#423E5F
Closest named color: Dark Grey Blue (#29465B). oklch(38.3% 0.056 289), rgb(66, 62, 95).
Aa
White text reads best on this color (10.06:1).
About this color
#423E5F is a dark, muted purple. In OKLCH its lightness is 38%, its chroma 0.056 and its hue 289°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.043 away. White text reads best on it, at 10.06:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | muted (0.056) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.08:1 |
| White text | 10.06:1 |
Values
| HEX | #423E5F |
| RGB | rgb(66, 62, 95) |
| HSL | hsl(247, 21%, 31%) |
| OKLCH | oklch(38.3% 0.056 289) |
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 #423E5F | 10.06:1 | AAA | Lc -97.4 | Preferred for body text |
| Black text on #423E5F | 2.08:1 | Fails | Lc 10.6 | Not readable |
| #423E5F text on white | 10.06:1 | AAA | Lc 93.3 | Preferred for body text |
| #423E5F text on black | 2.08:1 | Fails | Lc -9.2 | 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 900.
-
Step 50
50
#F5F5F9
oklch(97.1% 0.005 286.3)
-
Step 100
100
#E9E9F2
oklch(93.7% 0.012 286.2)
-
Step 200
200
#D8D7E8
oklch(88.5% 0.023 288.6)
-
Step 300
300
#BFBDDB
oklch(81% 0.042 288.5)
-
Step 400
400
#9F9AC8
oklch(70.7% 0.067 289.6)
-
Step 500
500
#8881BA
oklch(63.1% 0.085 289.4)
-
Step 600
600
#726AA6
oklch(55.7% 0.092 289.2)
-
Step 700
700
#5F588F
oklch(49.1% 0.087 288.6)
-
Step 800
800
#4E4874
oklch(42.7% 0.072 289.2)
-
Step 900
900 (this color)
#423E5F
oklch(38.3% 0.056 289)
-
Step 950
950
#262437
oklch(27.1% 0.035 288.7)
#423E5F 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) | #354360 | 0.024 |
| Deuteranopia (no green cones) | #35415E | 0.022 |
| Tritanopia (no blue cones) | #3B444A | 0.048 |
| Achromatopsia (no color) | #424242 | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #423E5F
#423E5F
oklch(38.3% 0.056 289)
- #454520
#454520
oklch(38.1% 0.056 108.8)
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 #423E5F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.043
- Charcoal #264653 ΔE 0.053
- Charcoal Grey #3C4142 ΔE 0.056
- Onyx #343A40 ΔE 0.060
- Dark Blue Grey #1F3B4D ΔE 0.062
- Prussian Blue #1D3557 ΔE 0.066
- Twilight Blue #0A437A ΔE 0.072
- Dark Slate Gray #2F4F4F ΔE 0.072
Use #423E5F 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.