#731B38
Closest named color: Bordeaux (#7B002C). oklch(37.7% 0.123 5.6), rgb(115, 27, 56).
Aa
White text reads best on this color (10.80:1).
About this color
#731B38 is a dark, moderately saturated red. In OKLCH its lightness is 38%, its chroma 0.123 and its hue 6°. Its hue sits on the warm side of the wheel. The nearest named color is Bordeaux (#7B002C), ΔE 0.029 away. White text reads best on it, at 10.80:1.
| Hue family | Reds |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.123) |
| Temperature | warm |
| Nearest name | Bordeaux (#7B002C) |
| Black text | 1.94:1 |
| White text | 10.80:1 |
Values
| HEX | #731B38 |
| RGB | rgb(115, 27, 56) |
| HSL | hsl(340, 62%, 28%) |
| OKLCH | oklch(37.7% 0.123 5.6) |
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 #731B38 | 10.80:1 | AAA | Lc -98.0 | Preferred for body text |
| Black text on #731B38 | 1.94:1 | Fails | Lc 9.9 | Not readable |
| #731B38 text on white | 10.80:1 | AAA | Lc 94.0 | Preferred for body text |
| #731B38 text on black | 1.94:1 | Fails | Lc -8.6 | 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
#FDF2F4
oklch(97% 0.012 4.7)
-
Step 100
100
#FBE3E7
oklch(93.6% 0.027 6.2)
-
Step 200
200
#F8CCD4
oklch(88.5% 0.051 5.9)
-
Step 300
300
#F4A8B8
oklch(80.9% 0.092 5.5)
-
Step 400
400
#EB7593
oklch(70.6% 0.148 5.5)
-
Step 500
500
#E14A79
oklch(63.1% 0.189 5.4)
-
Step 600
600
#CC2162
oklch(55.6% 0.205 5.4)
-
Step 700
700
#B00E51
oklch(49.1% 0.191 5.5)
-
Step 800
800
#8F1442
oklch(42.7% 0.158 5.8)
-
Step 900
900 (this color)
#731B38
oklch(37.7% 0.123 5.6)
-
Step 950
950
#441221
oklch(27.1% 0.078 5.6)
#731B38 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) | #303239 | 0.138 |
| Deuteranopia (no green cones) | #474436 | 0.126 |
| Tritanopia (no blue cones) | #7E0927 | 0.033 |
| Achromatopsia (no color) | #3D3D3D | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #731B38
#731B38
oklch(37.7% 0.123 5.6)
- #004D47
#004D47
oklch(37.8% 0.066 185.9)
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 #731B38, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bordeaux #7B002C ΔE 0.029
- Merlot #730039 ΔE 0.031
- Wine Red #7B0323 ΔE 0.035
- Wine #80013F ΔE 0.036
- Red Purple #820747 ΔE 0.044
- Red Wine #8C0034 ΔE 0.053
- Velvet #750851 ΔE 0.053
- Claret #680018 ΔE 0.058
Use #731B38 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.