#613A66
Closest named color: Purple Brown (#673A3F). oklch(41.3% 0.086 322.8), rgb(97, 58, 102).
Aa
White text reads best on this color (9.10:1).
About this color
#613A66 is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.086 and its hue 323°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.067 away. White text reads best on it, at 9.10:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.086) |
| Temperature | in between |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.30:1 |
| White text | 9.10:1 |
Values
| HEX | #613A66 |
| RGB | rgb(97, 58, 102) |
| HSL | hsl(293, 28%, 31%) |
| OKLCH | oklch(41.3% 0.086 322.8) |
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 #613A66 | 9.10:1 | AAA | Lc -95.2 | Preferred for body text |
| Black text on #613A66 | 2.30:1 | Fails | Lc 13.2 | Not readable |
| #613A66 text on white | 9.10:1 | AAA | Lc 90.8 | Preferred for body text |
| #613A66 text on black | 2.30:1 | Fails | Lc -11.5 | 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
#EFE7F0
oklch(93.7% 0.015 322.3)
-
Step 200
200
#E2D3E4
oklch(88.4% 0.028 322.2)
-
Step 300
300
#D1B6D4
oklch(80.9% 0.051 322.9)
-
Step 400
400
#B990BE
oklch(70.7% 0.08 322.8)
-
Step 500
500
#A774AD
oklch(63.1% 0.101 323)
-
Step 600
600
#925C99
oklch(55.7% 0.11 322.8)
-
Step 700
700
#7C4B83
oklch(49.1% 0.104 322.4)
-
Step 800
800 (this color)
#613A66
oklch(41.3% 0.086 322.8)
-
Step 900
900
#523556
oklch(37.6% 0.066 322.5)
-
Step 950
950
#301F32
oklch(26.9% 0.042 323)
#613A66 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) | #354568 | 0.077 |
| Deuteranopia (no green cones) | #3F4A65 | 0.071 |
| Tritanopia (no blue cones) | #623F4B | 0.052 |
| Achromatopsia (no color) | #484848 | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #613A66
#613A66
oklch(41.3% 0.086 322.8)
- #2D572A
#2D572A
oklch(41.4% 0.086 142.5)
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 #613A66, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.067
- Brownish Purple #76424E ΔE 0.067
- Dark Slate Blue #483D8B ΔE 0.076
- Dusk #4E5481 ΔE 0.079
- Dusty Grape #545775 ΔE 0.080
- Twilight #4E518B ΔE 0.081
- Grape Purple #5D1451 ΔE 0.086
- Rebecca Purple #663399 ΔE 0.089
Use #613A66 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.