#6B313F
Closest named color: Purple Brown (#673A3F). oklch(39.5% 0.084 6.5), rgb(107, 49, 63).
Aa
White text reads best on this color (9.83:1).
About this color
#6B313F is a dark, moderately saturated red. In OKLCH its lightness is 40%, its chroma 0.084 and its hue 6°. 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 9.83:1.
| Hue family | Reds |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.084) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.13:1 |
| White text | 9.83:1 |
Values
| HEX | #6B313F |
| RGB | rgb(107, 49, 63) |
| HSL | hsl(346, 37%, 31%) |
| OKLCH | oklch(39.5% 0.084 6.5) |
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 #6B313F | 9.83:1 | AAA | Lc -96.6 | Preferred for body text |
| Black text on #6B313F | 2.13:1 | Fails | Lc 11.5 | Not readable |
| #6B313F text on white | 9.83:1 | AAA | Lc 92.4 | Preferred for body text |
| #6B313F text on black | 2.13:1 | Fails | Lc -10.0 | 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
#FBF3F4
oklch(97.1% 0.009 8.5)
-
Step 100
100
#F5E5E8
oklch(93.5% 0.018 4.5)
-
Step 200
200
#EFD0D5
oklch(88.5% 0.035 6.8)
-
Step 300
300
#E5B0BA
oklch(80.8% 0.063 6)
-
Step 400
400
#D68696
oklch(70.7% 0.1 6.9)
-
Step 500
500
#C9657D
oklch(63.1% 0.129 6.3)
-
Step 600
600
#B44A66
oklch(55.6% 0.14 6.4)
-
Step 700
700
#9B3B55
oklch(49.2% 0.13 6.5)
-
Step 800
800
#7E3145
oklch(42.7% 0.108 6.8)
-
Step 900
900 (this color)
#6B313F
oklch(39.5% 0.084 6.5)
-
Step 950
950
#3C1A22
oklch(27% 0.054 6.5)
#6B313F 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) | #3C3C3F | 0.091 |
| Deuteranopia (no green cones) | #4A483E | 0.086 |
| Tritanopia (no blue cones) | #742B36 | 0.023 |
| Achromatopsia (no color) | #434343 | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B313F
#6B313F
oklch(39.5% 0.084 6.5)
- #00524C
#00524C
oklch(39.5% 0.069 186.3)
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 #6B313F, 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 0.051
- Chestnut #742802 ΔE 0.068
- Bordeaux #7B002C ΔE 0.069
- Wine Red #7B0323 ΔE 0.070
- Merlot #730039 ΔE 0.072
- Wine #80013F ΔE 0.073
- Red Purple #820747 ΔE 0.075
Use #6B313F 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.