#343274
Closest named color: Marine Blue (#01386A). oklch(35.8% 0.11 280.6), rgb(52, 50, 116).
Aa
White text reads best on this color (11.32:1).
About this color
#343274 is a dark, moderately saturated purple. In OKLCH its lightness is 36%, its chroma 0.110 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.056 away. White text reads best on it, at 11.32:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.110) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.85:1 |
| White text | 11.32:1 |
Values
| HEX | #343274 |
| RGB | rgb(52, 50, 116) |
| HSL | hsl(242, 40%, 33%) |
| OKLCH | oklch(35.8% 0.11 280.6) |
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 #343274 | 11.32:1 | AAA | Lc -99.7 | Preferred for body text |
| Black text on #343274 | 1.85:1 | Fails | Lc 8.0 | Not readable |
| #343274 text on white | 11.32:1 | AAA | Lc 95.9 | Preferred for body text |
| #343274 text on black | 1.85:1 | 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
#E6E8FA
oklch(93.5% 0.024 280.9)
-
Step 200
200
#D3D6F8
oklch(88.5% 0.047 281.4)
-
Step 300
300
#B6BBF6
oklch(80.9% 0.083 280.6)
-
Step 400
400
#9296F1
oklch(70.8% 0.132 280.5)
-
Step 500
500
#7979EC
oklch(63.1% 0.169 280.4)
-
Step 600
600
#645EDA
oklch(55.5% 0.184 280.7)
-
Step 700
700
#534DBD
oklch(49.1% 0.17 280.5)
-
Step 800
800
#444099
oklch(42.7% 0.141 280.6)
-
Step 900
900 (this color)
#343274
oklch(35.8% 0.11 280.6)
-
Step 950
950
#212147
oklch(27% 0.069 280.7)
#343274 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) | #0A3D76 | 0.049 |
| Deuteranopia (no green cones) | #013873 | 0.051 |
| Tritanopia (no blue cones) | #19414E | 0.094 |
| Achromatopsia (no color) | #3A3A3A | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #343274
#343274
oklch(35.8% 0.11 280.6)
- #453D00
#453D00
oklch(35.7% 0.075 101.1)
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 #343274, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.056
- Twilight Blue #0A437A ΔE 0.057
- Dark Slate Blue #483D8B ΔE 0.059
- Prussian Blue #1D3557 ΔE 0.063
- Marine #042E60 ΔE 0.069
- Cobalt #1E488F ΔE 0.072
- Blueberry #464196 ΔE 0.075
- Midnight Blue #191970 ΔE 0.079
Use #343274 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.