#353166
Closest named color: Prussian Blue (#1D3557). oklch(34.6% 0.09 284.1), rgb(53, 49, 102).
Aa
White text reads best on this color (11.78:1).
About this color
#353166 is a dark, moderately saturated purple. In OKLCH its lightness is 35%, its chroma 0.090 and its hue 284°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.046 away. White text reads best on it, at 11.78:1.
| Hue family | Purples |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.78:1 |
| White text | 11.78:1 |
Values
| HEX | #353166 |
| RGB | rgb(53, 49, 102) |
| HSL | hsl(245, 35%, 30%) |
| OKLCH | oklch(34.6% 0.09 284.1) |
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 #353166 | 11.78:1 | AAA | Lc -100.5 | Preferred for body text |
| Black text on #353166 | 1.78:1 | Fails | Lc 0.0 | Not readable |
| #353166 text on white | 11.78:1 | AAA | Lc 96.9 | Preferred for body text |
| #353166 text on black | 1.78:1 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E8E8F7
oklch(93.5% 0.02 286)
-
Step 200
200
#D5D6F2
oklch(88.4% 0.038 284)
-
Step 300
300
#BBBBEB
oklch(80.8% 0.067 284.8)
-
Step 400
400
#9897E2
oklch(70.7% 0.109 283.9)
-
Step 500
500
#817CD9
oklch(63.2% 0.137 284.2)
-
Step 600
600
#6B63C7
oklch(55.6% 0.15 284)
-
Step 700
700
#5951AC
oklch(49% 0.141 283.9)
-
Step 800
800
#49438B
oklch(42.7% 0.116 284.1)
-
Step 900
900 (this color)
#353166
oklch(34.6% 0.09 284.1)
-
Step 950
950
#232241
oklch(27% 0.057 283.4)
#353166 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) | #1A3968 | 0.040 |
| Deuteranopia (no green cones) | #183665 | 0.040 |
| Tritanopia (no blue cones) | #253C46 | 0.077 |
| Achromatopsia (no color) | #383838 | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #353166
#353166
oklch(34.6% 0.09 284.1)
- #403B00
#403B00
oklch(34.6% 0.073 104.2)
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 #353166, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.046
- Marine Blue #01386A ΔE 0.054
- Marine #042E60 ΔE 0.061
- Twilight Blue #0A437A ΔE 0.066
- Space Cadet #2B2D42 ΔE 0.067
- Dark Blue Grey #1F3B4D ΔE 0.067
- Gunmetal #293241 ΔE 0.071
- Dark Grey Blue #29465B ΔE 0.072
Use #353166 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.