#423275
Closest named color: Dark Slate Blue (#483D8B). oklch(37.2% 0.11 291.1), rgb(66, 50, 117).
Aa
White text reads best on this color (10.79:1).
About this color
#423275 is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.110 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.046 away. White text reads best on it, at 10.79:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.110) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.94:1 |
| White text | 10.79:1 |
Values
| HEX | #423275 |
| RGB | rgb(66, 50, 117) |
| HSL | hsl(254, 40%, 33%) |
| OKLCH | oklch(37.2% 0.11 291.1) |
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 #423275 | 10.79:1 | AAA | Lc -98.7 | Preferred for body text |
| Black text on #423275 | 1.94:1 | Fails | Lc 9.1 | Not readable |
| #423275 text on white | 10.79:1 | AAA | Lc 94.8 | Preferred for body text |
| #423275 text on black | 1.94:1 | Fails | Lc -7.8 | 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
#E9E7F9
oklch(93.5% 0.024 291)
-
Step 200
200
#D9D4F6
oklch(88.5% 0.047 292.2)
-
Step 300
300
#C0B8F3
oklch(81% 0.083 290.6)
-
Step 400
400
#A191EC
oklch(70.7% 0.131 290.7)
-
Step 500
500
#8C72E6
oklch(63.1% 0.169 291.1)
-
Step 600
600
#7757D4
oklch(55.5% 0.184 291)
-
Step 700
700
#6546B8
oklch(49.1% 0.172 291.3)
-
Step 800
800
#523B95
oklch(42.8% 0.141 291)
-
Step 900
900 (this color)
#423275
oklch(37.2% 0.11 291.1)
-
Step 950
950
#271F45
oklch(27% 0.069 290.8)
#423275 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) | #113F77 | 0.066 |
| Deuteranopia (no green cones) | #143C74 | 0.063 |
| Tritanopia (no blue cones) | #34404E | 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°).
- #423275
#423275
oklch(37.2% 0.11 291.1)
- #424400
#424400
oklch(37.2% 0.082 111.7)
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 #423275, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.046
- Blueberry #464196 ΔE 0.065
- Twilight Blue #0A437A ΔE 0.072
- Cobalt #1E488F ΔE 0.078
- Marine Blue #01386A ΔE 0.078
- Prussian Blue #1D3557 ΔE 0.079
- Indigo #4B0082 ΔE 0.081
- Royal Purple #4B006E ΔE 0.085
Use #423275 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.