#731D0F
Closest named color: Reddy Brown (#6E1005). oklch(37.1% 0.122 31.9), rgb(115, 29, 15).
Aa
White text reads best on this color (10.98:1).
About this color
#731D0F is a dark, moderately saturated red. In OKLCH its lightness is 37%, its chroma 0.122 and its hue 32°. Its hue sits on the warm side of the wheel. The nearest named color is Reddy Brown (#6E1005), ΔE 0.024 away. White text reads best on it, at 10.98:1.
| Hue family | Reds |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.122) |
| Temperature | warm |
| Nearest name | Reddy Brown (#6E1005) |
| Black text | 1.91:1 |
| White text | 10.98:1 |
Values
| HEX | #731D0F |
| RGB | rgb(115, 29, 15) |
| HSL | hsl(8, 77%, 25%) |
| OKLCH | oklch(37.1% 0.122 31.9) |
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 #731D0F | 10.98:1 | AAA | Lc -98.3 | Preferred for body text |
| Black text on #731D0F | 1.91:1 | Fails | Lc 9.6 | Not readable |
| #731D0F text on white | 10.98:1 | AAA | Lc 94.3 | Preferred for body text |
| #731D0F text on black | 1.91:1 | 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
#FEF3F0
oklch(97.2% 0.013 35.7)
-
Step 100
100
#FBE4DF
oklch(93.6% 0.026 32.2)
-
Step 200
200
#F9CEC4
oklch(88.6% 0.051 33.3)
-
Step 300
300
#F6AB9C
oklch(80.9% 0.092 31.7)
-
Step 400
400
#ED7A65
oklch(70.6% 0.146 31.7)
-
Step 500
500
#E45138
oklch(63.1% 0.187 32.1)
-
Step 600
600
#D02A0D
oklch(55.6% 0.204 31.9)
-
Step 700
700
#B21C00
oklch(49.1% 0.187 31.9)
-
Step 800
800
#911A06
oklch(42.6% 0.157 31.8)
-
Step 900
900 (this color)
#731D0F
oklch(37.1% 0.122 31.9)
-
Step 950
950
#45140C
oklch(27% 0.077 31.7)
#731D0F 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) | #37300C | 0.128 |
| Deuteranopia (no green cones) | #4C430A | 0.117 |
| Tritanopia (no blue cones) | #7F001B | 0.040 |
| Achromatopsia (no color) | #3C3C3C | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #731D0F
#731D0F
oklch(37.1% 0.122 31.9)
- #004954
#004954
oklch(37.2% 0.065 211.8)
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 #731D0F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Reddy Brown #6E1005 ΔE 0.024
- Chestnut #742802 ΔE 0.026
- Blood #770001 ΔE 0.029
- Maroon #800000 ΔE 0.033
- Wine Red #7B0323 ΔE 0.043
- Dark Red #8B0000 ΔE 0.051
- Claret #680018 ΔE 0.053
- Bordeaux #7B002C ΔE 0.055
Use #731D0F 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.