#5C307D
Closest named color: Rebecca Purple (#663399). oklch(40.4% 0.129 308), rgb(92, 48, 125).
Aa
White text reads best on this color (9.65:1).
About this color
#5C307D is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.129 and its hue 308°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.050 away. White text reads best on it, at 9.65:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.129) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.17:1 |
| White text | 9.65:1 |
Values
| HEX | #5C307D |
| RGB | rgb(92, 48, 125) |
| HSL | hsl(274, 45%, 34%) |
| OKLCH | oklch(40.4% 0.129 308) |
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 #5C307D | 9.65:1 | AAA | Lc -96.2 | Preferred for body text |
| Black text on #5C307D | 2.17:1 | Fails | Lc 12.0 | Not readable |
| #5C307D text on white | 9.65:1 | AAA | Lc 92.0 | Preferred for body text |
| #5C307D 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
#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
#CEB4E7
oklch(80.9% 0.076 307.8)
-
Step 400
400
#B58BDA
oklch(70.6% 0.121 308)
-
Step 500
500
#A36CD0
oklch(63% 0.154 308)
-
Step 600
600
#8F52BD
oklch(55.7% 0.167 308.2)
-
Step 700
700
#7942A3
oklch(49.1% 0.155 307.8)
-
Step 800
800 (this color)
#5C307D
oklch(40.4% 0.129 308)
-
Step 900
900
#50306A
oklch(37.6% 0.101 307.7)
-
Step 950
950
#2F1D3E
oklch(27% 0.063 307.9)
#5C307D 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) | #11437F | 0.109 |
| Deuteranopia (no green cones) | #24457B | 0.098 |
| Tritanopia (no blue cones) | #573F51 | 0.093 |
| Achromatopsia (no color) | #454545 | 0.130 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5C307D
#5C307D
oklch(40.4% 0.129 308)
- #385300
#385300
oklch(40.5% 0.106 128)
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 #5C307D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.050
- Dark Slate Blue #483D8B ΔE 0.050
- Blueberry #464196 ΔE 0.065
- Indigo #4B0082 ΔE 0.084
- Twilight #4E518B ΔE 0.085
- Purple #800080 ΔE 0.087
- Grape Purple #5D1451 ΔE 0.087
- Royal Purple #4B006E ΔE 0.091
Use #5C307D 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.