#181D0A
Closest named color: Dark Brown (#341C02). oklch(22% 0.034 121.4), rgb(24, 29, 10).
Aa
White text reads best on this color (17.22:1).
About this color
#181D0A is a very dark, muted brown. In OKLCH its lightness is 22%, its chroma 0.034 and its hue 121°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Brown (#341C02), ΔE 0.057 away. White text reads best on it, at 17.22:1.
| Hue family | Browns |
| Lightness | very dark (22%) |
| Chroma | muted (0.034) |
| Temperature | in between |
| Nearest name | Dark Brown (#341C02) |
| Black text | 1.21:1 |
| White text | 17.22:1 |
Values
| HEX | #181D0A |
| RGB | rgb(24, 29, 10) |
| HSL | hsl(76, 49%, 8%) |
| OKLCH | oklch(22% 0.034 121.4) |
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 #181D0A | 17.22:1 | AAA | Lc -106.4 | Preferred for body text |
| Black text on #181D0A | 1.21:1 | Fails | Lc 0.0 | Not readable |
| #181D0A text on white | 17.22:1 | AAA | Lc 104.1 | Preferred for body text |
| #181D0A text on black | 1.21:1 | 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
#F5F6F2
oklch(97.1% 0.005 117.9)
-
Step 100
100
#E8EBE3
oklch(93.6% 0.011 123.5)
-
Step 200
200
#D6DCCB
oklch(88.5% 0.024 122.8)
-
Step 300
300
#BCC5A8
oklch(80.9% 0.041 121.3)
-
Step 400
400
#9AA77A
oklch(70.6% 0.064 121.1)
-
Step 500
500
#819157
oklch(62.9% 0.083 121.4)
-
Step 600
600
#6B7B3C
oklch(55.5% 0.09 121.1)
-
Step 700
700
#59682E
oklch(49.1% 0.084 121.6)
-
Step 800
800
#495527
oklch(42.7% 0.07 121.5)
-
Step 900
900
#3D4624
oklch(37.7% 0.054 121.2)
-
Step 950
950 (this color)
#181D0A
oklch(22% 0.034 121.4)
#181D0A 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) | #1F1B08 | 0.014 |
| Deuteranopia (no green cones) | #1E1B0B | 0.014 |
| Tritanopia (no blue cones) | #191B19 | 0.030 |
| Achromatopsia (no color) | #1B1B1B | 0.034 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #181D0A
#181D0A
oklch(22% 0.034 121.4)
- #1D1728
#1D1728
oklch(22% 0.034 299.9)
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 #181D0A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Brown #341C02 ΔE 0.057
- Jet #212529 ΔE 0.059
- Rich Black #0D1B2A ΔE 0.063
- Dark Forest Green #002D04 ΔE 0.065
- Very Dark Green #062E03 ΔE 0.068
- Dark #1B2431 ΔE 0.069
- Rich Navy #001219 ΔE 0.072
- Almost Black #070D0D ΔE 0.075
Use #181D0A 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.