#42446F
Closest named color: Dark Grey Blue (#29465B). oklch(40.5% 0.072 280.6), rgb(66, 68, 111).
Aa
White text reads best on this color (9.17:1).
About this color
#42446F is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.072 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.052 away. White text reads best on it, at 9.17:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.072) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.28:1 |
| White text | 9.17:1 |
Values
| HEX | #42446F |
| RGB | rgb(66, 68, 111) |
| HSL | hsl(237, 25%, 35%) |
| OKLCH | oklch(40.5% 0.072 280.6) |
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 #42446F | 9.17:1 | AAA | Lc -95.4 | Preferred for body text |
| Black text on #42446F | 2.28:1 | Fails | Lc 12.9 | Not readable |
| #42446F text on white | 9.17:1 | AAA | Lc 91.1 | Preferred for body text |
| #42446F text on black | 2.28:1 | Fails | Lc -11.3 | 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 800.
-
Step 50
50
#F5F5F9
oklch(97.1% 0.005 286.3)
-
Step 100
100
#E8E9F2
oklch(93.6% 0.012 281.1)
-
Step 200
200
#D6D8E9
oklch(88.6% 0.023 280.6)
-
Step 300
300
#BBBEDC
oklch(80.9% 0.042 280.9)
-
Step 400
400
#989CCA
oklch(70.6% 0.067 280.6)
-
Step 500
500
#8084BD
oklch(63.2% 0.086 280.6)
-
Step 600
600
#696CA9
oklch(55.5% 0.094 280.7)
-
Step 700
700
#585A91
oklch(49% 0.087 281.1)
-
Step 800
800 (this color)
#42446F
oklch(40.5% 0.072 280.6)
-
Step 900
900
#3C3E5F
oklch(37.7% 0.056 280.7)
-
Step 950
950
#232438
oklch(26.9% 0.037 281.4)
#42446F 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) | #364971 | 0.021 |
| Deuteranopia (no green cones) | #33466E | 0.022 |
| Tritanopia (no blue cones) | #354C54 | 0.062 |
| Achromatopsia (no color) | #484848 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42446F
#42446F
oklch(40.5% 0.072 280.6)
- #524A15
#524A15
oklch(40.6% 0.072 100.6)
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 #42446F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.052
- Dark Slate Blue #483D8B ΔE 0.055
- Dusk #4E5481 ΔE 0.056
- Twilight #4E518B ΔE 0.059
- Light Navy #155084 ΔE 0.059
- Twilight Blue #0A437A ΔE 0.061
- Dusk Blue #26538D ΔE 0.064
- YInMn Blue #415A77 ΔE 0.065
Use #42446F 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.