#42175C
Closest named color: Plum Purple (#4E0550). oklch(30.9% 0.12 309.6), rgb(66, 23, 92).
Aa
White text reads best on this color (13.91:1).
About this color
#42175C is a dark, moderately saturated purple. In OKLCH its lightness is 31%, its chroma 0.120 and its hue 310°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Plum Purple (#4E0550), ΔE 0.041 away. White text reads best on it, at 13.91:1.
| Hue family | Purples |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.120) |
| Temperature | in between |
| Nearest name | Plum Purple (#4E0550) |
| Black text | 1.50:1 |
| White text | 13.91:1 |
Values
| HEX | #42175C |
| RGB | rgb(66, 23, 92) |
| HSL | hsl(277, 60%, 23%) |
| OKLCH | oklch(30.9% 0.12 309.6) |
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 #42175C | 13.91:1 | AAA | Lc -103.1 | Preferred for body text |
| Black text on #42175C | 1.50:1 | Fails | Lc 0.0 | Not readable |
| #42175C text on white | 13.91:1 | AAA | Lc 100.0 | Preferred for body text |
| #42175C text on black | 1.50:1 | 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 950.
-
Step 50
50
#F9F2FF
oklch(97% 0.019 309.8)
-
Step 100
100
#F2E3FF
oklch(93.6% 0.041 309.5)
-
Step 200
200
#E8CCFF
oklch(88.5% 0.075 309.6)
-
Step 300
300
#DAA9FF
oklch(81% 0.128 309.8)
-
Step 400
400
#C774FF
oklch(70.7% 0.207 309.7)
-
Step 500
500
#BA40FF
oklch(63.2% 0.268 309.7)
-
Step 600
600
#A400EA
oklch(55.6% 0.282 309.6)
-
Step 700
700
#8A00C6
oklch(49% 0.248 309.6)
-
Step 800
800
#7200A4
oklch(42.7% 0.216 309.7)
-
Step 900
900
#5F038A
oklch(37.7% 0.189 309.5)
-
Step 950
950 (this color)
#42175C
oklch(30.9% 0.12 309.6)
#42175C 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) | #002A5E | 0.101 |
| Deuteranopia (no green cones) | #0A2D5A | 0.097 |
| Tritanopia (no blue cones) | #3E2637 | 0.083 |
| Achromatopsia (no color) | #2C2C2C | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42175C
#42175C
oklch(30.9% 0.12 309.6)
- #223800
#223800
oklch(31% 0.083 129.8)
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 #42175C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Plum Purple #4E0550 ΔE 0.041
- Royal Purple #4B006E ΔE 0.043
- Deep Violet #490648 ΔE 0.046
- Eggplant Purple #430541 ΔE 0.055
- Grape Purple #5D1451 ΔE 0.064
- Dark Purple #35063E ΔE 0.069
- Indigo #4B0082 ΔE 0.070
- Deep Purple #36013F ΔE 0.071
Use #42175C 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.