#443989
Closest named color: Dark Slate Blue (#483D8B). oklch(40.2% 0.128 285.3), rgb(68, 57, 137).
Aa
White text reads best on this color (9.57:1).
About this color
#443989 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.128 and its hue 285°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.013 away. White text reads best on it, at 9.57:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.128) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.19:1 |
| White text | 9.57:1 |
Values
| HEX | #443989 |
| RGB | rgb(68, 57, 137) |
| HSL | hsl(248, 41%, 38%) |
| OKLCH | oklch(40.2% 0.128 285.3) |
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 #443989 | 9.57:1 | AAA | Lc -96.2 | Preferred for body text |
| Black text on #443989 | 2.19:1 | Fails | Lc 12.1 | Not readable |
| #443989 text on white | 9.57:1 | AAA | Lc 91.9 | Preferred for body text |
| #443989 text on black | 2.19:1 | Fails | Lc -10.5 | 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
#F4F4FE
oklch(97% 0.013 286.1)
-
Step 100
100
#E7E8FC
oklch(93.6% 0.027 283.6)
-
Step 200
200
#D5D5FC
oklch(88.5% 0.053 285.3)
-
Step 300
300
#BAB8FD
oklch(80.9% 0.097 285.3)
-
Step 400
400
#9990FC
oklch(70.7% 0.155 285.5)
-
Step 500
500
#8270F9
oklch(63.1% 0.197 285.3)
-
Step 600
600
#6E53E8
oklch(55.6% 0.214 285.4)
-
Step 700
700
#5C42CA
oklch(49.1% 0.2 285.1)
-
Step 800
800
#4B38A3
oklch(42.7% 0.164 285.2)
-
Step 900
900 (this color)
#443989
oklch(40.2% 0.128 285.3)
-
Step 950
950
#241E4C
oklch(27% 0.082 285.5)
#443989 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) | #02478C | 0.068 |
| Deuteranopia (no green cones) | #004387 | 0.068 |
| Tritanopia (no blue cones) | #2C4B5B | 0.108 |
| Achromatopsia (no color) | #454545 | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #443989
#443989
oklch(40.2% 0.128 285.3)
- #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 #443989, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.013
- Blueberry #464196 ΔE 0.029
- Cobalt #1E488F ΔE 0.057
- Rebecca Purple #663399 ΔE 0.067
- Twilight #4E518B ΔE 0.068
- Twilight Blue #0A437A ΔE 0.072
- Sapphire #2138AB ΔE 0.073
- Dusk Blue #26538D ΔE 0.075
Use #443989 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.