#43355B
Closest named color: Prussian Blue (#1D3557). oklch(36.2% 0.066 300.1), rgb(67, 53, 91).
Aa
White text reads best on this color (11.05:1).
About this color
#43355B is a dark, muted purple. In OKLCH its lightness is 36%, its chroma 0.066 and its hue 300°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.060 away. White text reads best on it, at 11.05:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | muted (0.066) |
| Temperature | in between |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.89:1 |
| White text | 11.05:1 |
Values
| HEX | #43355B |
| RGB | rgb(67, 53, 91) |
| HSL | hsl(262, 26%, 28%) |
| OKLCH | oklch(36.2% 0.066 300.1) |
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 #43355B | 11.05:1 | AAA | Lc -99.3 | Preferred for body text |
| Black text on #43355B | 1.89:1 | Fails | Lc 8.4 | Not readable |
| #43355B text on white | 11.05:1 | AAA | Lc 95.5 | Preferred for body text |
| #43355B 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
#F6F4F9
oklch(97% 0.007 304.2)
-
Step 100
100
#EBE8F2
oklch(93.6% 0.014 299.8)
-
Step 200
200
#DCD5E9
oklch(88.5% 0.028 301.7)
-
Step 300
300
#C5BADC
oklch(80.9% 0.049 300.1)
-
Step 400
400
#A896CB
oklch(70.8% 0.078 300)
-
Step 500
500
#937BBE
oklch(63.1% 0.102 300)
-
Step 600
600
#7E63AA
oklch(55.6% 0.111 300.4)
-
Step 700
700
#6A5292
oklch(49.1% 0.102 299.9)
-
Step 800
800
#564376
oklch(42.6% 0.085 300)
-
Step 900
900 (this color)
#43355B
oklch(36.2% 0.066 300.1)
-
Step 950
950
#2A2238
oklch(27.2% 0.041 300.4)
#43355B 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) | #2B3C5C | 0.041 |
| Deuteranopia (no green cones) | #2E3C5A | 0.039 |
| Tritanopia (no blue cones) | #3F3B43 | 0.052 |
| Achromatopsia (no color) | #3C3C3C | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #43355B
#43355B
oklch(36.2% 0.066 300.1)
- #394217
#394217
oklch(36% 0.065 119.7)
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 #43355B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.060
- Onyx #343A40 ΔE 0.061
- Dark Grey Blue #29465B ΔE 0.062
- Dark Blue Grey #1F3B4D ΔE 0.064
- Space Cadet #2B2D42 ΔE 0.066
- Gunmetal #293241 ΔE 0.066
- Charcoal Grey #3C4142 ΔE 0.067
- Charcoal #264653 ΔE 0.070
Use #43355B 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.