#511313
Closest named color: Mahogany (#4A0100). oklch(29.4% 0.092 24.9), rgb(81, 19, 19).
Aa
White text reads best on this color (14.45:1).
About this color
#511313 is a dark, moderately saturated red. In OKLCH its lightness is 29%, its chroma 0.092 and its hue 25°. Its hue sits on the warm side of the wheel. The nearest named color is Mahogany (#4A0100), ΔE 0.039 away. White text reads best on it, at 14.45:1.
| Hue family | Reds |
| Lightness | dark (29%) |
| Chroma | moderately saturated (0.092) |
| Temperature | warm |
| Nearest name | Mahogany (#4A0100) |
| Black text | 1.45:1 |
| White text | 14.45:1 |
Values
| HEX | #511313 |
| RGB | rgb(81, 19, 19) |
| HSL | hsl(0, 62%, 20%) |
| OKLCH | oklch(29.4% 0.092 24.9) |
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 #511313 | 14.45:1 | AAA | Lc -103.5 | Preferred for body text |
| Black text on #511313 | 1.45:1 | Fails | Lc 0.0 | Not readable |
| #511313 text on white | 14.45:1 | AAA | Lc 100.5 | Preferred for body text |
| #511313 text on black | 1.45:1 | Fails | Lc 0.0 | 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 950.
-
Step 50
50
#FFF2F1
oklch(97.1% 0.014 22.8)
-
Step 100
100
#FFE2DF
oklch(93.6% 0.032 24.8)
-
Step 200
200
#FFCAC5
oklch(88.4% 0.061 24.6)
-
Step 300
300
#FFA59D
oklch(80.9% 0.108 25.3)
-
Step 400
400
#FB6D67
oklch(70.8% 0.175 25)
-
Step 500
500
#F3363D
oklch(63.1% 0.223 24.9)
-
Step 600
600
#D80024
oklch(55.6% 0.225 24.8)
-
Step 700
700
#B7001D
oklch(49.1% 0.199 24.8)
-
Step 800
800
#970016
oklch(42.6% 0.173 24.8)
-
Step 900
900
#7D0A14
oklch(37.7% 0.145 24.9)
-
Step 950
950 (this color)
#511313
oklch(29.4% 0.092 24.9)
#511313 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) | #242112 | 0.100 |
| Deuteranopia (no green cones) | #342E11 | 0.090 |
| Tritanopia (no blue cones) | #5A0214 | 0.027 |
| Achromatopsia (no color) | #292929 | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #511313
#511313
oklch(29.4% 0.092 24.9)
- #003338
#003338
oklch(29.3% 0.05 205.3)
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 #511313, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mahogany #4A0100 ΔE 0.039
- Chocolate Brown #411900 ΔE 0.047
- Burgundy #610023 ΔE 0.049
- Claret #680018 ΔE 0.053
- Deep Brown #410200 ΔE 0.057
- Reddy Brown #6E1005 ΔE 0.067
- Dark Maroon #3C0008 ΔE 0.069
- Dark Brown #341C02 ΔE 0.073
Use #511313 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.