#42446E
Closest named color: Dark Grey Blue (#29465B). oklch(40.4% 0.07 280.7), rgb(66, 68, 110).
Aa
White text reads best on this color (9.19:1).
About this color
#42446E is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.070 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.051 away. White text reads best on it, at 9.19:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.070) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.28:1 |
| White text | 9.19:1 |
Values
| HEX | #42446E |
| RGB | rgb(66, 68, 110) |
| HSL | hsl(237, 25%, 35%) |
| OKLCH | oklch(40.4% 0.07 280.7) |
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 #42446E | 9.19:1 | AAA | Lc -95.5 | Preferred for body text |
| Black text on #42446E | 2.28:1 | Fails | Lc 12.8 | Not readable |
| #42446E text on white | 9.19:1 | AAA | Lc 91.1 | Preferred for body text |
| #42446E text on black | 2.28:1 | Fails | Lc -11.2 | 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
#D6D8E8
oklch(88.5% 0.022 280.3)
-
Step 300
300
#BBBEDB
oklch(80.8% 0.041 280.8)
-
Step 400
400
#999CC9
oklch(70.6% 0.066 281.6)
-
Step 500
500
#8084BC
oklch(63.2% 0.084 280.5)
-
Step 600
600
#6A6DA8
oklch(55.7% 0.091 280.8)
-
Step 700
700
#585B90
oklch(49.2% 0.084 280.3)
-
Step 800
800 (this color)
#42446E
oklch(40.4% 0.07 280.7)
-
Step 900
900
#3C3E5E
oklch(37.7% 0.055 280.7)
-
Step 950
950
#232437
oklch(26.8% 0.035 281.4)
#42446E 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) | #364970 | 0.021 |
| Deuteranopia (no green cones) | #34466D | 0.021 |
| Tritanopia (no blue cones) | #354C54 | 0.061 |
| Achromatopsia (no color) | #484848 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42446E
#42446E
oklch(40.4% 0.07 280.7)
- #514A17
#514A17
oklch(40.5% 0.07 101.5)
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 #42446E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.051
- Dark Slate Blue #483D8B ΔE 0.056
- Dusk #4E5481 ΔE 0.056
- Light Navy #155084 ΔE 0.060
- Twilight #4E518B ΔE 0.060
- Twilight Blue #0A437A ΔE 0.062
- Charcoal #264653 ΔE 0.064
- Dusk Blue #26538D ΔE 0.065
Use #42446E 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.