#511618
Closest named color: Mahogany (#4A0100). oklch(29.9% 0.088 22.3), rgb(81, 22, 24).
Aa
White text reads best on this color (14.21:1).
About this color
#511618 is a dark, moderately saturated red. In OKLCH its lightness is 30%, its chroma 0.088 and its hue 22°. Its hue sits on the warm side of the wheel. The nearest named color is Mahogany (#4A0100), ΔE 0.046 away. White text reads best on it, at 14.21:1.
| Hue family | Reds |
| Lightness | dark (30%) |
| Chroma | moderately saturated (0.088) |
| Temperature | warm |
| Nearest name | Mahogany (#4A0100) |
| Black text | 1.47:1 |
| White text | 14.21:1 |
Values
| HEX | #511618 |
| RGB | rgb(81, 22, 24) |
| HSL | hsl(358, 57%, 20%) |
| OKLCH | oklch(29.9% 0.088 22.3) |
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 #511618 | 14.21:1 | AAA | Lc -103.4 | Preferred for body text |
| Black text on #511618 | 1.47:1 | Fails | Lc 0.0 | Not readable |
| #511618 text on white | 14.21:1 | AAA | Lc 100.3 | Preferred for body text |
| #511618 text on black | 1.47:1 | 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
#FEE3E1
oklch(93.7% 0.03 22.8)
-
Step 200
200
#FECBC8
oklch(88.6% 0.058 22.2)
-
Step 300
300
#FDA6A2
oklch(81% 0.104 22.5)
-
Step 400
400
#F7706F
oklch(70.7% 0.166 22.7)
-
Step 500
500
#EF3D49
oklch(63.1% 0.213 22.5)
-
Step 600
600
#D7002F
oklch(55.5% 0.224 22.3)
-
Step 700
700
#B60026
oklch(49% 0.198 22.3)
-
Step 800
800
#97001E
oklch(42.7% 0.172 22.2)
-
Step 900
900
#7B101C
oklch(37.7% 0.139 22.4)
-
Step 950
950 (this color)
#511618
oklch(29.9% 0.088 22.3)
#511618 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) | #262318 | 0.094 |
| Deuteranopia (no green cones) | #352F16 | 0.086 |
| Tritanopia (no blue cones) | #590817 | 0.024 |
| Achromatopsia (no color) | #2B2B2B | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #511618
#511618
oklch(29.9% 0.088 22.3)
- #003538
#003538
oklch(29.9% 0.051 200.9)
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 #511618, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mahogany #4A0100 ΔE 0.046
- Burgundy #610023 ΔE 0.047
- Chocolate Brown #411900 ΔE 0.050
- Claret #680018 ΔE 0.052
- Deep Brown #410200 ΔE 0.062
- Reddy Brown #6E1005 ΔE 0.066
- Dark Maroon #3C0008 ΔE 0.074
- Dark Brown #341C02 ΔE 0.075
Use #511618 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.