#613B5B
Closest named color: Purple Brown (#673A3F). oklch(40.9% 0.071 332.7), rgb(97, 59, 91).
Aa
White text reads best on this color (9.19:1).
About this color
#613B5B is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.071 and its hue 333°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.048 away. White text reads best on it, at 9.19:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.071) |
| Temperature | in between |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.28:1 |
| White text | 9.19:1 |
Values
| HEX | #613B5B |
| RGB | rgb(97, 59, 91) |
| HSL | hsl(309, 24%, 31%) |
| OKLCH | oklch(40.9% 0.071 332.7) |
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 #613B5B | 9.19:1 | AAA | Lc -95.4 | Preferred for body text |
| Black text on #613B5B | 2.28:1 | Fails | Lc 12.9 | Not readable |
| #613B5B text on white | 9.19:1 | AAA | Lc 91.0 | Preferred for body text |
| #613B5B text on black | 2.28:1 | Fails | Lc -11.3 | 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
#F8F4F7
oklch(97.1% 0.006 334)
-
Step 100
100
#EFE7ED
oklch(93.6% 0.012 334.1)
-
Step 200
200
#E3D4E0
oklch(88.6% 0.023 332.4)
-
Step 300
300
#D2B7CC
oklch(80.9% 0.042 333.6)
-
Step 400
400
#BA92B3
oklch(70.8% 0.066 332.3)
-
Step 500
500
#A976A0
oklch(63.1% 0.086 332.9)
-
Step 600
600
#935E8B
oklch(55.5% 0.093 332.3)
-
Step 700
700
#7D4D76
oklch(49% 0.087 332.2)
-
Step 800
800 (this color)
#613B5B
oklch(40.9% 0.071 332.7)
-
Step 900
900
#53364E
oklch(37.6% 0.056 332.9)
-
Step 950
950
#31202E
oklch(27% 0.035 332.9)
#613B5B 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) | #3A445C | 0.070 |
| Deuteranopia (no green cones) | #444A5A | 0.064 |
| Tritanopia (no blue cones) | #643D47 | 0.037 |
| Achromatopsia (no color) | #484848 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #613B5B
#613B5B
oklch(40.9% 0.071 332.7)
- #285537
#285537
oklch(40.8% 0.071 152.9)
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 #613B5B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.048
- Brownish Purple #76424E ΔE 0.055
- Dusty Grape #545775 ΔE 0.081
- Charcoal Grey #3C4142 ΔE 0.085
- Dusk #4E5481 ΔE 0.085
- Grape Purple #5D1451 ΔE 0.088
- Dark Mauve #874C62 ΔE 0.091
- Velvet #750851 ΔE 0.091
Use #613B5B 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.