#181F09
Closest named color: Dark Brown (#341C02). oklch(22.6% 0.04 124.1), rgb(24, 31, 9).
Aa
White text reads best on this color (16.95:1).
About this color
#181F09 is a very dark, muted brown. In OKLCH its lightness is 23%, its chroma 0.040 and its hue 124°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Brown (#341C02), ΔE 0.056 away. White text reads best on it, at 16.95:1.
| Hue family | Browns |
| Lightness | very dark (23%) |
| Chroma | muted (0.040) |
| Temperature | in between |
| Nearest name | Dark Brown (#341C02) |
| Black text | 1.23:1 |
| White text | 16.95:1 |
Values
| HEX | #181F09 |
| RGB | rgb(24, 31, 9) |
| HSL | hsl(79, 55%, 8%) |
| OKLCH | oklch(22.6% 0.04 124.1) |
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 #181F09 | 16.95:1 | AAA | Lc -106.2 | Preferred for body text |
| Black text on #181F09 | 1.23:1 | Fails | Lc 0.0 | Not readable |
| #181F09 text on white | 16.95:1 | AAA | Lc 103.8 | Preferred for body text |
| #181F09 text on black | 1.23:1 | 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
#F4F6F2
oklch(97.1% 0.006 128.5)
-
Step 100
100
#E8EBE2
oklch(93.5% 0.012 121.7)
-
Step 200
200
#D5DCCA
oklch(88.4% 0.025 124.3)
-
Step 300
300
#BAC6A5
oklch(80.8% 0.047 123.7)
-
Step 400
400
#97A975
oklch(70.7% 0.075 123.8)
-
Step 500
500
#7D9350
oklch(63% 0.096 124)
-
Step 600
600
#667D33
oklch(55.5% 0.104 124.2)
-
Step 700
700
#556A26
oklch(49.2% 0.097 124.4)
-
Step 800
800
#465621
oklch(42.7% 0.079 123.8)
-
Step 900
900
#3B4720
oklch(37.7% 0.062 123.5)
-
Step 950
950 (this color)
#181F09
oklch(22.6% 0.04 124.1)
#181F09 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) | #211D07 | 0.017 |
| Deuteranopia (no green cones) | #201C0A | 0.018 |
| Tritanopia (no blue cones) | #191D1A | 0.033 |
| Achromatopsia (no color) | #1C1C1C | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #181F09
#181F09
oklch(22.6% 0.04 124.1)
- #20172B
#20172B
oklch(22.6% 0.04 304.1)
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 #181F09, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Brown #341C02 ΔE 0.056
- Dark Forest Green #002D04 ΔE 0.058
- Jet #212529 ΔE 0.058
- Very Dark Green #062E03 ΔE 0.060
- Rich Black #0D1B2A ΔE 0.068
- Dark #1B2431 ΔE 0.070
- Rich Navy #001219 ΔE 0.078
- Almost Black #070D0D ΔE 0.083
Use #181F09 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.