#5B3A7E
Closest named color: Dark Slate Blue (#483D8B). oklch(41.9% 0.113 304.4), rgb(91, 58, 126).
Aa
White text reads best on this color (8.93:1).
About this color
#5B3A7E is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.113 and its hue 304°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.040 away. White text reads best on it, at 8.93:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.113) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.35:1 |
| White text | 8.93:1 |
Values
| HEX | #5B3A7E |
| RGB | rgb(91, 58, 126) |
| HSL | hsl(269, 37%, 36%) |
| OKLCH | oklch(41.9% 0.113 304.4) |
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 #5B3A7E | 8.93:1 | AAA | Lc -94.7 | Preferred for body text |
| Black text on #5B3A7E | 2.35:1 | Fails | Lc 13.7 | Not readable |
| #5B3A7E text on white | 8.93:1 | AAA | Lc 90.2 | Preferred for body text |
| #5B3A7E text on black | 2.35:1 | Fails | Lc -12.0 | 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
#F7F4FA
oklch(97.1% 0.009 308.4)
-
Step 100
100
#ECE7F5
oklch(93.6% 0.019 302.2)
-
Step 200
200
#DED4ED
oklch(88.6% 0.036 303.8)
-
Step 300
300
#CAB7E4
oklch(81% 0.066 304.2)
-
Step 400
400
#AF90D6
oklch(70.7% 0.105 304.2)
-
Step 500
500
#9C72CB
oklch(63% 0.136 304.6)
-
Step 600
600
#8759B8
oklch(55.6% 0.148 304.4)
-
Step 700
700
#72499E
oklch(49.1% 0.136 304.1)
-
Step 800
800 (this color)
#5B3A7E
oklch(41.9% 0.113 304.4)
-
Step 900
900
#4C3467
oklch(37.7% 0.088 304.2)
-
Step 950
950
#2D1F3C
oklch(27.1% 0.055 305.3)
#5B3A7E 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) | #244980 | 0.086 |
| Deuteranopia (no green cones) | #2E4A7C | 0.078 |
| Tritanopia (no blue cones) | #554656 | 0.083 |
| Achromatopsia (no color) | #4A4A4A | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B3A7E
#5B3A7E
oklch(41.9% 0.113 304.4)
- #415600
#415600
oklch(42% 0.105 124.3)
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 #5B3A7E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.040
- Rebecca Purple #663399 ΔE 0.052
- Blueberry #464196 ΔE 0.054
- Twilight #4E518B ΔE 0.063
- Dusk #4E5481 ΔE 0.071
- Dusty Grape #545775 ΔE 0.086
- Cobalt #1E488F ΔE 0.091
- Dusk Blue #26538D ΔE 0.093
Use #5B3A7E 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.