#731E40
Closest named color: Merlot (#730039). oklch(38.3% 0.122 0.4), rgb(115, 30, 64).
Aa
White text reads best on this color (10.55:1).
About this color
#731E40 is a dark, moderately saturated red. In OKLCH its lightness is 38%, its chroma 0.122 and its hue 0°. Its hue sits on the warm side of the wheel. The nearest named color is Merlot (#730039), ΔE 0.033 away. White text reads best on it, at 10.55:1.
| Hue family | Reds |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.122) |
| Temperature | warm |
| Nearest name | Merlot (#730039) |
| Black text | 1.98:1 |
| White text | 10.55:1 |
Values
| HEX | #731E40 |
| RGB | rgb(115, 30, 64) |
| HSL | hsl(336, 59%, 28%) |
| OKLCH | oklch(38.3% 0.122 0.4) |
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 #731E40 | 10.55:1 | AAA | Lc -97.6 | Preferred for body text |
| Black text on #731E40 | 1.98:1 | Fails | Lc 10.4 | Not readable |
| #731E40 text on white | 10.55:1 | AAA | Lc 93.6 | Preferred for body text |
| #731E40 text on black | 1.98:1 | 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
#F2A8BE
oklch(80.9% 0.091 359.9)
-
Step 400
400
#E8769C
oklch(70.7% 0.146 0.4)
-
Step 500
500
#DE4C84
oklch(63.1% 0.187 0.4)
-
Step 600
600
#C9256E
oklch(55.6% 0.203 0.2)
-
Step 700
700
#AD135C
oklch(49.1% 0.189 0.1)
-
Step 800
800
#8D164B
oklch(42.8% 0.157 0.4)
-
Step 900
900 (this color)
#731E40
oklch(38.3% 0.122 0.4)
-
Step 950
950
#431225
oklch(27% 0.078 359.8)
#731E40 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) | #303441 | 0.136 |
| Deuteranopia (no green cones) | #47453E | 0.123 |
| Tritanopia (no blue cones) | #7D122C | 0.036 |
| Achromatopsia (no color) | #3F3F3F | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #731E40
#731E40
oklch(38.3% 0.122 0.4)
- #004F45
#004F45
oklch(38.3% 0.069 180.6)
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 #731E40, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Merlot #730039 ΔE 0.033
- Wine #80013F ΔE 0.035
- Bordeaux #7B002C ΔE 0.039
- Red Purple #820747 ΔE 0.039
- Velvet #750851 ΔE 0.045
- Wine Red #7B0323 ΔE 0.047
- Red Wine #8C0034 ΔE 0.055
- Rich Purple #720058 ΔE 0.061
Use #731E40 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.