#731639
Closest named color: Merlot (#730039). oklch(37.3% 0.129 3.6), rgb(115, 22, 57).
Aa
White text reads best on this color (11.03:1).
About this color
#731639 is a dark, moderately saturated red. In OKLCH its lightness is 37%, its chroma 0.129 and its hue 4°. Its hue sits on the warm side of the wheel. The nearest named color is Merlot (#730039), ΔE 0.023 away. White text reads best on it, at 11.03:1.
| Hue family | Reds |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.129) |
| Temperature | warm |
| Nearest name | Merlot (#730039) |
| Black text | 1.90:1 |
| White text | 11.03:1 |
Values
| HEX | #731639 |
| RGB | rgb(115, 22, 57) |
| HSL | hsl(337, 68%, 27%) |
| OKLCH | oklch(37.3% 0.129 3.6) |
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 #731639 | 11.03:1 | AAA | Lc -98.3 | Preferred for body text |
| Black text on #731639 | 1.90:1 | Fails | Lc 9.6 | Not readable |
| #731639 text on white | 11.03:1 | AAA | Lc 94.3 | Preferred for body text |
| #731639 text on black | 1.90:1 | Fails | Lc -8.3 | 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 900.
-
Step 50
50
#FEF2F4
oklch(97.1% 0.013 5.8)
-
Step 100
100
#FBE3E8
oklch(93.7% 0.027 3.4)
-
Step 200
200
#F9CBD5
oklch(88.5% 0.053 3.6)
-
Step 300
300
#F6A6BA
oklch(80.8% 0.097 3.1)
-
Step 400
400
#ED7396
oklch(70.7% 0.154 3.7)
-
Step 500
500
#E3467C
oklch(63.1% 0.197 3.8)
-
Step 600
600
#CF1666
oklch(55.7% 0.215 3.6)
-
Step 700
700
#B20054
oklch(49.2% 0.198 3.9)
-
Step 800
800
#910B45
oklch(42.8% 0.165 3.8)
-
Step 900
900 (this color)
#731639
oklch(37.3% 0.129 3.6)
-
Step 950
950
#451022
oklch(27% 0.082 3.8)
#731639 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) | #2D303A | 0.145 |
| Deuteranopia (no green cones) | #464337 | 0.131 |
| Tritanopia (no blue cones) | #7E0025 | 0.037 |
| Achromatopsia (no color) | #3C3C3C | 0.130 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #731639
#731639
oklch(37.3% 0.129 3.6)
- #004C44
#004C44
oklch(37.4% 0.067 182.9)
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 #731639, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Merlot #730039 ΔE 0.023
- Bordeaux #7B002C ΔE 0.027
- Wine #80013F ΔE 0.032
- Wine Red #7B0323 ΔE 0.036
- Red Purple #820747 ΔE 0.040
- Velvet #750851 ΔE 0.047
- Red Wine #8C0034 ΔE 0.053
- Claret #680018 ΔE 0.057
Use #731639 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.