#5B347C
Closest named color: Dark Slate Blue (#483D8B). oklch(40.8% 0.121 306.8), rgb(91, 52, 124).
Aa
White text reads best on this color (9.42:1).
About this color
#5B347C is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.121 and its hue 307°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.045 away. White text reads best on it, at 9.42:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.121) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.22:1 |
| White text | 9.42:1 |
Values
| HEX | #5B347C |
| RGB | rgb(91, 52, 124) |
| HSL | hsl(273, 41%, 35%) |
| OKLCH | oklch(40.8% 0.121 306.8) |
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 #5B347C | 9.42:1 | AAA | Lc -95.8 | Preferred for body text |
| Black text on #5B347C | 2.22:1 | Fails | Lc 12.5 | Not readable |
| #5B347C text on white | 9.42:1 | AAA | Lc 91.5 | Preferred for body text |
| #5B347C text on black | 2.22:1 | Fails | Lc -10.9 | 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
#E0D3EE
oklch(88.6% 0.039 307.2)
-
Step 300
300
#CCB5E5
oklch(80.8% 0.071 306.6)
-
Step 400
400
#B38DD8
oklch(70.7% 0.114 306.9)
-
Step 500
500
#A06FCD
oklch(63% 0.145 306.8)
-
Step 600
600
#8B55BA
oklch(55.5% 0.158 306.7)
-
Step 700
700
#7645A0
oklch(49% 0.146 306.7)
-
Step 800
800 (this color)
#5B347C
oklch(40.8% 0.121 306.8)
-
Step 900
900
#4F3268
oklch(37.7% 0.094 307.3)
-
Step 950
950
#2E1E3D
oklch(27% 0.059 306.7)
#5B347C 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) | #1B457E | 0.098 |
| Deuteranopia (no green cones) | #29467A | 0.087 |
| Tritanopia (no blue cones) | #564153 | 0.086 |
| Achromatopsia (no color) | #464646 | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B347C
#5B347C
oklch(40.8% 0.121 306.8)
- #3B5300
#3B5300
oklch(40.7% 0.104 126.4)
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 #5B347C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.045
- Rebecca Purple #663399 ΔE 0.052
- Blueberry #464196 ΔE 0.061
- Twilight #4E518B ΔE 0.077
- Dusk #4E5481 ΔE 0.086
- Grape Purple #5D1451 ΔE 0.091
- Indigo #4B0082 ΔE 0.091
- Purple #800080 ΔE 0.093
Use #5B347C 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.