#731310
Closest named color: Reddy Brown (#6E1005). oklch(36.2% 0.13 27.9), rgb(115, 19, 16).
Aa
White text reads best on this color (11.47:1).
About this color
#731310 is a dark, moderately saturated red. In OKLCH its lightness is 36%, its chroma 0.130 and its hue 28°. Its hue sits on the warm side of the wheel. The nearest named color is Reddy Brown (#6E1005), ΔE 0.015 away. White text reads best on it, at 11.47:1.
| Hue family | Reds |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.130) |
| Temperature | warm |
| Nearest name | Reddy Brown (#6E1005) |
| Black text | 1.82:1 |
| White text | 11.47:1 |
Values
| HEX | #731310 |
| RGB | rgb(115, 19, 16) |
| HSL | hsl(2, 76%, 26%) |
| OKLCH | oklch(36.2% 0.13 27.9) |
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 #731310 | 11.47:1 | AAA | Lc -98.9 | Preferred for body text |
| Black text on #731310 | 1.82:1 | Fails | Lc 8.9 | Not readable |
| #731310 text on white | 11.47:1 | AAA | Lc 95.0 | Preferred for body text |
| #731310 text on black | 1.82:1 | Fails | Lc -7.6 | 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
#FEF2F1
oklch(97% 0.013 23.2)
-
Step 100
100
#FCE3DF
oklch(93.5% 0.028 28.5)
-
Step 200
200
#FBCCC5
oklch(88.4% 0.054 28.1)
-
Step 300
300
#FAA89D
oklch(80.9% 0.099 27.8)
-
Step 400
400
#F27568
oklch(70.6% 0.156 27.8)
-
Step 500
500
#EA483E
oklch(63.2% 0.2 27.9)
-
Step 600
600
#D51719
oklch(55.6% 0.217 28)
-
Step 700
700
#B8000B
oklch(49.2% 0.201 28)
-
Step 800
800
#950C0E
oklch(42.6% 0.167 27.9)
-
Step 900
900 (this color)
#731310
oklch(36.2% 0.13 27.9)
-
Step 950
950
#47110D
oklch(27% 0.083 28.2)
#731310 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) | #322C0E | 0.141 |
| Deuteranopia (no green cones) | #49410B | 0.129 |
| Tritanopia (no blue cones) | #7F0014 | 0.028 |
| Achromatopsia (no color) | #393939 | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #731310
#731310
oklch(36.2% 0.13 27.9)
- #00464F
#00464F
oklch(36.1% 0.062 209.3)
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 #731310, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Reddy Brown #6E1005 ΔE 0.015
- Blood #770001 ΔE 0.017
- Maroon #800000 ΔE 0.029
- Wine Red #7B0323 ΔE 0.033
- Claret #680018 ΔE 0.040
- Chestnut #742802 ΔE 0.041
- Bordeaux #7B002C ΔE 0.046
- Dark Red #8B0000 ΔE 0.051
Use #731310 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.