- Dusk #4E5481 ΔE 0.065
- Light Navy #155084 ΔE 0.067
Use #443F73 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.