#550D18
Closest named color: Burgundy (#610023). oklch(29.7% 0.103 18.4), rgb(85, 13, 24).
Aa
White text reads best on this color (14.41:1).
About this color
#550D18 is a dark, moderately saturated red. In OKLCH its lightness is 30%, its chroma 0.103 and its hue 18°. Its hue sits on the warm side of the wheel. The nearest named color is Burgundy (#610023), ΔE 0.034 away. White text reads best on it, at 14.41:1.
| Hue family | Reds |
| Lightness | dark (30%) |
| Chroma | moderately saturated (0.103) |
| Temperature | warm |
| Nearest name | Burgundy (#610023) |
| Black text | 1.45:1 |
| White text | 14.41:1 |
Values
| HEX | #550D18 |
| RGB | rgb(85, 13, 24) |
| HSL | hsl(351, 73%, 19%) |
| OKLCH | oklch(29.7% 0.103 18.4) |
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 #550D18 | 14.41:1 | AAA | Lc -103.3 | Preferred for body text |
| Black text on #550D18 | 1.45:1 | Fails | Lc 0.0 | Not readable |
| #550D18 text on white | 14.41:1 | AAA | Lc 100.2 | Preferred for body text |
| #550D18 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
#FFF2F2
oklch(97.1% 0.014 17.4)
-
Step 100
100
#FFE2E2
oklch(93.6% 0.032 17.7)
-
Step 200
200
#FFCACA
oklch(88.5% 0.06 18.4)
-
Step 300
300
#FFA4A6
oklch(81% 0.108 18.3)
-
Step 400
400
#FF6673
oklch(70.7% 0.186 18.2)
-
Step 500
500
#FC0F4B
oklch(63.1% 0.249 18.4)
-
Step 600
600
#D6003D
oklch(55.5% 0.222 18.3)
-
Step 700
700
#B60032
oklch(49.2% 0.197 18.4)
-
Step 800
800
#960028
oklch(42.7% 0.171 18.3)
-
Step 900
900
#7F0020
oklch(37.8% 0.151 18.5)
-
Step 950
950 (this color)
#550D18
oklch(29.7% 0.103 18.4)
#550D18 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) | #222018 | 0.114 |
| Deuteranopia (no green cones) | #342F16 | 0.104 |
| Tritanopia (no blue cones) | #5E0012 | 0.022 |
| Achromatopsia (no color) | #2A2A2A | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #550D18
#550D18
oklch(29.7% 0.103 18.4)
- #003436
#003436
oklch(29.5% 0.05 198.9)
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 #550D18, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burgundy #610023 ΔE 0.034
- Claret #680018 ΔE 0.042
- Mahogany #4A0100 ΔE 0.044
- Chocolate Brown #411900 ΔE 0.061
- Deep Brown #410200 ΔE 0.063
- Reddy Brown #6E1005 ΔE 0.063
- Dark Maroon #3C0008 ΔE 0.072
- Dark Plum #3F012C ΔE 0.078
Use #550D18 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.