#342F57
Closest named color: Prussian Blue (#1D3557). oklch(33.1% 0.069 287.7), rgb(52, 47, 87).
Aa
White text reads best on this color (12.42:1).
About this color
#342F57 is a dark, muted purple. In OKLCH its lightness is 33%, its chroma 0.069 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.036 away. White text reads best on it, at 12.42:1.
| Hue family | Purples |
| Lightness | dark (33%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.69:1 |
| White text | 12.42:1 |
Values
| HEX | #342F57 |
| RGB | rgb(52, 47, 87) |
| HSL | hsl(248, 30%, 26%) |
| OKLCH | oklch(33.1% 0.069 287.7) |
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 #342F57 | 12.42:1 | AAA | Lc -101.6 | Preferred for body text |
| Black text on #342F57 | 1.69:1 | Fails | Lc 0.0 | Not readable |
| #342F57 text on white | 12.42:1 | AAA | Lc 98.2 | Preferred for body text |
| #342F57 text on black | 1.69:1 | 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
#E9E8F4
oklch(93.5% 0.016 289.9)
-
Step 200
200
#D7D7EC
oklch(88.6% 0.029 285.8)
-
Step 300
300
#BEBCE1
oklch(80.9% 0.052 287.7)
-
Step 400
400
#9D99D2
oklch(70.7% 0.083 287.3)
-
Step 500
500
#867FC6
oklch(63.2% 0.105 287.5)
-
Step 600
600
#7067B3
oklch(55.6% 0.116 287.4)
-
Step 700
700
#5E559A
oklch(49% 0.108 287.7)
-
Step 800
800
#4D467D
oklch(42.7% 0.089 287.8)
-
Step 900
900 (this color)
#342F57
oklch(33.1% 0.069 287.7)
-
Step 950
950
#25233B
oklch(27% 0.044 286.9)
#342F57 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) | #223559 | 0.030 |
| Deuteranopia (no green cones) | #213356 | 0.030 |
| Tritanopia (no blue cones) | #2B373E | 0.060 |
| Achromatopsia (no color) | #343434 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #342F57
#342F57
oklch(33.1% 0.069 287.7)
- #393802
#393802
oklch(33.1% 0.07 108.5)
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 #342F57, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.036
- Space Cadet #2B2D42 ΔE 0.041
- Gunmetal #293241 ΔE 0.048
- Dark Blue Grey #1F3B4D ΔE 0.053
- Marine #042E60 ΔE 0.059
- Marine Blue #01386A ΔE 0.061
- Onyx #343A40 ΔE 0.061
- Midnight Green #073B4C ΔE 0.066
Use #342F57 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.