#6B313B
Closest named color: Purple Brown (#673A3F). oklch(39.4% 0.083 10.9), rgb(107, 49, 59).
Aa
White text reads best on this color (9.87:1).
About this color
#6B313B is a dark, moderately saturated red. In OKLCH its lightness is 39%, its chroma 0.083 and its hue 11°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.022 away. White text reads best on it, at 9.87:1.
| Hue family | Reds |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.083) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.12:1 |
| White text | 9.87:1 |
Values
| HEX | #6B313B |
| RGB | rgb(107, 49, 59) |
| HSL | hsl(350, 37%, 31%) |
| OKLCH | oklch(39.4% 0.083 10.9) |
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 #6B313B | 9.87:1 | AAA | Lc -96.7 | Preferred for body text |
| Black text on #6B313B | 2.12:1 | Fails | Lc 11.4 | Not readable |
| #6B313B text on white | 9.87:1 | AAA | Lc 92.5 | Preferred for body text |
| #6B313B text on black | 2.12:1 | Fails | Lc -9.9 | 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
#F6E5E7
oklch(93.6% 0.019 9.3)
-
Step 200
200
#EFD0D3
oklch(88.4% 0.035 11.2)
-
Step 300
300
#E6B1B7
oklch(81% 0.062 11)
-
Step 400
400
#D78691
oklch(70.7% 0.1 11.1)
-
Step 500
500
#CA6676
oklch(63.2% 0.127 11.3)
-
Step 600
600
#B54B5F
oklch(55.7% 0.138 11.1)
-
Step 700
700
#9B3B4F
oklch(49.1% 0.129 10.5)
-
Step 800
800
#7E3240
oklch(42.7% 0.106 11.4)
-
Step 900
900 (this color)
#6B313B
oklch(39.4% 0.083 10.9)
-
Step 950
950
#3C1B20
oklch(27.1% 0.052 11.6)
#6B313B 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) | #3C3C3B | 0.092 |
| Deuteranopia (no green cones) | #4B483A | 0.085 |
| Tritanopia (no blue cones) | #742A35 | 0.022 |
| Achromatopsia (no color) | #434343 | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B313B
#6B313B
oklch(39.4% 0.083 10.9)
- #00514F
#00514F
oklch(39.3% 0.067 191.9)
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 #6B313B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.022
- Brownish Purple #76424E ΔE 0.053
- Chestnut #742802 ΔE 0.062
- Wine Red #7B0323 ΔE 0.068
- Bordeaux #7B002C ΔE 0.069
- Merlot #730039 ΔE 0.074
- Reddy Brown #6E1005 ΔE 0.074
- Wine #80013F ΔE 0.076
Use #6B313B 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.