#6B372A
Closest named color: Purple Brown (#673A3F). oklch(40% 0.077 35), rgb(107, 55, 42).
Aa
White text reads best on this color (9.52:1).
About this color
#6B372A is a dark, moderately saturated red. In OKLCH its lightness is 40%, its chroma 0.077 and its hue 35°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.030 away. White text reads best on it, at 9.52:1.
| Hue family | Reds |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.077) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.20:1 |
| White text | 9.52:1 |
Values
| HEX | #6B372A |
| RGB | rgb(107, 55, 42) |
| HSL | hsl(12, 44%, 29%) |
| OKLCH | oklch(40% 0.077 35) |
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 #6B372A | 9.52:1 | AAA | Lc -96.0 | Preferred for body text |
| Black text on #6B372A | 2.20:1 | Fails | Lc 12.2 | Not readable |
| #6B372A text on white | 9.52:1 | AAA | Lc 91.7 | Preferred for body text |
| #6B372A text on black | 2.20:1 | Fails | Lc -10.6 | 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
#FBF4F2
oklch(97.2% 0.008 36.6)
-
Step 100
100
#F5E6E2
oklch(93.6% 0.017 35.3)
-
Step 200
200
#EDD2CB
oklch(88.4% 0.032 34.9)
-
Step 300
300
#E3B4A8
oklch(80.9% 0.058 34.7)
-
Step 400
400
#D48B79
oklch(70.7% 0.094 34.5)
-
Step 500
500
#C66D57
oklch(63.1% 0.118 34.9)
-
Step 600
600
#B2533C
oklch(55.7% 0.129 34.8)
-
Step 700
700
#98432E
oklch(49% 0.119 35.1)
-
Step 800
800
#7C3827
oklch(42.8% 0.099 35.2)
-
Step 900
900 (this color)
#6B372A
oklch(40% 0.077 35)
-
Step 950
950
#3B1D15
oklch(27% 0.049 35.8)
#6B372A 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) | #443F29 | 0.076 |
| Deuteranopia (no green cones) | #514A29 | 0.071 |
| Tritanopia (no blue cones) | #752E34 | 0.035 |
| Achromatopsia (no color) | #454545 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B372A
#6B372A
oklch(40% 0.077 35)
- #00515F
#00515F
oklch(40% 0.07 214.4)
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 #6B372A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.030
- Chestnut #742802 ΔE 0.042
- Brownish Purple #76424E ΔE 0.059
- Mud Brown #60460F ΔE 0.062
- Red Brown #8B2E16 ΔE 0.065
- Rust Brown #8B3103 ΔE 0.068
- Reddy Brown #6E1005 ΔE 0.073
- Brown Red #922B05 ΔE 0.080
Use #6B372A 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.