#43347B
Closest named color: Dark Slate Blue (#483D8B). oklch(38.1% 0.116 289.5), rgb(67, 52, 123).
Aa
White text reads best on this color (10.41:1).
About this color
#43347B is a dark, moderately saturated purple. In OKLCH its lightness is 38%, its chroma 0.116 and its hue 289°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.035 away. White text reads best on it, at 10.41:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.116) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.01:1 |
| White text | 10.41:1 |
Values
| HEX | #43347B |
| RGB | rgb(67, 52, 123) |
| HSL | hsl(253, 41%, 34%) |
| OKLCH | oklch(38.1% 0.116 289.5) |
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 #43347B | 10.41:1 | AAA | Lc -98.0 | Preferred for body text |
| Black text on #43347B | 2.01:1 | Fails | Lc 10.0 | Not readable |
| #43347B text on white | 10.41:1 | AAA | Lc 93.9 | Preferred for body text |
| #43347B text on black | 2.01:1 | Fails | Lc -8.6 | 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
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#E9E7FA
oklch(93.5% 0.026 290.7)
-
Step 200
200
#D8D4F8
oklch(88.4% 0.049 290.4)
-
Step 300
300
#BFB8F6
oklch(81% 0.087 289.5)
-
Step 400
400
#9F90F1
oklch(70.6% 0.139 289.4)
-
Step 500
500
#8A71EC
oklch(63.1% 0.178 289.7)
-
Step 600
600
#7556DA
oklch(55.6% 0.193 289.4)
-
Step 700
700
#6345BD
oklch(49.1% 0.179 289.6)
-
Step 800
800
#503A99
oklch(42.7% 0.148 289.2)
-
Step 900
900 (this color)
#43347B
oklch(38.1% 0.116 289.5)
-
Step 950
950
#261E47
oklch(26.8% 0.074 289.5)
#43347B 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) | #0D417D | 0.067 |
| Deuteranopia (no green cones) | #103E79 | 0.065 |
| Tritanopia (no blue cones) | #324352 | 0.095 |
| Achromatopsia (no color) | #404040 | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #43347B
#43347B
oklch(38.1% 0.116 289.5)
- #464600
#464600
oklch(38.2% 0.083 109.8)
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 #43347B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.035
- Blueberry #464196 ΔE 0.054
- Cobalt #1E488F ΔE 0.070
- Twilight Blue #0A437A ΔE 0.071
- Rebecca Purple #663399 ΔE 0.081
- Marine Blue #01386A ΔE 0.082
- Indigo #4B0082 ΔE 0.082
- Twilight #4E518B ΔE 0.084
Use #43347B 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.