#5C307C
Closest named color: Dark Slate Blue (#483D8B). oklch(40.3% 0.128 308.4), rgb(92, 48, 124).
Aa
White text reads best on this color (9.68:1).
About this color
#5C307C is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.128 and its hue 308°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.050 away. White text reads best on it, at 9.68:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.128) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.16:1 |
| White text | 9.68:1 |
Values
| HEX | #5C307C |
| RGB | rgb(92, 48, 124) |
| HSL | hsl(275, 44%, 34%) |
| OKLCH | oklch(40.3% 0.128 308.4) |
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 #5C307C | 9.68:1 | AAA | Lc -96.3 | Preferred for body text |
| Black text on #5C307C | 2.16:1 | Fails | Lc 11.9 | Not readable |
| #5C307C text on white | 9.68:1 | AAA | Lc 92.0 | Preferred for body text |
| #5C307C text on black | 2.16:1 | 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
#F7F4FB
oklch(97.1% 0.01 305.4)
-
Step 100
100
#EEE6F5
oklch(93.6% 0.022 309.6)
-
Step 200
200
#E1D2EF
oklch(88.5% 0.042 308.6)
-
Step 300
300
#CEB4E6
oklch(80.9% 0.075 308.3)
-
Step 400
400
#B68BDA
oklch(70.7% 0.121 308.5)
-
Step 500
500
#A46CCF
oklch(63.1% 0.153 308.7)
-
Step 600
600
#8F52BC
oklch(55.6% 0.166 308.5)
-
Step 700
700
#7A42A2
oklch(49.2% 0.154 308.7)
-
Step 800
800 (this color)
#5C307C
oklch(40.3% 0.128 308.4)
-
Step 900
900
#513069
oklch(37.7% 0.1 309.1)
-
Step 950
950
#2F1D3E
oklch(27% 0.063 307.9)
#5C307C 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) | #12437E | 0.109 |
| Deuteranopia (no green cones) | #25457A | 0.097 |
| Tritanopia (no blue cones) | #573E51 | 0.090 |
| Achromatopsia (no color) | #444444 | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5C307C
#5C307C
oklch(40.3% 0.128 308.4)
- #375300
#375300
oklch(40.4% 0.107 128.5)
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 #5C307C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.050
- Rebecca Purple #663399 ΔE 0.051
- Blueberry #464196 ΔE 0.066
- Indigo #4B0082 ΔE 0.084
- Twilight #4E518B ΔE 0.086
- Grape Purple #5D1451 ΔE 0.086
- Purple #800080 ΔE 0.087
- Royal Purple #4B006E ΔE 0.090
Use #5C307C 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.