#733F31
Closest named color: Purple Brown (#673A3F). oklch(42.8% 0.077 36), rgb(115, 63, 49).
Aa
White text reads best on this color (8.45:1).
About this color
#733F31 is a dark, moderately saturated red. In OKLCH its lightness is 43%, its chroma 0.077 and its hue 36°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.038 away. White text reads best on it, at 8.45:1.
| Hue family | Reds |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.077) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.48:1 |
| White text | 8.45:1 |
Values
| HEX | #733F31 |
| RGB | rgb(115, 63, 49) |
| HSL | hsl(13, 40%, 32%) |
| OKLCH | oklch(42.8% 0.077 36) |
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 #733F31 | 8.45:1 | AAA | Lc -93.4 | Preferred for body text |
| Black text on #733F31 | 2.48:1 | Fails | Lc 15.1 | Dividers and decoration only |
| #733F31 text on white | 8.45:1 | AAA | Lc 88.9 | Fine for body text |
| #733F31 text on black | 2.48:1 | Fails | Lc -13.3 | 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
#F9F4F3
oklch(97.1% 0.006 31.1)
-
Step 100
100
#F2E7E4
oklch(93.6% 0.013 35.7)
-
Step 200
200
#E9D4CE
oklch(88.5% 0.025 36.5)
-
Step 300
300
#DCB7AD
oklch(80.9% 0.045 35.6)
-
Step 400
400
#C99182
oklch(70.7% 0.072 35.6)
-
Step 500
500
#BA7562
oklch(63.1% 0.092 36.1)
-
Step 600
600
#A55D49
oklch(55.7% 0.099 36.4)
-
Step 700
700
#8D4C3B
oklch(49.1% 0.092 35.6)
-
Step 800
800 (this color)
#733F31
oklch(42.8% 0.077 36)
-
Step 900
900
#5D362B
oklch(37.8% 0.059 36.5)
-
Step 950
950
#372019
oklch(27.1% 0.038 37.7)
#733F31 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) | #4C4630 | 0.074 |
| Deuteranopia (no green cones) | #595130 | 0.068 |
| Tritanopia (no blue cones) | #7D363C | 0.036 |
| Achromatopsia (no color) | #4D4D4D | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #733F31
#733F31
oklch(42.8% 0.077 36)
- #00596A
#00596A
oklch(42.8% 0.076 216.6)
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 #733F31, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.038
- Brownish Purple #76424E ΔE 0.043
- Red Brown #8B2E16 ΔE 0.056
- Rust Brown #8B3103 ΔE 0.057
- Chestnut #742802 ΔE 0.058
- Milk Chocolate #7F4E1E ΔE 0.058
- Saddle Brown #8B4513 ΔE 0.060
- Mud Brown #60460F ΔE 0.061
Use #733F31 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.