#180511
Closest named color: Very Dark Brown (#1D0200). oklch(15.6% 0.042 343.2), rgb(24, 5, 17).
Aa
White text reads best on this color (19.65:1).
About this color
#180511 is a very dark, muted purple. In OKLCH its lightness is 16%, its chroma 0.042 and its hue 343°. Its hue sits on the warm side of the wheel. The nearest named color is Very Dark Brown (#1D0200), ΔE 0.043 away. White text reads best on it, at 19.65:1.
| Hue family | Purples |
| Lightness | very dark (16%) |
| Chroma | muted (0.042) |
| Temperature | warm |
| Nearest name | Very Dark Brown (#1D0200) |
| Black text | 1.06:1 |
| White text | 19.65:1 |
Values
| HEX | #180511 |
| RGB | rgb(24, 5, 17) |
| HSL | hsl(322, 66%, 6%) |
| OKLCH | oklch(15.6% 0.042 343.2) |
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 #180511 | 19.65:1 | AAA | Lc -107.6 | Preferred for body text |
| Black text on #180511 | 1.06:1 | Fails | Lc 0.0 | Not readable |
| #180511 text on white | 19.65:1 | AAA | Lc 105.6 | Preferred for body text |
| #180511 text on black | 1.06:1 | 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
#F9F4F6
oklch(97.2% 0.006 350.8)
-
Step 100
100
#F1E6EC
oklch(93.5% 0.014 343.2)
-
Step 200
200
#E7D2DE
oklch(88.4% 0.028 342.3)
-
Step 300
300
#D8B5C9
oklch(81% 0.048 342.9)
-
Step 400
400
#C48DAD
oklch(70.7% 0.079 343.5)
-
Step 500
500
#B47099
oklch(63.1% 0.101 343.4)
-
Step 600
600
#9F5784
oklch(55.6% 0.111 343.1)
-
Step 700
700
#884770
oklch(49.1% 0.103 343)
-
Step 800
800
#6E3B5B
oklch(42.7% 0.084 342.9)
-
Step 900
900
#5A334B
oklch(37.8% 0.066 343.1)
-
Step 950
950 (this color)
#180511
oklch(15.6% 0.042 343.2)
#180511 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) | #060911 | 0.045 |
| Deuteranopia (no green cones) | #0B0C10 | 0.039 |
| Tritanopia (no blue cones) | #1A0509 | 0.018 |
| Achromatopsia (no color) | #0B0B0B | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #180511
#180511
oklch(15.6% 0.042 343.2)
- #001108
#001108
oklch(15.7% 0.035 161.8)
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 #180511, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Brown #1D0200 ΔE 0.043
- Almost Black #070D0D ΔE 0.050
- Rich Navy #001219 ΔE 0.065
- Rich Black #0D1B2A ΔE 0.083
- Very Dark Purple #2A0134 ΔE 0.083
- Midnight Purple #280137 ΔE 0.086
- Midnight #03012D ΔE 0.086
- Dark Navy Blue #00022E ΔE 0.092
Use #180511 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.