#42426D
Closest named color: Dark Grey Blue (#29465B). oklch(39.9% 0.072 282.7), rgb(66, 66, 109).
Aa
White text reads best on this color (9.40:1).
About this color
#42426D is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.072 and its hue 283°. 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 9.40:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.072) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.23:1 |
| White text | 9.40:1 |
Values
| HEX | #42426D |
| RGB | rgb(66, 66, 109) |
| HSL | hsl(240, 25%, 34%) |
| OKLCH | oklch(39.9% 0.072 282.7) |
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 #42426D | 9.40:1 | AAA | Lc -96.0 | Preferred for body text |
| Black text on #42426D | 2.23:1 | Fails | Lc 12.3 | Not readable |
| #42426D text on white | 9.40:1 | AAA | Lc 91.7 | Preferred for body text |
| #42426D text on black | 2.23:1 | Fails | Lc -10.7 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E8E9F4
oklch(93.6% 0.015 281.9)
-
Step 200
200
#D6D7ED
oklch(88.5% 0.03 283.7)
-
Step 300
300
#BBBDE3
oklch(80.9% 0.053 282.8)
-
Step 400
400
#989AD5
oklch(70.7% 0.086 282.5)
-
Step 500
500
#8080CA
oklch(63.1% 0.11 282.8)
-
Step 600
600
#6A68B7
oklch(55.5% 0.121 282.9)
-
Step 700
700
#58579D
oklch(49.1% 0.11 282.2)
-
Step 800
800
#484780
oklch(42.7% 0.093 282.5)
-
Step 900
900 (this color)
#42426D
oklch(39.9% 0.072 282.7)
-
Step 950
950
#23233C
oklch(26.9% 0.046 282.9)
#42426D 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) | #34486F | 0.025 |
| Deuteranopia (no green cones) | #32456C | 0.024 |
| Tritanopia (no blue cones) | #364A52 | 0.062 |
| Achromatopsia (no color) | #464646 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42426D
#42426D
oklch(39.9% 0.072 282.7)
- #4F4914
#4F4914
oklch(40% 0.072 102.8)
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 #42426D, 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 0.055
- Twilight Blue #0A437A ΔE 0.061
- Dusk #4E5481 ΔE 0.062
- Light Navy #155084 ΔE 0.063
- Twilight #4E518B ΔE 0.064
- Charcoal #264653 ΔE 0.065
- Cobalt #1E488F ΔE 0.068
Use #42426D 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.