#731E1D
Closest named color: Reddy Brown (#6E1005). oklch(37.4% 0.119 25.6), rgb(115, 30, 29).
Aa
White text reads best on this color (10.86:1).
About this color
#731E1D is a dark, moderately saturated red. In OKLCH its lightness is 37%, its chroma 0.119 and its hue 26°. Its hue sits on the warm side of the wheel. The nearest named color is Reddy Brown (#6E1005), ΔE 0.030 away. White text reads best on it, at 10.86:1.
| Hue family | Reds |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.119) |
| Temperature | warm |
| Nearest name | Reddy Brown (#6E1005) |
| Black text | 1.93:1 |
| White text | 10.86:1 |
Values
| HEX | #731E1D |
| RGB | rgb(115, 30, 29) |
| HSL | hsl(1, 60%, 28%) |
| OKLCH | oklch(37.4% 0.119 25.6) |
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 #731E1D | 10.86:1 | AAA | Lc -98.2 | Preferred for body text |
| Black text on #731E1D | 1.93:1 | Fails | Lc 9.8 | Not readable |
| #731E1D text on white | 10.86:1 | AAA | Lc 94.1 | Preferred for body text |
| #731E1D text on black | 1.93:1 | Fails | Lc -8.4 | 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
#FDF3F1
oklch(97.1% 0.011 31.1)
-
Step 100
100
#FBE4E1
oklch(93.7% 0.026 26.5)
-
Step 200
200
#F8CDC8
oklch(88.4% 0.049 25.9)
-
Step 300
300
#F5AAA3
oklch(80.8% 0.09 25.2)
-
Step 400
400
#EC7A71
oklch(70.7% 0.142 26)
-
Step 500
500
#E3514C
oklch(63.2% 0.183 25.7)
-
Step 600
600
#CE2B2F
oklch(55.6% 0.198 25.6)
-
Step 700
700
#B21A22
oklch(49.2% 0.185 25.5)
-
Step 800
800
#901B1E
oklch(42.7% 0.152 25.5)
-
Step 900
900 (this color)
#731E1D
oklch(37.4% 0.119 25.6)
-
Step 950
950
#441412
oklch(27% 0.075 25.8)
#731E1D 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) | #36311C | 0.128 |
| Deuteranopia (no green cones) | #4C441A | 0.117 |
| Tritanopia (no blue cones) | #7F021F | 0.035 |
| Achromatopsia (no color) | #3D3D3D | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #731E1D
#731E1D
oklch(37.4% 0.119 25.6)
- #004A51
#004A51
oklch(37.3% 0.064 205.6)
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 #731E1D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Reddy Brown #6E1005 ΔE 0.030
- Blood #770001 ΔE 0.033
- Wine Red #7B0323 ΔE 0.034
- Chestnut #742802 ΔE 0.035
- Maroon #800000 ΔE 0.037
- Bordeaux #7B002C ΔE 0.045
- Claret #680018 ΔE 0.050
- Dark Red #8B0000 ΔE 0.053
Use #731E1D 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.