#55181F
Closest named color: Burgundy (#610023). oklch(31.1% 0.09 17.5), rgb(85, 24, 31).
Aa
White text reads best on this color (13.66:1).
About this color
#55181F is a dark, moderately saturated red. In OKLCH its lightness is 31%, its chroma 0.090 and its hue 17°. Its hue sits on the warm side of the wheel. The nearest named color is Burgundy (#610023), ΔE 0.039 away. White text reads best on it, at 13.66:1.
| Hue family | Reds |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.090) |
| Temperature | warm |
| Nearest name | Burgundy (#610023) |
| Black text | 1.53:1 |
| White text | 13.66:1 |
Values
| HEX | #55181F |
| RGB | rgb(85, 24, 31) |
| HSL | hsl(353, 56%, 21%) |
| OKLCH | oklch(31.1% 0.09 17.5) |
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 #55181F | 13.66:1 | AAA | Lc -102.8 | Preferred for body text |
| Black text on #55181F | 1.53:1 | Fails | Lc 0.0 | Not readable |
| #55181F text on white | 13.66:1 | AAA | Lc 99.6 | Preferred for body text |
| #55181F text on black | 1.53:1 | 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
#FEE2E2
oklch(93.6% 0.031 17.7)
-
Step 200
200
#FECACB
oklch(88.5% 0.059 17)
-
Step 300
300
#FEA4A7
oklch(80.9% 0.107 17.5)
-
Step 400
400
#F86D79
oklch(70.7% 0.17 17.3)
-
Step 500
500
#F03756
oklch(63% 0.218 17.5)
-
Step 600
600
#D60040
oklch(55.6% 0.222 17.4)
-
Step 700
700
#B50034
oklch(49% 0.196 17.6)
-
Step 800
800
#96002A
oklch(42.7% 0.171 17.4)
-
Step 900
900
#7C0C24
oklch(37.8% 0.142 17.6)
-
Step 950
950 (this color)
#55181F
oklch(31.1% 0.09 17.5)
#55181F 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) | #27261F | 0.099 |
| Deuteranopia (no green cones) | #37321D | 0.090 |
| Tritanopia (no blue cones) | #5E0B1B | 0.024 |
| Achromatopsia (no color) | #2E2E2E | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #55181F
#55181F
oklch(31.1% 0.09 17.5)
- #00383A
#00383A
oklch(30.9% 0.053 198.7)
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 #55181F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burgundy #610023 ΔE 0.039
- Claret #680018 ΔE 0.045
- Mahogany #4A0100 ΔE 0.058
- Reddy Brown #6E1005 ΔE 0.060
- Chocolate Brown #411900 ΔE 0.063
- Deep Brown #410200 ΔE 0.075
- Blood #770001 ΔE 0.077
- Merlot #730039 ΔE 0.081
Use #55181F 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.