#181D01
Closest named color: Dark Brown (#341C02). oklch(21.8% 0.049 118.6), rgb(24, 29, 1).
Aa
White text reads best on this color (17.28:1).
About this color
#181D01 is a very dark, muted brown. In OKLCH its lightness is 22%, its chroma 0.049 and its hue 119°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Brown (#341C02), ΔE 0.059 away. White text reads best on it, at 17.28:1.
| Hue family | Browns |
| Lightness | very dark (22%) |
| Chroma | muted (0.049) |
| Temperature | in between |
| Nearest name | Dark Brown (#341C02) |
| Black text | 1.21:1 |
| White text | 17.28:1 |
Values
| HEX | #181D01 |
| RGB | rgb(24, 29, 1) |
| HSL | hsl(71, 93%, 6%) |
| OKLCH | oklch(21.8% 0.049 118.6) |
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 #181D01 | 17.28:1 | AAA | Lc -106.4 | Preferred for body text |
| Black text on #181D01 | 1.21:1 | Fails | Lc 0.0 | Not readable |
| #181D01 text on white | 17.28:1 | AAA | Lc 104.1 | Preferred for body text |
| #181D01 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
#F5F6F0
oklch(97.1% 0.008 114.2)
-
Step 100
100
#E8ECDF
oklch(93.6% 0.018 120.7)
-
Step 200
200
#D7DCC5
oklch(88.4% 0.031 117)
-
Step 300
300
#BCC69C
oklch(80.8% 0.058 118.6)
-
Step 400
400
#9BA965
oklch(70.8% 0.093 118.3)
-
Step 500
500
#829337
oklch(63.1% 0.119 118.8)
-
Step 600
600
#6C7D04
oklch(55.6% 0.129 118.8)
-
Step 700
700
#5B6900
oklch(49.2% 0.115 118.5)
-
Step 800
800
#4A5601
oklch(42.8% 0.1 118.6)
-
Step 900
900
#3E470F
oklch(37.8% 0.078 118.3)
-
Step 950
950 (this color)
#181D01
oklch(21.8% 0.049 118.6)
#181D01 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) | #201B00 | 0.016 |
| Deuteranopia (no green cones) | #1F1B02 | 0.016 |
| Tritanopia (no blue cones) | #1A1B17 | 0.041 |
| Achromatopsia (no color) | #1B1B1B | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #181D01
#181D01
oklch(21.8% 0.049 118.6)
- #1D142E
#1D142E
oklch(21.7% 0.05 298)
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 #181D01, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Brown #341C02 ΔE 0.059
- Dark Forest Green #002D04 ΔE 0.060
- Very Dark Green #062E03 ΔE 0.062
- Jet #212529 ΔE 0.071
- Rich Black #0D1B2A ΔE 0.078
- Rich Navy #001219 ΔE 0.081
- Almost Black #070D0D ΔE 0.081
- Dark #1B2431 ΔE 0.083
Use #181D01 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.