#613C63
Closest named color: Purple Brown (#673A3F). oklch(41.5% 0.078 325.1), rgb(97, 60, 99).
Aa
White text reads best on this color (8.99:1).
About this color
#613C63 is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.078 and its hue 325°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.060 away. White text reads best on it, at 8.99:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.078) |
| Temperature | in between |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.33:1 |
| White text | 8.99:1 |
Values
| HEX | #613C63 |
| RGB | rgb(97, 60, 99) |
| HSL | hsl(297, 25%, 31%) |
| OKLCH | oklch(41.5% 0.078 325.1) |
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 #613C63 | 8.99:1 | AAA | Lc -94.9 | Preferred for body text |
| Black text on #613C63 | 2.33:1 | Fails | Lc 13.5 | Not readable |
| #613C63 text on white | 8.99:1 | AAA | Lc 90.5 | Preferred for body text |
| #613C63 text on black | 2.33:1 | Fails | Lc -11.8 | 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
#EFE7EF
oklch(93.7% 0.014 325.7)
-
Step 200
200
#E2D4E2
oklch(88.5% 0.024 325.8)
-
Step 300
300
#D0B7D1
oklch(80.9% 0.045 324.8)
-
Step 400
400
#B891BA
oklch(70.6% 0.073 324.7)
-
Step 500
500
#A676A9
oklch(63.2% 0.093 324.6)
-
Step 600
600
#915D94
oklch(55.5% 0.102 324.9)
-
Step 700
700
#7B4D7E
oklch(49.1% 0.094 324.7)
-
Step 800
800 (this color)
#613C63
oklch(41.5% 0.078 325.1)
-
Step 900
900
#523653
oklch(37.7% 0.06 325.5)
-
Step 950
950
#302031
oklch(27.1% 0.038 324.6)
#613C63 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) | #384664 | 0.072 |
| Deuteranopia (no green cones) | #424B62 | 0.066 |
| Tritanopia (no blue cones) | #63404B | 0.046 |
| Achromatopsia (no color) | #494949 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #613C63
#613C63
oklch(41.5% 0.078 325.1)
- #2E5730
#2E5730
oklch(41.6% 0.079 145)
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 #613C63, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.060
- Brownish Purple #76424E ΔE 0.061
- Dusty Grape #545775 ΔE 0.076
- Dusk #4E5481 ΔE 0.077
- Dark Slate Blue #483D8B ΔE 0.081
- Twilight #4E518B ΔE 0.081
- Dark Mauve #874C62 ΔE 0.090
- Grape Purple #5D1451 ΔE 0.090
Use #613C63 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.