#6D3440
Closest named color: Purple Brown (#673A3F). oklch(40.4% 0.082 8.1), rgb(109, 52, 64).
Aa
White text reads best on this color (9.47:1).
About this color
#6D3440 is a dark, moderately saturated red. In OKLCH its lightness is 40%, its chroma 0.082 and its hue 8°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.019 away. White text reads best on it, at 9.47:1.
| Hue family | Reds |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.082) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.21:1 |
| White text | 9.47:1 |
Values
| HEX | #6D3440 |
| RGB | rgb(109, 52, 64) |
| HSL | hsl(347, 35%, 32%) |
| OKLCH | oklch(40.4% 0.082 8.1) |
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 #6D3440 | 9.47:1 | AAA | Lc -95.9 | Preferred for body text |
| Black text on #6D3440 | 2.21:1 | Fails | Lc 12.4 | Not readable |
| #6D3440 text on white | 9.47:1 | AAA | Lc 91.6 | Preferred for body text |
| #6D3440 text on black | 2.21:1 | Fails | Lc -10.8 | 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
#FAF4F4
oklch(97.2% 0.006 17.3)
-
Step 100
100
#F3E6E8
oklch(93.6% 0.014 6.7)
-
Step 200
200
#EAD2D6
oklch(88.5% 0.027 6.2)
-
Step 300
300
#DDB4BB
oklch(80.8% 0.048 6.7)
-
Step 400
400
#CB8D97
oklch(70.7% 0.076 8.6)
-
Step 500
500
#BC707E
oklch(63.2% 0.097 8.3)
-
Step 600
600
#A75767
oklch(55.6% 0.106 8.4)
-
Step 700
700
#8F4756
oklch(49.2% 0.098 8.2)
-
Step 800
800 (this color)
#6D3440
oklch(40.4% 0.082 8.1)
-
Step 900
900
#5E323B
oklch(37.6% 0.064 7.5)
-
Step 950
950
#371E23
oklch(27% 0.04 7.1)
#6D3440 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) | #3E3F40 | 0.091 |
| Deuteranopia (no green cones) | #4D4A3F | 0.083 |
| Tritanopia (no blue cones) | #762E38 | 0.022 |
| Achromatopsia (no color) | #464646 | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6D3440
#6D3440
oklch(40.4% 0.082 8.1)
- #005550
#005550
oklch(40.5% 0.07 187.9)
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 #6D3440, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.019
- Brownish Purple #76424E ΔE 0.043
- Chestnut #742802 ΔE 0.068
- Wine Red #7B0323 ΔE 0.074
- Bordeaux #7B002C ΔE 0.074
- Red Brown #8B2E16 ΔE 0.077
- Wine #80013F ΔE 0.077
- Red Purple #820747 ΔE 0.078
Use #6D3440 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.