#43367E
Closest named color: Dark Slate Blue (#483D8B). oklch(38.7% 0.117 288), rgb(67, 54, 126).
Aa
White text reads best on this color (10.15:1).
About this color
#43367E is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.117 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.029 away. White text reads best on it, at 10.15:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.117) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.06:1 |
| White text | 10.15:1 |
Values
| HEX | #43367E |
| RGB | rgb(67, 54, 126) |
| HSL | hsl(251, 40%, 35%) |
| OKLCH | oklch(38.7% 0.117 288) |
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 #43367E | 10.15:1 | AAA | Lc -97.4 | Preferred for body text |
| Black text on #43367E | 2.06:1 | Fails | Lc 10.6 | Not readable |
| #43367E text on white | 10.15:1 | AAA | Lc 93.3 | Preferred for body text |
| #43367E text on black | 2.06:1 | Fails | Lc -9.2 | 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
#E8E8FA
oklch(93.6% 0.024 285.9)
-
Step 200
200
#D7D5F8
oklch(88.6% 0.048 288)
-
Step 300
300
#BDB8F7
oklch(80.9% 0.088 287.9)
-
Step 400
400
#9D91F3
oklch(70.8% 0.141 287.9)
-
Step 500
500
#8772EE
oklch(63.1% 0.179 287.9)
-
Step 600
600
#7256DC
oklch(55.5% 0.195 287.9)
-
Step 700
700
#6045BF
oklch(49% 0.182 287.9)
-
Step 800
800
#4E3A9B
oklch(42.7% 0.151 287.7)
-
Step 900
900 (this color)
#43367E
oklch(38.7% 0.117 288)
-
Step 950
950
#251F48
oklch(27% 0.074 287.1)
#43367E 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) | #0F4380 | 0.065 |
| Deuteranopia (no green cones) | #0F3F7C | 0.064 |
| Tritanopia (no blue cones) | #314654 | 0.098 |
| Achromatopsia (no color) | #414141 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #43367E
#43367E
oklch(38.7% 0.117 288)
- #494700
#494700
oklch(38.7% 0.083 107.9)
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 #43367E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.029
- Blueberry #464196 ΔE 0.047
- Cobalt #1E488F ΔE 0.065
- Twilight Blue #0A437A ΔE 0.069
- Rebecca Purple #663399 ΔE 0.078
- Twilight #4E518B ΔE 0.078
- Light Navy #155084 ΔE 0.082
- Dusk Blue #26538D ΔE 0.083
Use #43367E 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.