#73311E
Closest named color: Chestnut (#742802). oklch(40.1% 0.098 36.8), rgb(115, 49, 30).
Aa
White text reads best on this color (9.60:1).
About this color
#73311E is a dark, moderately saturated red. In OKLCH its lightness is 40%, its chroma 0.098 and its hue 37°. Its hue sits on the warm side of the wheel. The nearest named color is Chestnut (#742802), ΔE 0.024 away. White text reads best on it, at 9.60:1.
| Hue family | Reds |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.098) |
| Temperature | warm |
| Nearest name | Chestnut (#742802) |
| Black text | 2.18:1 |
| White text | 9.60:1 |
Values
| HEX | #73311E |
| RGB | rgb(115, 49, 30) |
| HSL | hsl(13, 59%, 28%) |
| OKLCH | oklch(40.1% 0.098 36.8) |
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 #73311E | 9.60:1 | AAA | Lc -96.0 | Preferred for body text |
| Black text on #73311E | 2.18:1 | Fails | Lc 12.3 | Not readable |
| #73311E text on white | 9.60:1 | AAA | Lc 91.7 | Preferred for body text |
| #73311E text on black | 2.18:1 | Fails | Lc -10.7 | 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
#FCF3F1
oklch(97.1% 0.01 32.5)
-
Step 100
100
#F8E5E0
oklch(93.6% 0.022 35.1)
-
Step 200
200
#F3D0C6
oklch(88.4% 0.042 36.5)
-
Step 300
300
#ECB09F
oklch(80.8% 0.075 36.4)
-
Step 400
400
#DF856B
oklch(70.7% 0.117 36.9)
-
Step 500
500
#D46342
oklch(63.1% 0.151 37)
-
Step 600
600
#BF4621
oklch(55.6% 0.163 36.9)
-
Step 700
700
#A53612
oklch(49.1% 0.153 36.8)
-
Step 800
800
#862E13
oklch(42.7% 0.127 36.8)
-
Step 900
900 (this color)
#73311E
oklch(40.1% 0.098 36.8)
-
Step 950
950
#3F1A0F
oklch(27% 0.061 37.3)
#73311E 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) | #433C1C | 0.097 |
| Deuteranopia (no green cones) | #534A1C | 0.089 |
| Tritanopia (no blue cones) | #7F232D | 0.044 |
| Achromatopsia (no color) | #454545 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #73311E
#73311E
oklch(40.1% 0.098 36.8)
- #005161
#005161
oklch(40.1% 0.072 217)
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 #73311E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chestnut #742802 ΔE 0.024
- Purple Brown #673A3F ΔE 0.048
- Red Brown #8B2E16 ΔE 0.049
- Rust Brown #8B3103 ΔE 0.052
- Reddy Brown #6E1005 ΔE 0.062
- Maroon #800000 ΔE 0.063
- Brown Red #922B05 ΔE 0.063
- Brick Red #8F1402 ΔE 0.064
Use #73311E 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.