#510910
Closest named color: Mahogany (#4A0100). oklch(28.3% 0.102 22.4), rgb(81, 9, 16).
Aa
White text reads best on this color (15.03:1).
About this color
#510910 is a dark, moderately saturated red. In OKLCH its lightness is 28%, its chroma 0.102 and its hue 22°. Its hue sits on the warm side of the wheel. The nearest named color is Mahogany (#4A0100), ΔE 0.029 away. White text reads best on it, at 15.03:1.
| Hue family | Reds |
| Lightness | dark (28%) |
| Chroma | moderately saturated (0.102) |
| Temperature | warm |
| Nearest name | Mahogany (#4A0100) |
| Black text | 1.39:1 |
| White text | 15.03:1 |
Values
| HEX | #510910 |
| RGB | rgb(81, 9, 16) |
| HSL | hsl(354, 80%, 18%) |
| OKLCH | oklch(28.3% 0.102 22.4) |
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 #510910 | 15.03:1 | AAA | Lc -103.9 | Preferred for body text |
| Black text on #510910 | 1.39:1 | Fails | Lc 0.0 | Not readable |
| #510910 text on white | 15.03:1 | AAA | Lc 100.9 | Preferred for body text |
| #510910 text on black | 1.39:1 | 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
#FFE2E0
oklch(93.6% 0.032 22.5)
-
Step 200
200
#FFCAC7
oklch(88.5% 0.061 22.1)
-
Step 300
300
#FFA4A0
oklch(80.8% 0.109 22.5)
-
Step 400
400
#FF6869
oklch(70.7% 0.185 22.7)
-
Step 500
500
#FC163C
oklch(63.1% 0.247 22.4)
-
Step 600
600
#D8002E
oklch(55.7% 0.225 22.6)
-
Step 700
700
#B60026
oklch(49% 0.198 22.3)
-
Step 800
800
#97001D
oklch(42.7% 0.172 22.6)
-
Step 900
900
#7F0017
oklch(37.7% 0.152 22.5)
-
Step 950
950 (this color)
#510910
oklch(28.3% 0.102 22.4)
#510910 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) | #201D10 | 0.112 |
| Deuteranopia (no green cones) | #322C0D | 0.102 |
| Tritanopia (no blue cones) | #5A000D | 0.021 |
| Achromatopsia (no color) | #262626 | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #510910
#510910
oklch(28.3% 0.102 22.4)
- #003034
#003034
oklch(28.2% 0.048 203.6)
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 #510910, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mahogany #4A0100 ΔE 0.029
- Burgundy #610023 ΔE 0.047
- Deep Brown #410200 ΔE 0.048
- Chocolate Brown #411900 ΔE 0.052
- Claret #680018 ΔE 0.054
- Dark Maroon #3C0008 ΔE 0.059
- Reddy Brown #6E1005 ΔE 0.072
- Dark Plum #3F012C ΔE 0.076
Use #510910 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.