#5B3885
Closest named color: Dark Slate Blue (#483D8B). oklch(42.1% 0.126 302.3), rgb(91, 56, 133).
Aa
White text reads best on this color (8.93:1).
About this color
#5B3885 is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.126 and its hue 302°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.036 away. White text reads best on it, at 8.93:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.126) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.34:1 |
| White text | 8.93:1 |
Values
| HEX | #5B3885 |
| RGB | rgb(91, 56, 133) |
| HSL | hsl(267, 41%, 37%) |
| OKLCH | oklch(42.1% 0.126 302.3) |
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 #5B3885 | 8.93:1 | AAA | Lc -94.6 | Preferred for body text |
| Black text on #5B3885 | 2.34:1 | Fails | Lc 13.8 | Not readable |
| #5B3885 text on white | 8.93:1 | AAA | Lc 90.2 | Preferred for body text |
| #5B3885 text on black | 2.34:1 | Fails | Lc -12.1 | 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 800.
-
Step 50
50
#F6F4FB
oklch(97.1% 0.009 299.2)
-
Step 100
100
#ECE7F6
oklch(93.6% 0.021 301.1)
-
Step 200
200
#DED3F0
oklch(88.5% 0.041 302.8)
-
Step 300
300
#C9B6E9
oklch(80.9% 0.074 301.8)
-
Step 400
400
#AF8EDD
oklch(70.7% 0.118 302.7)
-
Step 500
500
#9B70D4
oklch(63.1% 0.15 302.1)
-
Step 600
600
#8656C1
oklch(55.6% 0.163 302.1)
-
Step 700
700
#7246A7
oklch(49.2% 0.152 302)
-
Step 800
800 (this color)
#5B3885
oklch(42.1% 0.126 302.3)
-
Step 900
900
#4C326C
oklch(37.6% 0.099 302.6)
-
Step 950
950
#2C1E3F
oklch(26.9% 0.062 302)
#5B3885 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) | #194988 | 0.095 |
| Deuteranopia (no green cones) | #264983 | 0.086 |
| Tritanopia (no blue cones) | #534759 | 0.094 |
| Achromatopsia (no color) | #494949 | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B3885
#5B3885
oklch(42.1% 0.126 302.3)
- #445500
#445500
oklch(42% 0.102 122)
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 #5B3885, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.036
- Rebecca Purple #663399 ΔE 0.040
- Blueberry #464196 ΔE 0.048
- Twilight #4E518B ΔE 0.066
- Dusk #4E5481 ΔE 0.078
- Cobalt #1E488F ΔE 0.091
- Chrysanthemum #560BAD ΔE 0.094
- Dusty Grape #545775 ΔE 0.095
Use #5B3885 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.