#731F3F
Closest named color: Merlot (#730039). oklch(38.4% 0.12 1.4), rgb(115, 31, 63).
Aa
White text reads best on this color (10.51:1).
About this color
#731F3F is a dark, moderately saturated red. In OKLCH its lightness is 38%, its chroma 0.120 and its hue 1°. Its hue sits on the warm side of the wheel. The nearest named color is Merlot (#730039), ΔE 0.035 away. White text reads best on it, at 10.51:1.
| Hue family | Reds |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.120) |
| Temperature | warm |
| Nearest name | Merlot (#730039) |
| Black text | 1.99:1 |
| White text | 10.51:1 |
Values
| HEX | #731F3F |
| RGB | rgb(115, 31, 63) |
| HSL | hsl(337, 58%, 29%) |
| OKLCH | oklch(38.4% 0.12 1.4) |
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 #731F3F | 10.51:1 | AAA | Lc -97.6 | Preferred for body text |
| Black text on #731F3F | 1.99:1 | Fails | Lc 10.4 | Not readable |
| #731F3F text on white | 10.51:1 | AAA | Lc 93.5 | Preferred for body text |
| #731F3F text on black | 1.99:1 | Fails | Lc -9.0 | 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
#F2A8BD
oklch(80.8% 0.091 0.8)
-
Step 400
400
#E8779A
oklch(70.7% 0.144 1.8)
-
Step 500
500
#DD4D82
oklch(63% 0.184 1.3)
-
Step 600
600
#C8276B
oklch(55.5% 0.2 1.5)
-
Step 700
700
#AD165A
oklch(49.2% 0.187 1.3)
-
Step 800
800
#8C1849
oklch(42.7% 0.154 1.5)
-
Step 900
900 (this color)
#731F3F
oklch(38.4% 0.12 1.4)
-
Step 950
950
#431324
oklch(27.1% 0.076 1.7)
#731F3F 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) | #313540 | 0.134 |
| Deuteranopia (no green cones) | #47453D | 0.122 |
| Tritanopia (no blue cones) | #7D132C | 0.035 |
| Achromatopsia (no color) | #3F3F3F | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #731F3F
#731F3F
oklch(38.4% 0.12 1.4)
- #004F46
#004F46
oklch(38.4% 0.069 181.9)
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 #731F3F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Merlot #730039 ΔE 0.035
- Wine #80013F ΔE 0.036
- Bordeaux #7B002C ΔE 0.038
- Red Purple #820747 ΔE 0.040
- Wine Red #7B0323 ΔE 0.046
- Velvet #750851 ΔE 0.047
- Red Wine #8C0034 ΔE 0.055
- Purple Brown #673A3F ΔE 0.063
Use #731F3F 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.