#343258
Closest named color: Prussian Blue (#1D3557). oklch(33.8% 0.066 284.7), rgb(52, 50, 88).
Aa
White text reads best on this color (12.04:1).
About this color
#343258 is a dark, muted purple. In OKLCH its lightness is 34%, its chroma 0.066 and its hue 285°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.033 away. White text reads best on it, at 12.04:1.
| Hue family | Purples |
| Lightness | dark (34%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.74:1 |
| White text | 12.04:1 |
Values
| HEX | #343258 |
| RGB | rgb(52, 50, 88) |
| HSL | hsl(243, 28%, 27%) |
| OKLCH | oklch(33.8% 0.066 284.7) |
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 #343258 | 12.04:1 | AAA | Lc -101.0 | Preferred for body text |
| Black text on #343258 | 1.74:1 | Fails | Lc 0.0 | Not readable |
| #343258 text on white | 12.04:1 | AAA | Lc 97.5 | Preferred for body text |
| #343258 text on black | 1.74:1 | 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
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#E8E9F3
oklch(93.6% 0.013 281.6)
-
Step 200
200
#D7D7EB
oklch(88.5% 0.027 285.8)
-
Step 300
300
#BCBDE0
oklch(80.9% 0.049 284)
-
Step 400
400
#9B9AD0
oklch(70.7% 0.078 285.1)
-
Step 500
500
#8380C4
oklch(63% 0.101 285.1)
-
Step 600
600
#6D69B1
oklch(55.6% 0.11 284.8)
-
Step 700
700
#5B5798
oklch(49.1% 0.102 284.8)
-
Step 800
800
#4A477B
oklch(42.6% 0.085 284.8)
-
Step 900
900 (this color)
#343258
oklch(33.8% 0.066 284.7)
-
Step 950
950
#24233A
oklch(26.9% 0.042 285.2)
#343258 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) | #253759 | 0.025 |
| Deuteranopia (no green cones) | #243557 | 0.025 |
| Tritanopia (no blue cones) | #2A3940 | 0.057 |
| Achromatopsia (no color) | #363636 | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #343258
#343258
oklch(33.8% 0.066 284.7)
- #3D3908
#3D3908
oklch(33.9% 0.066 104.6)
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 #343258, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.033
- Space Cadet #2B2D42 ΔE 0.044
- Gunmetal #293241 ΔE 0.047
- Dark Blue Grey #1F3B4D ΔE 0.048
- Onyx #343A40 ΔE 0.056
- Marine Blue #01386A ΔE 0.058
- Marine #042E60 ΔE 0.061
- Midnight Green #073B4C ΔE 0.062
Use #343258 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.