#733937
Closest named color: Purple Brown (#673A3F). oklch(41.9% 0.082 23.2), rgb(115, 57, 55).
Aa
White text reads best on this color (8.86:1).
About this color
#733937 is a dark, moderately saturated red. In OKLCH its lightness is 42%, its chroma 0.082 and its hue 23°. 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 8.86:1.
| Hue family | Reds |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.082) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.36:1 |
| White text | 8.86:1 |
Values
| HEX | #733937 |
| RGB | rgb(115, 57, 55) |
| HSL | hsl(2, 35%, 33%) |
| OKLCH | oklch(41.9% 0.082 23.2) |
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 #733937 | 8.86:1 | AAA | Lc -94.4 | Preferred for body text |
| Black text on #733937 | 2.36:1 | Fails | Lc 14.0 | Not readable |
| #733937 text on white | 8.86:1 | AAA | Lc 90.0 | Fine for body text |
| #733937 text on black | 2.36:1 | Fails | Lc -12.3 | 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
#FAF4F3
oklch(97.2% 0.007 28.8)
-
Step 100
100
#F3E6E5
oklch(93.5% 0.014 22.8)
-
Step 200
200
#EAD3D1
oklch(88.5% 0.026 23.6)
-
Step 300
300
#DEB5B2
oklch(80.9% 0.048 23.1)
-
Step 400
400
#CC8E8A
oklch(70.7% 0.076 23.3)
-
Step 500
500
#BE716D
oklch(63.2% 0.098 23.4)
-
Step 600
600
#A95855
oklch(55.6% 0.107 23.3)
-
Step 700
700
#914845
oklch(49.2% 0.099 23.8)
-
Step 800
800 (this color)
#733937
oklch(41.9% 0.082 23.2)
-
Step 900
900
#5F3331
oklch(37.6% 0.064 23.3)
-
Step 950
950
#381E1D
oklch(27% 0.041 22.5)
#733937 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) | #464337 | 0.087 |
| Deuteranopia (no green cones) | #544F36 | 0.081 |
| Tritanopia (no blue cones) | #7D3139 | 0.026 |
| Achromatopsia (no color) | #4A4A4A | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #733937
#733937
oklch(41.9% 0.082 23.2)
- #00585E
#00585E
oklch(41.9% 0.071 202.8)
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 #733937, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.026
- Brownish Purple #76424E ΔE 0.037
- Chestnut #742802 ΔE 0.056
- Red Brown #8B2E16 ΔE 0.057
- Rust Brown #8B3103 ΔE 0.063
- Brown Red #922B05 ΔE 0.072
- Saddle Brown #8B4513 ΔE 0.076
- Milk Chocolate #7F4E1E ΔE 0.077
Use #733937 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.