#181100
Closest named color: Almost Black (#070D0D). oklch(18.1% 0.037 91.1), rgb(24, 17, 0).
Aa
White text reads best on this color (18.76:1).
About this color
#181100 is a very dark, muted brown. In OKLCH its lightness is 18%, its chroma 0.037 and its hue 91°. Its hue sits on the warm side of the wheel. The nearest named color is Almost Black (#070D0D), ΔE 0.050 away. White text reads best on it, at 18.76:1.
| Hue family | Browns |
| Lightness | very dark (18%) |
| Chroma | muted (0.037) |
| Temperature | warm |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.11:1 |
| White text | 18.76:1 |
Values
| HEX | #181100 |
| RGB | rgb(24, 17, 0) |
| HSL | hsl(43, 100%, 5%) |
| OKLCH | oklch(18.1% 0.037 91.1) |
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 #181100 | 18.76:1 | AAA | Lc -107.3 | Preferred for body text |
| Black text on #181100 | 1.11:1 | Fails | Lc 0.0 | Not readable |
| #181100 text on white | 18.76:1 | AAA | Lc 105.2 | Preferred for body text |
| #181100 text on black | 1.11:1 | 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
#F7F5F1
oklch(97.1% 0.006 84.6)
-
Step 100
100
#EDEAE1
oklch(93.7% 0.012 91.5)
-
Step 200
200
#DFD9C7
oklch(88.5% 0.025 91.6)
-
Step 300
300
#CBC0A1
oklch(80.9% 0.044 90.8)
-
Step 400
400
#B19F6D
oklch(70.6% 0.071 90.5)
-
Step 500
500
#9E8745
oklch(63% 0.09 90.5)
-
Step 600
600
#897124
oklch(55.7% 0.098 91.2)
-
Step 700
700
#745E16
oklch(49.1% 0.091 90.9)
-
Step 800
800
#5E4D16
oklch(42.7% 0.075 91.3)
-
Step 900
900
#4D4019
oklch(37.6% 0.059 90.9)
-
Step 950
950 (this color)
#181100
oklch(18.1% 0.037 91.1)
#181100 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) | #151100 | 0.007 |
| Deuteranopia (no green cones) | #161300 | 0.008 |
| Tritanopia (no blue cones) | #1B0E0D | 0.035 |
| Achromatopsia (no color) | #121212 | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #181100
#181100
oklch(18.1% 0.037 91.1)
- #0C1122
#0C1122
oklch(18.3% 0.036 270.2)
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 #181100, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Almost Black #070D0D ΔE 0.050
- Very Dark Brown #1D0200 ΔE 0.055
- Rich Navy #001219 ΔE 0.064
- Dark Brown #341C02 ΔE 0.077
- Rich Black #0D1B2A ΔE 0.080
- Jet #212529 ΔE 0.093
- Dark Maroon #3C0008 ΔE 0.096
- Dark #1B2431 ΔE 0.100
Use #181100 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.