#342F6B
Closest named color: Prussian Blue (#1D3557). oklch(34.5% 0.101 283.5), rgb(52, 47, 107).
Aa
White text reads best on this color (11.89:1).
About this color
#342F6B is a dark, moderately saturated purple. In OKLCH its lightness is 34%, its chroma 0.101 and its hue 284°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.053 away. White text reads best on it, at 11.89:1.
| Hue family | Purples |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.101) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.76:1 |
| White text | 11.89:1 |
Values
| HEX | #342F6B |
| RGB | rgb(52, 47, 107) |
| HSL | hsl(245, 39%, 30%) |
| OKLCH | oklch(34.5% 0.101 283.5) |
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 #342F6B | 11.89:1 | AAA | Lc -100.7 | Preferred for body text |
| Black text on #342F6B | 1.76:1 | Fails | Lc 0.0 | Not readable |
| #342F6B text on white | 11.89:1 | AAA | Lc 97.1 | Preferred for body text |
| #342F6B text on black | 1.76:1 | 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
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E7E8F9
oklch(93.5% 0.023 283.3)
-
Step 200
200
#D5D6F5
oklch(88.5% 0.042 284)
-
Step 300
300
#BABBF1
oklch(81% 0.076 283.7)
-
Step 400
400
#9796EA
oklch(70.8% 0.122 283.4)
-
Step 500
500
#7F79E3
oklch(63% 0.156 283.5)
-
Step 600
600
#6A60D1
oklch(55.7% 0.168 283.5)
-
Step 700
700
#594EB5
oklch(49.1% 0.157 283.8)
-
Step 800
800
#484192
oklch(42.7% 0.129 283.4)
-
Step 900
900 (this color)
#342F6B
oklch(34.5% 0.101 283.5)
-
Step 950
950
#232144
oklch(27% 0.064 283.9)
#342F6B 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) | #10396D | 0.047 |
| Deuteranopia (no green cones) | #0C356A | 0.048 |
| Tritanopia (no blue cones) | #203C48 | 0.086 |
| Achromatopsia (no color) | #373737 | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #342F6B
#342F6B
oklch(34.5% 0.101 283.5)
- #403A00
#403A00
oklch(34.4% 0.072 103)
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 #342F6B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.053
- Marine Blue #01386A ΔE 0.055
- Marine #042E60 ΔE 0.061
- Twilight Blue #0A437A ΔE 0.067
- Dark Slate Blue #483D8B ΔE 0.074
- Midnight Blue #191970 ΔE 0.075
- Space Cadet #2B2D42 ΔE 0.075
- Dark Blue Grey #1F3B4D ΔE 0.076
Use #342F6B 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.