#5A3F71
Closest named color: Dark Slate Blue (#483D8B). oklch(42% 0.086 308), rgb(90, 63, 113).
Aa
White text reads best on this color (8.80:1).
About this color
#5A3F71 is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.086 and its hue 308°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.055 away. White text reads best on it, at 8.80:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.086) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.38:1 |
| White text | 8.80:1 |
Values
| HEX | #5A3F71 |
| RGB | rgb(90, 63, 113) |
| HSL | hsl(272, 28%, 35%) |
| OKLCH | oklch(42% 0.086 308) |
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 #5A3F71 | 8.80:1 | AAA | Lc -94.5 | Preferred for body text |
| Black text on #5A3F71 | 2.38:1 | Fails | Lc 14.0 | Not readable |
| #5A3F71 text on white | 8.80:1 | AAA | Lc 90.0 | Preferred for body text |
| #5A3F71 text on black | 2.38:1 | Fails | Lc -12.3 | 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 800.
-
Step 50
50
#F7F4F9
oklch(97.1% 0.007 312.3)
-
Step 100
100
#ECE7F2
oklch(93.5% 0.016 306.4)
-
Step 200
200
#DED5E8
oklch(88.6% 0.027 307)
-
Step 300
300
#CAB8DA
oklch(80.8% 0.051 309)
-
Step 400
400
#AE93C8
oklch(70.6% 0.081 307.6)
-
Step 500
500
#9B78BA
oklch(63.2% 0.104 308)
-
Step 600
600
#8560A6
oklch(55.6% 0.112 307.5)
-
Step 700
700
#714F8E
oklch(49.1% 0.104 307.9)
-
Step 800
800 (this color)
#5A3F71
oklch(42% 0.086 308)
-
Step 900
900
#4B375D
oklch(37.6% 0.068 307.6)
-
Step 950
950
#2C2136
oklch(27% 0.041 307.8)
#5A3F71 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) | #344973 | 0.063 |
| Deuteranopia (no green cones) | #3A4B70 | 0.059 |
| Tritanopia (no blue cones) | #574752 | 0.064 |
| Achromatopsia (no color) | #4A4A4A | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5A3F71
#5A3F71
oklch(42% 0.086 308)
- #3F561D
#3F561D
oklch(42.1% 0.087 128.3)
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 #5A3F71, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.055
- Twilight #4E518B ΔE 0.060
- Dusk #4E5481 ΔE 0.060
- Dusty Grape #545775 ΔE 0.068
- Blueberry #464196 ΔE 0.070
- Rebecca Purple #663399 ΔE 0.077
- YInMn Blue #415A77 ΔE 0.082
- Brownish Purple #76424E ΔE 0.082
Use #5A3F71 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.