#613647
Closest named color: Purple Brown (#673A3F). oklch(39.2% 0.065 355.4), rgb(97, 54, 71).
Aa
White text reads best on this color (9.87:1).
About this color
#613647 is a dark, muted red. In OKLCH its lightness is 39%, its chroma 0.065 and its hue 355°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.024 away. White text reads best on it, at 9.87:1.
| Hue family | Reds |
| Lightness | dark (39%) |
| Chroma | muted (0.065) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.12:1 |
| White text | 9.87:1 |
Values
| HEX | #613647 |
| RGB | rgb(97, 54, 71) |
| HSL | hsl(336, 28%, 30%) |
| OKLCH | oklch(39.2% 0.065 355.4) |
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 #613647 | 9.87:1 | AAA | Lc -96.9 | Preferred for body text |
| Black text on #613647 | 2.12:1 | Fails | Lc 11.2 | Not readable |
| #613647 text on white | 9.87:1 | AAA | Lc 92.7 | Preferred for body text |
| #613647 text on black | 2.12:1 | Fails | Lc -9.7 | 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 900.
-
Step 50
50
#F9F4F5
oklch(97.1% 0.006 3.3)
-
Step 100
100
#F2E6EA
oklch(93.6% 0.014 355)
-
Step 200
200
#E9D2DA
oklch(88.5% 0.028 354.6)
-
Step 300
300
#DCB4C2
oklch(80.9% 0.05 355.3)
-
Step 400
400
#C98CA3
oklch(70.7% 0.08 355)
-
Step 500
500
#B96F8C
oklch(63.1% 0.1 355.3)
-
Step 600
600
#A45676
oklch(55.5% 0.109 355.3)
-
Step 700
700
#8D4663
oklch(49.2% 0.102 355.7)
-
Step 800
800
#723A51
oklch(42.7% 0.084 355.2)
-
Step 900
900 (this color)
#613647
oklch(39.2% 0.065 355.4)
-
Step 950
950
#361E27
oklch(27% 0.04 356.1)
#613647 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) | #3B3F48 | 0.072 |
| Deuteranopia (no green cones) | #464646 | 0.066 |
| Tritanopia (no blue cones) | #67343C | 0.020 |
| Achromatopsia (no color) | #434343 | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #613647
#613647
oklch(39.2% 0.065 355.4)
- #135144
#135144
oklch(39.3% 0.065 175.5)
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 #613647, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.024
- Brownish Purple #76424E ΔE 0.056
- Charcoal Grey #3C4142 ΔE 0.074
- Onyx #343A40 ΔE 0.085
- Chestnut #742802 ΔE 0.085
- Grape Purple #5D1451 ΔE 0.085
- Merlot #730039 ΔE 0.087
- Velvet #750851 ΔE 0.089
Use #613647 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.