#6B3555
Closest named color: Purple Brown (#673A3F). oklch(41% 0.088 345.1), rgb(107, 53, 85).
Aa
White text reads best on this color (9.26:1).
About this color
#6B3555 is a dark, moderately saturated red. In OKLCH its lightness is 41%, its chroma 0.088 and its hue 345°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.044 away. White text reads best on it, at 9.26:1.
| Hue family | Reds |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.088) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.26:1 |
| White text | 9.26:1 |
Values
| HEX | #6B3555 |
| RGB | rgb(107, 53, 85) |
| HSL | hsl(324, 34%, 31%) |
| OKLCH | oklch(41% 0.088 345.1) |
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 #6B3555 | 9.26:1 | AAA | Lc -95.4 | Preferred for body text |
| Black text on #6B3555 | 2.26:1 | Fails | Lc 12.9 | Not readable |
| #6B3555 text on white | 9.26:1 | AAA | Lc 91.1 | Preferred for body text |
| #6B3555 text on black | 2.26:1 | 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
#F9F4F6
oklch(97.2% 0.006 350.8)
-
Step 100
100
#F2E6EC
oklch(93.6% 0.015 345.6)
-
Step 200
200
#E8D2DD
oklch(88.5% 0.028 346)
-
Step 300
300
#DAB4C8
oklch(80.9% 0.051 345.3)
-
Step 400
400
#C68CAC
oklch(70.7% 0.082 345.2)
-
Step 500
500
#B66F98
oklch(63.1% 0.104 344.9)
-
Step 600
600
#A15682
oklch(55.6% 0.113 345.2)
-
Step 700
700
#8A466E
oklch(49.2% 0.105 345.4)
-
Step 800
800 (this color)
#6B3555
oklch(41% 0.088 345.1)
-
Step 900
900
#5B324A
oklch(37.7% 0.068 344.8)
-
Step 950
950
#351E2B
oklch(27% 0.041 345.3)
#6B3555 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) | #394256 | 0.094 |
| Deuteranopia (no green cones) | #484B54 | 0.085 |
| Tritanopia (no blue cones) | #713541 | 0.036 |
| Achromatopsia (no color) | #474747 | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B3555
#6B3555
oklch(41% 0.088 345.1)
- #00593F
#00593F
oklch(41.1% 0.086 165.2)
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 #6B3555, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.044
- Brownish Purple #76424E ΔE 0.048
- Velvet #750851 ΔE 0.073
- Red Purple #820747 ΔE 0.075
- Wine #80013F ΔE 0.079
- Grape Purple #5D1451 ΔE 0.081
- Merlot #730039 ΔE 0.083
- Rich Purple #720058 ΔE 0.083
Use #6B3555 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.