#343270
Closest named color: Marine Blue (#01386A). oklch(35.5% 0.104 281.1), rgb(52, 50, 112).
Aa
White text reads best on this color (11.43:1).
About this color
#343270 is a dark, moderately saturated purple. In OKLCH its lightness is 35%, its chroma 0.104 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.053 away. White text reads best on it, at 11.43:1.
| Hue family | Purples |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.104) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.83:1 |
| White text | 11.43:1 |
Values
| HEX | #343270 |
| RGB | rgb(52, 50, 112) |
| HSL | hsl(242, 38%, 32%) |
| OKLCH | oklch(35.5% 0.104 281.1) |
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 #343270 | 11.43:1 | AAA | Lc -99.9 | Preferred for body text |
| Black text on #343270 | 1.83:1 | Fails | Lc 7.7 | Not readable |
| #343270 text on white | 11.43:1 | AAA | Lc 96.1 | Preferred for body text |
| #343270 text on black | 1.83:1 | 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
#F4F5FD
oklch(97.2% 0.011 280.5)
-
Step 100
100
#E7E8F9
oklch(93.5% 0.023 283.3)
-
Step 200
200
#D3D6F6
oklch(88.4% 0.044 281.2)
-
Step 300
300
#B7BBF3
oklch(80.8% 0.079 281.3)
-
Step 400
400
#9396EC
oklch(70.6% 0.125 281.2)
-
Step 500
500
#7B7AE6
oklch(63.1% 0.159 281.3)
-
Step 600
600
#6560D4
oklch(55.5% 0.173 281.1)
-
Step 700
700
#554FB8
oklch(49.2% 0.161 281.3)
-
Step 800
800
#454195
oklch(42.7% 0.134 281.2)
-
Step 900
900 (this color)
#343270
oklch(35.5% 0.104 281.1)
-
Step 950
950
#212145
oklch(26.8% 0.066 281)
#343270 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) | #113C72 | 0.045 |
| Deuteranopia (no green cones) | #0A376F | 0.047 |
| Tritanopia (no blue cones) | #1C404C | 0.089 |
| Achromatopsia (no color) | #3A3A3A | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #343270
#343270
oklch(35.5% 0.104 281.1)
- #443C00
#443C00
oklch(35.4% 0.074 100.9)
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 #343270, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.053
- Prussian Blue #1D3557 ΔE 0.057
- Twilight Blue #0A437A ΔE 0.058
- Dark Slate Blue #483D8B ΔE 0.064
- Marine #042E60 ΔE 0.065
- Cobalt #1E488F ΔE 0.076
- Dark Grey Blue #29465B ΔE 0.078
- Dark Blue Grey #1F3B4D ΔE 0.078
Use #343270 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.