#423174
Closest named color: Dark Slate Blue (#483D8B). oklch(36.9% 0.11 291.8), rgb(66, 49, 116).
Aa
White text reads best on this color (10.91:1).
About this color
#423174 is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.110 and its hue 292°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.049 away. White text reads best on it, at 10.91:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.110) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.92:1 |
| White text | 10.91:1 |
Values
| HEX | #423174 |
| RGB | rgb(66, 49, 116) |
| HSL | hsl(255, 41%, 32%) |
| OKLCH | oklch(36.9% 0.11 291.8) |
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 #423174 | 10.91:1 | AAA | Lc -98.9 | Preferred for body text |
| Black text on #423174 | 1.92:1 | Fails | Lc 8.9 | Not readable |
| #423174 text on white | 10.91:1 | AAA | Lc 95.0 | Preferred for body text |
| #423174 text on black | 1.92:1 | Fails | Lc -7.6 | 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
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#EAE7F9
oklch(93.6% 0.024 293.6)
-
Step 200
200
#D9D4F6
oklch(88.5% 0.047 292.2)
-
Step 300
300
#C1B7F2
oklch(80.8% 0.083 292.2)
-
Step 400
400
#A290EC
oklch(70.6% 0.133 291.6)
-
Step 500
500
#8D72E6
oklch(63.1% 0.169 291.5)
-
Step 600
600
#7957D4
oklch(55.7% 0.184 291.9)
-
Step 700
700
#6646B8
oklch(49.2% 0.172 291.8)
-
Step 800
800
#533A95
oklch(42.7% 0.143 291.9)
-
Step 900
900 (this color)
#423174
oklch(36.9% 0.11 291.8)
-
Step 950
950
#281F45
oklch(27.1% 0.069 292.1)
#423174 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) | #0F3E76 | 0.068 |
| Deuteranopia (no green cones) | #133B73 | 0.064 |
| Tritanopia (no blue cones) | #343F4D | 0.090 |
| Achromatopsia (no color) | #3D3D3D | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #423174
#423174
oklch(36.9% 0.11 291.8)
- #414300
#414300
oklch(36.9% 0.081 111.7)
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 #423174, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.049
- Blueberry #464196 ΔE 0.068
- Twilight Blue #0A437A ΔE 0.074
- Marine Blue #01386A ΔE 0.078
- Prussian Blue #1D3557 ΔE 0.079
- Indigo #4B0082 ΔE 0.079
- Cobalt #1E488F ΔE 0.080
- Royal Purple #4B006E ΔE 0.083
Use #423174 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.