#42276F
Closest named color: Royal Purple (#4B006E). oklch(34.8% 0.119 297), rgb(66, 39, 111).
Aa
White text reads best on this color (11.99:1).
About this color
#42276F is a dark, moderately saturated purple. In OKLCH its lightness is 35%, its chroma 0.119 and its hue 297°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Royal Purple (#4B006E), ΔE 0.060 away. White text reads best on it, at 11.99:1.
| Hue family | Purples |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.119) |
| Temperature | in between |
| Nearest name | Royal Purple (#4B006E) |
| Black text | 1.75:1 |
| White text | 11.99:1 |
Values
| HEX | #42276F |
| RGB | rgb(66, 39, 111) |
| HSL | hsl(263, 48%, 29%) |
| OKLCH | oklch(34.8% 0.119 297) |
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 #42276F | 11.99:1 | AAA | Lc -100.7 | Preferred for body text |
| Black text on #42276F | 1.75:1 | Fails | Lc 0.0 | Not readable |
| #42276F text on white | 11.99:1 | AAA | Lc 97.1 | Preferred for body text |
| #42276F text on black | 1.75:1 | Fails | Lc 0.0 | 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
#F6F4FD
oklch(97.1% 0.012 296.4)
-
Step 100
100
#EBE7FA
oklch(93.7% 0.026 295.5)
-
Step 200
200
#DCD3F7
oklch(88.5% 0.05 296.8)
-
Step 300
300
#C6B5F4
oklch(80.9% 0.089 296.7)
-
Step 400
400
#AB8CEE
oklch(70.8% 0.142 297.2)
-
Step 500
500
#976BE9
oklch(63.1% 0.184 296.9)
-
Step 600
600
#834FD7
oklch(55.7% 0.199 297.1)
-
Step 700
700
#6F3EBA
oklch(49.1% 0.185 297.2)
-
Step 800
800
#5A3597
oklch(42.8% 0.153 296.8)
-
Step 900
900 (this color)
#42276F
oklch(34.8% 0.119 297)
-
Step 950
950
#2B1C46
oklch(26.9% 0.076 297.5)
#42276F 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) | #003771 | 0.084 |
| Deuteranopia (no green cones) | #04366D | 0.082 |
| Tritanopia (no blue cones) | #373747 | 0.092 |
| Achromatopsia (no color) | #373737 | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42276F
#42276F
oklch(34.8% 0.119 297)
- #373F00
#373F00
oklch(34.8% 0.081 117.5)
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 #42276F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Purple #4B006E ΔE 0.060
- Indigo #4B0082 ΔE 0.062
- Dark Slate Blue #483D8B ΔE 0.071
- Plum Purple #4E0550 ΔE 0.080
- Grape Purple #5D1451 ΔE 0.082
- Prussian Blue #1D3557 ΔE 0.082
- Midnight Blue #191970 ΔE 0.085
- Marine Blue #01386A ΔE 0.086
Use #42276F 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.