#43366F
Closest named color: Dark Slate Blue (#483D8B). oklch(37.6% 0.095 291.7), rgb(67, 54, 111).
Aa
White text reads best on this color (10.52:1).
About this color
#43366F is a dark, moderately saturated purple. In OKLCH its lightness is 38%, its chroma 0.095 and its hue 292°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.050 away. White text reads best on it, at 10.52:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.095) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.99:1 |
| White text | 10.52:1 |
Values
| HEX | #43366F |
| RGB | rgb(67, 54, 111) |
| HSL | hsl(254, 35%, 32%) |
| OKLCH | oklch(37.6% 0.095 291.7) |
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 #43366F | 10.52:1 | AAA | Lc -98.2 | Preferred for body text |
| Black text on #43366F | 1.99:1 | Fails | Lc 9.7 | Not readable |
| #43366F text on white | 10.52:1 | AAA | Lc 94.3 | Preferred for body text |
| #43366F text on black | 1.99:1 | Fails | Lc -8.3 | 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
#F5F4FC
oklch(97% 0.011 292)
-
Step 100
100
#EAE8F7
oklch(93.7% 0.02 292.1)
-
Step 200
200
#D9D5F2
oklch(88.5% 0.04 291.9)
-
Step 300
300
#C1B9EC
oklch(81% 0.072 291.9)
-
Step 400
400
#A293E2
oklch(70.7% 0.114 291.9)
-
Step 500
500
#8C76D9
oklch(63% 0.146 291.9)
-
Step 600
600
#775DC7
oklch(55.6% 0.159 291.7)
-
Step 700
700
#644CAC
oklch(49.1% 0.147 291.5)
-
Step 800
800
#523F8B
oklch(42.7% 0.121 292)
-
Step 900
900 (this color)
#43366F
oklch(37.6% 0.095 291.7)
-
Step 950
950
#272041
oklch(26.9% 0.06 291.6)
#43366F 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) | #204071 | 0.053 |
| Deuteranopia (no green cones) | #223E6E | 0.051 |
| Tritanopia (no blue cones) | #38414D | 0.077 |
| Achromatopsia (no color) | #3F3F3F | 0.095 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #43366F
#43366F
oklch(37.6% 0.095 291.7)
- #434500
#434500
oklch(37.6% 0.083 111.6)
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 #43366F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.050
- Blueberry #464196 ΔE 0.069
- Twilight Blue #0A437A ΔE 0.069
- Prussian Blue #1D3557 ΔE 0.073
- Dark Grey Blue #29465B ΔE 0.074
- Marine Blue #01386A ΔE 0.076
- Cobalt #1E488F ΔE 0.077
- Dark Blue Grey #1F3B4D ΔE 0.085
Use #43366F 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.