#423D6F
Closest named color: Dark Slate Blue (#483D8B). oklch(39% 0.083 286.4), rgb(66, 61, 111).
Aa
White text reads best on this color (9.86:1).
About this color
#423D6F is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.083 and its hue 286°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.048 away. White text reads best on it, at 9.86:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.12:1 |
| White text | 9.86:1 |
Values
| HEX | #423D6F |
| RGB | rgb(66, 61, 111) |
| HSL | hsl(246, 29%, 34%) |
| OKLCH | oklch(39% 0.083 286.4) |
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 #423D6F | 9.86:1 | AAA | Lc -97.0 | Preferred for body text |
| Black text on #423D6F | 2.12:1 | Fails | Lc 11.1 | Not readable |
| #423D6F text on white | 9.86:1 | AAA | Lc 92.8 | Preferred for body text |
| #423D6F text on black | 2.12:1 | Fails | Lc -9.7 | 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
#F5F5FB
oklch(97.2% 0.008 286.3)
-
Step 100
100
#E8E8F6
oklch(93.5% 0.019 286)
-
Step 200
200
#D7D6F0
oklch(88.5% 0.036 287.4)
-
Step 300
300
#BDBBE8
oklch(80.9% 0.063 286.9)
-
Step 400
400
#9C97DC
oklch(70.7% 0.1 286.9)
-
Step 500
500
#847CD2
oklch(63% 0.127 286.4)
-
Step 600
600
#6F64C0
oklch(55.7% 0.139 286.4)
-
Step 700
700
#5D52A5
oklch(49.1% 0.129 286.7)
-
Step 800
800
#4C4486
oklch(42.8% 0.106 286.5)
-
Step 900
900 (this color)
#423D6F
oklch(39% 0.083 286.4)
-
Step 950
950
#25223F
oklch(27.1% 0.053 287)
#423D6F 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) | #2C4571 | 0.036 |
| Deuteranopia (no green cones) | #2B426E | 0.035 |
| Tritanopia (no blue cones) | #364750 | 0.071 |
| Achromatopsia (no color) | #434343 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #423D6F
#423D6F
oklch(39% 0.083 286.4)
- #4B4700
#4B4700
oklch(38.9% 0.083 106)
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 #423D6F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.048
- Dark Grey Blue #29465B ΔE 0.060
- Twilight Blue #0A437A ΔE 0.061
- Blueberry #464196 ΔE 0.065
- Cobalt #1E488F ΔE 0.068
- Light Navy #155084 ΔE 0.071
- Twilight #4E518B ΔE 0.072
- Dusk #4E5481 ΔE 0.073
Use #423D6F 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.