#5A357D
Closest named color: Dark Slate Blue (#483D8B). oklch(40.9% 0.12 305.4), rgb(90, 53, 125).
Aa
White text reads best on this color (9.37:1).
About this color
#5A357D is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.120 and its hue 305°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.042 away. White text reads best on it, at 9.37:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.120) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.24:1 |
| White text | 9.37:1 |
Values
| HEX | #5A357D |
| RGB | rgb(90, 53, 125) |
| HSL | hsl(271, 40%, 35%) |
| OKLCH | oklch(40.9% 0.12 305.4) |
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 #5A357D | 9.37:1 | AAA | Lc -95.7 | Preferred for body text |
| Black text on #5A357D | 2.24:1 | Fails | Lc 12.6 | Not readable |
| #5A357D text on white | 9.37:1 | AAA | Lc 91.4 | Preferred for body text |
| #5A357D text on black | 2.24:1 | Fails | Lc -11.0 | 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 800.
-
Step 50
50
#F7F4FB
oklch(97.1% 0.01 305.4)
-
Step 100
100
#EDE7F5
oklch(93.7% 0.02 305.3)
-
Step 200
200
#DFD3EE
oklch(88.5% 0.039 305.6)
-
Step 300
300
#CBB6E5
oklch(80.9% 0.069 305.2)
-
Step 400
400
#B18ED8
oklch(70.6% 0.112 305.4)
-
Step 500
500
#9E70CE
oklch(63% 0.144 305.2)
-
Step 600
600
#8A56BB
oklch(55.6% 0.157 305.7)
-
Step 700
700
#7546A1
oklch(49.1% 0.145 305.6)
-
Step 800
800 (this color)
#5A357D
oklch(40.9% 0.12 305.4)
-
Step 900
900
#4E3369
oklch(37.8% 0.093 305.5)
-
Step 950
950
#2D1E3D
oklch(26.9% 0.059 305.1)
#5A357D 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) | #1B457F | 0.095 |
| Deuteranopia (no green cones) | #28477B | 0.086 |
| Tritanopia (no blue cones) | #544353 | 0.089 |
| Achromatopsia (no color) | #464646 | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5A357D
#5A357D
oklch(40.9% 0.12 305.4)
- #3D5300
#3D5300
oklch(40.9% 0.103 125.3)
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 #5A357D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.042
- Rebecca Purple #663399 ΔE 0.051
- Blueberry #464196 ΔE 0.058
- Twilight #4E518B ΔE 0.074
- Dusk #4E5481 ΔE 0.083
- Indigo #4B0082 ΔE 0.092
- Grape Purple #5D1451 ΔE 0.093
- Cobalt #1E488F ΔE 0.095
Use #5A357D 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.