#42346F
Closest named color: Dark Slate Blue (#483D8B). oklch(37.1% 0.098 291.8), rgb(66, 52, 111).
Aa
White text reads best on this color (10.75:1).
About this color
#42346F is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.098 and its hue 292°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.052 away. White text reads best on it, at 10.75:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.098) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.95:1 |
| White text | 10.75:1 |
Values
| HEX | #42346F |
| RGB | rgb(66, 52, 111) |
| HSL | hsl(254, 36%, 32%) |
| OKLCH | oklch(37.1% 0.098 291.8) |
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 #42346F | 10.75:1 | AAA | Lc -98.7 | Preferred for body text |
| Black text on #42346F | 1.95:1 | Fails | Lc 9.2 | Not readable |
| #42346F text on white | 10.75:1 | AAA | Lc 94.8 | Preferred for body text |
| #42346F text on black | 1.95:1 | Fails | Lc -7.9 | 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
#F5F4FC
oklch(97% 0.011 292)
-
Step 100
100
#EAE8F7
oklch(93.7% 0.02 292.1)
-
Step 200
200
#D9D5F3
oklch(88.5% 0.041 291.7)
-
Step 300
300
#C1B9ED
oklch(81% 0.073 291.7)
-
Step 400
400
#A292E4
oklch(70.6% 0.119 292)
-
Step 500
500
#8C75DC
oklch(63% 0.151 291.7)
-
Step 600
600
#775CCA
oklch(55.6% 0.164 291.5)
-
Step 700
700
#654BAE
oklch(49.2% 0.152 292)
-
Step 800
800
#523E8D
oklch(42.7% 0.126 291.9)
-
Step 900
900 (this color)
#42346F
oklch(37.1% 0.098 291.8)
-
Step 950
950
#272042
oklch(27% 0.062 291.2)
#42346F 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) | #1C3F71 | 0.057 |
| Deuteranopia (no green cones) | #1E3C6E | 0.054 |
| Tritanopia (no blue cones) | #36404C | 0.081 |
| Achromatopsia (no color) | #3E3E3E | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42346F
#42346F
oklch(37.1% 0.098 291.8)
- #424400
#424400
oklch(37.2% 0.082 111.7)
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 #42346F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.052
- Twilight Blue #0A437A ΔE 0.070
- Blueberry #464196 ΔE 0.071
- Prussian Blue #1D3557 ΔE 0.072
- Marine Blue #01386A ΔE 0.075
- Dark Grey Blue #29465B ΔE 0.077
- Cobalt #1E488F ΔE 0.080
- Dark Blue Grey #1F3B4D ΔE 0.086
Use #42346F 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.