#550C0B
Closest named color: Mahogany (#4A0100). oklch(29.4% 0.105 27.1), rgb(85, 12, 11).
Aa
White text reads best on this color (14.54:1).
About this color
#550C0B is a dark, moderately saturated red. In OKLCH its lightness is 29%, its chroma 0.105 and its hue 27°. Its hue sits on the warm side of the wheel. The nearest named color is Mahogany (#4A0100), ΔE 0.036 away. White text reads best on it, at 14.54:1.
| Hue family | Reds |
| Lightness | dark (29%) |
| Chroma | moderately saturated (0.105) |
| Temperature | warm |
| Nearest name | Mahogany (#4A0100) |
| Black text | 1.44:1 |
| White text | 14.54:1 |
Values
| HEX | #550C0B |
| RGB | rgb(85, 12, 11) |
| HSL | hsl(1, 77%, 19%) |
| OKLCH | oklch(29.4% 0.105 27.1) |
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 #550C0B | 14.54:1 | AAA | Lc -103.4 | Preferred for body text |
| Black text on #550C0B | 1.44:1 | Fails | Lc 0.0 | Not readable |
| #550C0B text on white | 14.54:1 | AAA | Lc 100.3 | Preferred for body text |
| #550C0B text on black | 1.44:1 | 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
#FFF2F0
oklch(97.1% 0.014 28)
-
Step 100
100
#FFE2DE
oklch(93.5% 0.033 27.1)
-
Step 200
200
#FFCBC4
oklch(88.6% 0.06 27.2)
-
Step 300
300
#FFA59A
oklch(80.9% 0.109 27.3)
-
Step 400
400
#FF695E
oklch(70.7% 0.185 27)
-
Step 500
500
#FF0E20
oklch(63.2% 0.254 27.1)
-
Step 600
600
#D90016
oklch(55.7% 0.227 27.2)
-
Step 700
700
#B70011
oklch(49% 0.2 27.1)
-
Step 800
800
#98000C
oklch(42.7% 0.174 27.2)
-
Step 900
900
#800008
oklch(37.7% 0.154 27.2)
-
Step 950
950 (this color)
#550C0B
oklch(29.4% 0.105 27.1)
#550C0B 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) | #231F0A | 0.114 |
| Deuteranopia (no green cones) | #352F08 | 0.104 |
| Tritanopia (no blue cones) | #5E000D | 0.022 |
| Achromatopsia (no color) | #292929 | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #550C0B
#550C0B
oklch(29.4% 0.105 27.1)
- #003339
#003339
oklch(29.4% 0.05 207.3)
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 #550C0B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mahogany #4A0100 ΔE 0.036
- Burgundy #610023 ΔE 0.046
- Claret #680018 ΔE 0.047
- Chocolate Brown #411900 ΔE 0.053
- Deep Brown #410200 ΔE 0.057
- Reddy Brown #6E1005 ΔE 0.060
- Dark Maroon #3C0008 ΔE 0.071
- Blood #770001 ΔE 0.077
Use #550C0B 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.