#54178E
Closest named color: Indigo (#4B0082). oklch(37.7% 0.177 300.9), rgb(84, 23, 142).
Aa
White text reads best on this color (11.11:1).
About this color
#54178E is a dark, vivid purple. In OKLCH its lightness is 38%, its chroma 0.177 and its hue 301°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Indigo (#4B0082), ΔE 0.038 away. White text reads best on it, at 11.11:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | vivid (0.177) |
| Temperature | in between |
| Nearest name | Indigo (#4B0082) |
| Black text | 1.89:1 |
| White text | 11.11:1 |
Values
| HEX | #54178E |
| RGB | rgb(84, 23, 142) |
| HSL | hsl(271, 72%, 32%) |
| OKLCH | oklch(37.7% 0.177 300.9) |
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 #54178E | 11.11:1 | AAA | Lc -98.5 | Preferred for body text |
| Black text on #54178E | 1.89:1 | Fails | Lc 9.4 | Not readable |
| #54178E text on white | 11.11:1 | AAA | Lc 94.5 | Preferred for body text |
| #54178E text on black | 1.89:1 | Fails | Lc -8.1 | 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
#F7F3FF
oklch(97.1% 0.016 301.2)
-
Step 100
100
#EEE5FF
oklch(93.7% 0.036 301.4)
-
Step 200
200
#E0D0FF
oklch(88.6% 0.066 300.6)
-
Step 300
300
#CDAFFF
oklch(80.9% 0.115 301.1)
-
Step 400
400
#B581FF
oklch(70.8% 0.182 300.9)
-
Step 500
500
#A557FF
oklch(63.2% 0.238 301.1)
-
Step 600
600
#9600FF
oklch(55.6% 0.295 301)
-
Step 700
700
#7E00D8
oklch(49% 0.26 300.9)
-
Step 800
800
#6800B3
oklch(42.7% 0.226 301.1)
-
Step 900
900 (this color)
#54178E
oklch(37.7% 0.177 300.9)
-
Step 950
950
#311153
oklch(27% 0.113 301.2)
#54178E 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) | #003B91 | 0.118 |
| Deuteranopia (no green cones) | #003B8C | 0.119 |
| Tritanopia (no blue cones) | #473954 | 0.129 |
| Achromatopsia (no color) | #3C3C3C | 0.178 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #54178E
#54178E
oklch(37.7% 0.177 300.9)
- #3B4800
#3B4800
oklch(37.7% 0.09 120.7)
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 #54178E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Indigo #4B0082 ΔE 0.038
- Chrysanthemum #560BAD ΔE 0.051
- Imperial Purple #480CA8 ΔE 0.053
- Royal Purple #4B006E ΔE 0.065
- Rebecca Purple #663399 ΔE 0.066
- Dark Slate Blue #483D8B ΔE 0.075
- Indigo Blue #3A18B1 ΔE 0.082
- Blueberry #464196 ΔE 0.084
Use #54178E 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.