#613C66
Closest named color: Brownish Purple (#76424E). oklch(41.7% 0.082 322.6), rgb(97, 60, 102).
Aa
White text reads best on this color (8.94:1).
About this color
#613C66 is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.082 and its hue 323°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Brownish Purple (#76424E), ΔE 0.064 away. White text reads best on it, at 8.94:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.082) |
| Temperature | in between |
| Nearest name | Brownish Purple (#76424E) |
| Black text | 2.34:1 |
| White text | 8.94:1 |
Values
| HEX | #613C66 |
| RGB | rgb(97, 60, 102) |
| HSL | hsl(293, 26%, 32%) |
| OKLCH | oklch(41.7% 0.082 322.6) |
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 #613C66 | 8.94:1 | AAA | Lc -94.8 | Preferred for body text |
| Black text on #613C66 | 2.34:1 | Fails | Lc 13.6 | Not readable |
| #613C66 text on white | 8.94:1 | AAA | Lc 90.4 | Preferred for body text |
| #613C66 text on black | 2.34:1 | Fails | Lc -11.9 | 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
#F8F4F8
oklch(97.1% 0.007 325.6)
-
Step 100
100
#EEE7EF
oklch(93.6% 0.013 321.9)
-
Step 200
200
#E2D4E4
oklch(88.6% 0.026 321.9)
-
Step 300
300
#D0B7D3
oklch(80.9% 0.047 322.6)
-
Step 400
400
#B891BD
oklch(70.7% 0.077 322.6)
-
Step 500
500
#A675AC
oklch(63.1% 0.098 322.9)
-
Step 600
600
#915D97
oklch(55.6% 0.106 323.2)
-
Step 700
700
#7B4C81
oklch(49% 0.099 322.8)
-
Step 800
800 (this color)
#613C66
oklch(41.7% 0.082 322.6)
-
Step 900
900
#523655
oklch(37.8% 0.063 323.3)
-
Step 950
950
#302032
oklch(27.1% 0.04 322.8)
#613C66 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) | #374768 | 0.074 |
| Deuteranopia (no green cones) | #414B65 | 0.066 |
| Tritanopia (no blue cones) | #62414C | 0.050 |
| Achromatopsia (no color) | #494949 | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #613C66
#613C66
oklch(41.7% 0.082 322.6)
- #30572D
#30572D
oklch(41.6% 0.081 142.5)
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 #613C66, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brownish Purple #76424E ΔE 0.064
- Purple Brown #673A3F ΔE 0.065
- Dusk #4E5481 ΔE 0.075
- Dusty Grape #545775 ΔE 0.075
- Dark Slate Blue #483D8B ΔE 0.077
- Twilight #4E518B ΔE 0.078
- Grape Purple #5D1451 ΔE 0.091
- Rebecca Purple #663399 ΔE 0.091
Use #613C66 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.