#731D40
Closest named color: Merlot (#730039). oklch(38.2% 0.123 0.1), rgb(115, 29, 64).
Aa
White text reads best on this color (10.61:1).
About this color
#731D40 is a dark, moderately saturated red. In OKLCH its lightness is 38%, its chroma 0.123 and its hue 0°. Its hue sits on the warm side of the wheel. The nearest named color is Merlot (#730039), ΔE 0.032 away. White text reads best on it, at 10.61:1.
| Hue family | Reds |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.123) |
| Temperature | warm |
| Nearest name | Merlot (#730039) |
| Black text | 1.97:1 |
| White text | 10.61:1 |
Values
| HEX | #731D40 |
| RGB | rgb(115, 29, 64) |
| HSL | hsl(336, 60%, 28%) |
| OKLCH | oklch(38.2% 0.123 0.1) |
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 #731D40 | 10.61:1 | AAA | Lc -97.7 | Preferred for body text |
| Black text on #731D40 | 1.97:1 | Fails | Lc 10.3 | Not readable |
| #731D40 text on white | 10.61:1 | AAA | Lc 93.6 | Preferred for body text |
| #731D40 text on black | 1.97:1 | Fails | Lc -8.9 | 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
#FDF2F5
oklch(97.1% 0.012 358.8)
-
Step 100
100
#FAE3E9
oklch(93.6% 0.026 359.9)
-
Step 200
200
#F7CCD7
oklch(88.5% 0.05 1.1)
-
Step 300
300
#F3A8BE
oklch(81% 0.092 0.2)
-
Step 400
400
#E9769D
oklch(70.8% 0.147 0)
-
Step 500
500
#DE4B85
oklch(63.1% 0.189 359.8)
-
Step 600
600
#C9236E
oklch(55.5% 0.205 0.1)
-
Step 700
700
#AE105C
oklch(49.2% 0.191 0.2)
-
Step 800
800
#8D154B
oklch(42.7% 0.158 0.3)
-
Step 900
900 (this color)
#731D40
oklch(38.2% 0.123 0.1)
-
Step 950
950
#431225
oklch(27% 0.078 359.8)
#731D40 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) | #2F3441 | 0.138 |
| Deuteranopia (no green cones) | #46453E | 0.126 |
| Tritanopia (no blue cones) | #7D112C | 0.036 |
| Achromatopsia (no color) | #3F3F3F | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #731D40
#731D40
oklch(38.2% 0.123 0.1)
- #004F44
#004F44
oklch(38.3% 0.07 179.3)
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 #731D40, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Merlot #730039 ΔE 0.032
- Wine #80013F ΔE 0.034
- Bordeaux #7B002C ΔE 0.038
- Red Purple #820747 ΔE 0.038
- Velvet #750851 ΔE 0.043
- Wine Red #7B0323 ΔE 0.046
- Red Wine #8C0034 ΔE 0.055
- Rich Purple #720058 ΔE 0.060
Use #731D40 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.