#43438C
Closest named color: Dark Slate Blue (#483D8B). oklch(42.3% 0.118 280.1), rgb(67, 67, 140).
Aa
White text reads best on this color (8.67:1).
About this color
#43438C is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.118 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.016 away. White text reads best on it, at 8.67:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.118) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.42:1 |
| White text | 8.67:1 |
Values
| HEX | #43438C |
| RGB | rgb(67, 67, 140) |
| HSL | hsl(240, 35%, 41%) |
| OKLCH | oklch(42.3% 0.118 280.1) |
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 #43438C | 8.67:1 | AAA | Lc -94.1 | Preferred for body text |
| Black text on #43438C | 2.42:1 | Fails | Lc 14.4 | Not readable |
| #43438C text on white | 8.67:1 | AAA | Lc 89.6 | Fine for body text |
| #43438C text on black | 2.42:1 | Fails | Lc -12.7 | 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
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E7E9F7
oklch(93.7% 0.019 279.5)
-
Step 200
200
#D4D7F3
oklch(88.6% 0.039 280.7)
-
Step 300
300
#B7BCED
oklch(80.8% 0.069 280.2)
-
Step 400
400
#9399E4
oklch(70.8% 0.109 279.7)
-
Step 500
500
#7A7DDC
oklch(63% 0.141 280.2)
-
Step 600
600
#6465CA
oklch(55.7% 0.153 279.8)
-
Step 700
700
#5353AF
oklch(49.1% 0.143 279.8)
-
Step 800
800 (this color)
#43438C
oklch(42.3% 0.118 280.1)
-
Step 900
900
#393A71
oklch(37.7% 0.092 280.2)
-
Step 950
950
#212242
oklch(26.9% 0.059 280.3)
#43438C 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) | #1F4E8F | 0.047 |
| Deuteranopia (no green cones) | #18498A | 0.049 |
| Tritanopia (no blue cones) | #265361 | 0.102 |
| Achromatopsia (no color) | #4B4B4B | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #43438C
#43438C
oklch(42.3% 0.118 280.1)
- #594E00
#594E00
oklch(42.2% 0.088 100)
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 #43438C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.016
- Blueberry #464196 ΔE 0.018
- Cobalt #1E488F ΔE 0.044
- Twilight #4E518B ΔE 0.045
- Dusk Blue #26538D ΔE 0.052
- Dusk #4E5481 ΔE 0.059
- Light Navy #155084 ΔE 0.060
- Denim Blue #3B5B92 ΔE 0.066
Use #43438C 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.