#5C3179
Closest named color: Dark Slate Blue (#483D8B). oklch(40.2% 0.122 309.5), rgb(92, 49, 121).
Aa
White text reads best on this color (9.67:1).
About this color
#5C3179 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.122 and its hue 310°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.052 away. White text reads best on it, at 9.67:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.122) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.17:1 |
| White text | 9.67:1 |
Values
| HEX | #5C3179 |
| RGB | rgb(92, 49, 121) |
| HSL | hsl(276, 42%, 33%) |
| OKLCH | oklch(40.2% 0.122 309.5) |
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 #5C3179 | 9.67:1 | AAA | Lc -96.3 | Preferred for body text |
| Black text on #5C3179 | 2.17:1 | Fails | Lc 11.9 | Not readable |
| #5C3179 text on white | 9.67:1 | AAA | Lc 92.1 | Preferred for body text |
| #5C3179 text on black | 2.17:1 | Fails | Lc -10.4 | 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
#EEE6F5
oklch(93.6% 0.022 309.6)
-
Step 200
200
#E1D2ED
oklch(88.4% 0.04 310.2)
-
Step 300
300
#CEB4E4
oklch(80.8% 0.072 309.3)
-
Step 400
400
#B68CD6
oklch(70.7% 0.114 309.7)
-
Step 500
500
#A46ECB
oklch(63.2% 0.145 309.6)
-
Step 600
600
#8F53B8
oklch(55.5% 0.16 309.6)
-
Step 700
700
#7A439F
oklch(49.1% 0.149 309.6)
-
Step 800
800 (this color)
#5C3179
oklch(40.2% 0.122 309.5)
-
Step 900
900
#513167
oklch(37.7% 0.095 309.9)
-
Step 950
950
#2F1D3C
oklch(26.9% 0.06 309.7)
#5C3179 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) | #19437B | 0.104 |
| Deuteranopia (no green cones) | #294577 | 0.092 |
| Tritanopia (no blue cones) | #583E50 | 0.085 |
| Achromatopsia (no color) | #444444 | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5C3179
#5C3179
oklch(40.2% 0.122 309.5)
- #355300
#355300
oklch(40.3% 0.108 129.5)
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 #5C3179, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.052
- Rebecca Purple #663399 ΔE 0.056
- Blueberry #464196 ΔE 0.068
- Grape Purple #5D1451 ΔE 0.083
- Twilight #4E518B ΔE 0.084
- Indigo #4B0082 ΔE 0.088
- Purple #800080 ΔE 0.089
- Rich Purple #720058 ΔE 0.091
Use #5C3179 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.