#6B3753
Closest named color: Purple Brown (#673A3F). oklch(41.2% 0.082 347.8), rgb(107, 55, 83).
Aa
White text reads best on this color (9.14:1).
About this color
#6B3753 is a dark, moderately saturated red. In OKLCH its lightness is 41%, its chroma 0.082 and its hue 348°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.038 away. White text reads best on it, at 9.14:1.
| Hue family | Reds |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.082) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.29:1 |
| White text | 9.14:1 |
Values
| HEX | #6B3753 |
| RGB | rgb(107, 55, 83) |
| HSL | hsl(328, 32%, 32%) |
| OKLCH | oklch(41.2% 0.082 347.8) |
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 #6B3753 | 9.14:1 | AAA | Lc -95.2 | Preferred for body text |
| Black text on #6B3753 | 2.29:1 | Fails | Lc 13.2 | Not readable |
| #6B3753 text on white | 9.14:1 | AAA | Lc 90.8 | Preferred for body text |
| #6B3753 text on black | 2.29:1 | 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
#F9F4F6
oklch(97.2% 0.006 350.8)
-
Step 100
100
#F1E6EB
oklch(93.5% 0.014 348)
-
Step 200
200
#E8D2DC
oklch(88.5% 0.028 348.4)
-
Step 300
300
#D9B5C6
oklch(81% 0.047 348.1)
-
Step 400
400
#C58DA9
oklch(70.6% 0.077 347.8)
-
Step 500
500
#B57094
oklch(63% 0.098 347.7)
-
Step 600
600
#A0587E
oklch(55.6% 0.106 348.2)
-
Step 700
700
#89476B
oklch(49.1% 0.1 347.5)
-
Step 800
800 (this color)
#6B3753
oklch(41.2% 0.082 347.8)
-
Step 900
900
#5A3348
oklch(37.7% 0.064 347.1)
-
Step 950
950
#351E2A
oklch(27% 0.041 347.6)
#6B3753 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) | #3C4354 | 0.088 |
| Deuteranopia (no green cones) | #494B52 | 0.080 |
| Tritanopia (no blue cones) | #713641 | 0.032 |
| Achromatopsia (no color) | #484848 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B3753
#6B3753
oklch(41.2% 0.082 347.8)
- #035942
#035942
oklch(41.3% 0.083 167.7)
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 #6B3753, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.038
- Brownish Purple #76424E ΔE 0.042
- Velvet #750851 ΔE 0.078
- Red Purple #820747 ΔE 0.079
- Dark Mauve #874C62 ΔE 0.082
- Wine #80013F ΔE 0.082
- Merlot #730039 ΔE 0.086
- Grape Purple #5D1451 ΔE 0.087
Use #6B3753 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.