#43306F
Closest named color: Dark Slate Blue (#483D8B). oklch(36.5% 0.105 294.5), rgb(67, 48, 111).
Aa
White text reads best on this color (11.10:1).
About this color
#43306F is a dark, moderately saturated purple. In OKLCH its lightness is 36%, its chroma 0.105 and its hue 295°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.056 away. White text reads best on it, at 11.10:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.105) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.89:1 |
| White text | 11.10:1 |
Values
| HEX | #43306F |
| RGB | rgb(67, 48, 111) |
| HSL | hsl(258, 40%, 31%) |
| OKLCH | oklch(36.5% 0.105 294.5) |
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 #43306F | 11.10:1 | AAA | Lc -99.3 | Preferred for body text |
| Black text on #43306F | 1.89:1 | Fails | Lc 8.5 | Not readable |
| #43306F text on white | 11.10:1 | AAA | Lc 95.4 | Preferred for body text |
| #43306F text on black | 1.89:1 | Fails | Lc 0.0 | 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
#F6F4FC
oklch(97.1% 0.011 297.6)
-
Step 100
100
#EAE7F8
oklch(93.5% 0.023 294.1)
-
Step 200
200
#DAD4F4
oklch(88.5% 0.044 294.1)
-
Step 300
300
#C3B7EF
oklch(80.8% 0.079 294.4)
-
Step 400
400
#A690E7
oklch(70.7% 0.126 294.6)
-
Step 500
500
#9172E0
oklch(63.1% 0.161 294.3)
-
Step 600
600
#7C57CD
oklch(55.5% 0.175 294.4)
-
Step 700
700
#6947B2
oklch(49.2% 0.163 294.3)
-
Step 800
800
#563B90
oklch(42.8% 0.135 294.7)
-
Step 900
900 (this color)
#43306F
oklch(36.5% 0.105 294.5)
-
Step 950
950
#291F43
oklch(27.1% 0.065 294.4)
#43306F 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) | #143C71 | 0.067 |
| Deuteranopia (no green cones) | #193B6E | 0.063 |
| Tritanopia (no blue cones) | #383D4A | 0.085 |
| Achromatopsia (no color) | #3C3C3C | 0.105 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #43306F
#43306F
oklch(36.5% 0.105 294.5)
- #3E4300
#3E4300
oklch(36.6% 0.083 114.5)
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 #43306F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.056
- Prussian Blue #1D3557 ΔE 0.075
- Blueberry #464196 ΔE 0.075
- Twilight Blue #0A437A ΔE 0.078
- Marine Blue #01386A ΔE 0.079
- Royal Purple #4B006E ΔE 0.080
- Indigo #4B0082 ΔE 0.080
- Dark Grey Blue #29465B ΔE 0.087
Use #43306F 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.