#6B372D
Closest named color: Purple Brown (#673A3F). oklch(40.1% 0.076 32), rgb(107, 55, 45).
Aa
White text reads best on this color (9.50:1).
About this color
#6B372D is a dark, moderately saturated red. In OKLCH its lightness is 40%, its chroma 0.076 and its hue 32°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.026 away. White text reads best on it, at 9.50:1.
| Hue family | Reds |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.076) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.20:1 |
| White text | 9.50:1 |
Values
| HEX | #6B372D |
| RGB | rgb(107, 55, 45) |
| HSL | hsl(10, 41%, 30%) |
| OKLCH | oklch(40.1% 0.076 32) |
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 #6B372D | 9.50:1 | AAA | Lc -96.0 | Preferred for body text |
| Black text on #6B372D | 2.20:1 | Fails | Lc 12.3 | Not readable |
| #6B372D text on white | 9.50:1 | AAA | Lc 91.7 | Preferred for body text |
| #6B372D text on black | 2.20:1 | Fails | Lc -10.7 | 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
#FAF4F2
oklch(97.1% 0.007 39.5)
-
Step 100
100
#F5E6E3
oklch(93.6% 0.017 31.1)
-
Step 200
200
#EDD2CC
oklch(88.5% 0.031 32.6)
-
Step 300
300
#E3B4AA
oklch(80.9% 0.057 32.1)
-
Step 400
400
#D38B7D
oklch(70.6% 0.091 31.5)
-
Step 500
500
#C66D5B
oklch(63.2% 0.117 32.5)
-
Step 600
600
#B15341
oklch(55.6% 0.127 32.4)
-
Step 700
700
#984333
oklch(49.1% 0.118 32.4)
-
Step 800
800
#7C372B
oklch(42.7% 0.099 31.6)
-
Step 900
900 (this color)
#6B372D
oklch(40.1% 0.076 32)
-
Step 950
950
#3B1D17
oklch(27.1% 0.049 32.3)
#6B372D 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) | #443F2C | 0.076 |
| Deuteranopia (no green cones) | #504A2C | 0.072 |
| Tritanopia (no blue cones) | #752F35 | 0.032 |
| Achromatopsia (no color) | #464646 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B372D
#6B372D
oklch(40.1% 0.076 32)
- #00515E
#00515E
oklch(40% 0.07 213.1)
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 #6B372D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.026
- Chestnut #742802 ΔE 0.045
- Brownish Purple #76424E ΔE 0.056
- Mud Brown #60460F ΔE 0.065
- Red Brown #8B2E16 ΔE 0.066
- Rust Brown #8B3103 ΔE 0.070
- Reddy Brown #6E1005 ΔE 0.074
- Wine Red #7B0323 ΔE 0.081
Use #6B372D 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.