#342F7E
Closest named color: Dark Slate Blue (#483D8B). oklch(36% 0.129 280.6), rgb(52, 47, 126).
Aa
White text reads best on this color (11.32:1).
About this color
#342F7E is a dark, moderately saturated purple. In OKLCH its lightness is 36%, its chroma 0.129 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.055 away. White text reads best on it, at 11.32:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.129) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.85:1 |
| White text | 11.32:1 |
Values
| HEX | #342F7E |
| RGB | rgb(52, 47, 126) |
| HSL | hsl(244, 46%, 34%) |
| OKLCH | oklch(36% 0.129 280.6) |
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 #342F7E | 11.32:1 | AAA | Lc -99.5 | Preferred for body text |
| Black text on #342F7E | 1.85:1 | Fails | Lc 8.1 | Not readable |
| #342F7E text on white | 11.32:1 | AAA | Lc 95.8 | Preferred for body text |
| #342F7E 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
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E6E8FD
oklch(93.6% 0.028 281.5)
-
Step 200
200
#D2D6FD
oklch(88.5% 0.054 280.6)
-
Step 300
300
#B5BAFE
oklch(80.9% 0.096 280.8)
-
Step 400
400
#9093FE
oklch(70.7% 0.154 280.5)
-
Step 500
500
#7873FC
oklch(63.1% 0.198 280.7)
-
Step 600
600
#6357EB
oklch(55.6% 0.215 280.5)
-
Step 700
700
#5345CD
oklch(49.1% 0.201 280.6)
-
Step 800
800
#433AA6
oklch(42.7% 0.167 280.4)
-
Step 900
900 (this color)
#342F7E
oklch(36% 0.129 280.6)
-
Step 950
950
#201F4D
oklch(26.9% 0.083 280.3)
#342F7E 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) | #003D81 | 0.055 |
| Deuteranopia (no green cones) | #00377C | 0.052 |
| Tritanopia (no blue cones) | #0C4251 | 0.111 |
| Achromatopsia (no color) | #3A3A3A | 0.130 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #342F7E
#342F7E
oklch(36% 0.129 280.6)
- #463E00
#463E00
oklch(36.1% 0.075 101.2)
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 #342F7E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.055
- Twilight Blue #0A437A ΔE 0.064
- Marine Blue #01386A ΔE 0.066
- Blueberry #464196 ΔE 0.068
- Cobalt #1E488F ΔE 0.070
- Midnight Blue #191970 ΔE 0.076
- Marine #042E60 ΔE 0.078
- Indigo #4B0082 ΔE 0.078
Use #342F7E 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.