#180811
Closest named color: Very Dark Brown (#1D0200). oklch(16.4% 0.033 346.3), rgb(24, 8, 17).
Aa
White text reads best on this color (19.41:1).
About this color
#180811 is a very dark, muted red. In OKLCH its lightness is 16%, its chroma 0.033 and its hue 346°. Its hue sits on the warm side of the wheel. The nearest named color is Very Dark Brown (#1D0200), ΔE 0.042 away. White text reads best on it, at 19.41:1.
| Hue family | Reds |
| Lightness | very dark (16%) |
| Chroma | muted (0.033) |
| Temperature | warm |
| Nearest name | Very Dark Brown (#1D0200) |
| Black text | 1.08:1 |
| White text | 19.41:1 |
Values
| HEX | #180811 |
| RGB | rgb(24, 8, 17) |
| HSL | hsl(326, 50%, 6%) |
| OKLCH | oklch(16.4% 0.033 346.3) |
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 #180811 | 19.41:1 | AAA | Lc -107.5 | Preferred for body text |
| Black text on #180811 | 1.08:1 | Fails | Lc 0.0 | Not readable |
| #180811 text on white | 19.41:1 | AAA | Lc 105.6 | Preferred for body text |
| #180811 text on black | 1.08:1 | 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
#F8F4F6
oklch(97.1% 0.005 345.3)
-
Step 100
100
#F0E7EB
oklch(93.6% 0.011 348.4)
-
Step 200
200
#E4D4DC
oklch(88.5% 0.021 345.7)
-
Step 300
300
#D4B7C6
oklch(80.9% 0.039 345.4)
-
Step 400
400
#BE91A9
oklch(70.6% 0.063 345.6)
-
Step 500
500
#AD7693
oklch(63.1% 0.079 346.7)
-
Step 600
600
#985E7E
oklch(55.6% 0.087 346.1)
-
Step 700
700
#814D6A
oklch(49% 0.08 345.9)
-
Step 800
800
#694056
oklch(42.7% 0.065 346.8)
-
Step 900
900
#563647
oklch(37.7% 0.052 346.8)
-
Step 950
950 (this color)
#180811
oklch(16.4% 0.033 346.3)
#180811 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) | #090C11 | 0.036 |
| Deuteranopia (no green cones) | #0D0E11 | 0.032 |
| Tritanopia (no blue cones) | #1A080B | 0.014 |
| Achromatopsia (no color) | #0D0D0D | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #180811
#180811
oklch(16.4% 0.033 346.3)
- #01120B
#01120B
oklch(16.3% 0.031 167)
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 #180811, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Brown #1D0200 ΔE 0.042
- Almost Black #070D0D ΔE 0.043
- Rich Navy #001219 ΔE 0.057
- Rich Black #0D1B2A ΔE 0.074
- Very Dark Purple #2A0134 ΔE 0.085
- Midnight Purple #280137 ΔE 0.088
- Midnight #03012D ΔE 0.089
- Dark Maroon #3C0008 ΔE 0.090
Use #180811 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.