#180B09
Closest named color: Very Dark Brown (#1D0200). oklch(16.8% 0.023 29.4), rgb(24, 11, 9).
Aa
White text reads best on this color (19.25:1).
About this color
#180B09 is a very dark close to neutral grey. In OKLCH its lightness is 17%, its chroma 0.023. It has too little chroma to lean warm or cool. The nearest named color is Very Dark Brown (#1D0200), ΔE 0.035 away. White text reads best on it, at 19.25:1.
| Hue family | Neutrals |
| Lightness | very dark (17%) |
| Chroma | close to neutral grey (0.023) |
| Temperature | neutral |
| Nearest name | Very Dark Brown (#1D0200) |
| Black text | 1.09:1 |
| White text | 19.25:1 |
Values
| HEX | #180B09 |
| RGB | rgb(24, 11, 9) |
| HSL | hsl(8, 45%, 6%) |
| OKLCH | oklch(16.8% 0.023 29.4) |
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 #180B09 | 19.25:1 | AAA | Lc -107.5 | Preferred for body text |
| Black text on #180B09 | 1.09:1 | Fails | Lc 0.0 | Not readable |
| #180B09 text on white | 19.25:1 | AAA | Lc 105.5 | Preferred for body text |
| #180B09 text on black | 1.09:1 | 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
#F8F4F4
oklch(97% 0.004 17.2)
-
Step 100
100
#EFE8E7
oklch(93.6% 0.008 27.2)
-
Step 200
200
#E3D6D3
oklch(88.6% 0.015 33.1)
-
Step 300
300
#D2BAB6
oklch(80.8% 0.028 29)
-
Step 400
400
#BB9791
oklch(70.8% 0.044 29.2)
-
Step 500
500
#A97D76
oklch(63.1% 0.056 29)
-
Step 600
600
#94665E
oklch(55.6% 0.061 30.1)
-
Step 700
700
#7E544E
oklch(49% 0.057 28.3)
-
Step 800
800
#674540
oklch(42.7% 0.048 28.5)
-
Step 900
900
#543A36
oklch(37.7% 0.038 28.8)
-
Step 950
950 (this color)
#180B09
oklch(16.8% 0.023 29.4)
#180B09 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) | #0E0D09 | 0.023 |
| Deuteranopia (no green cones) | #110F09 | 0.021 |
| Tritanopia (no blue cones) | #1B090A | 0.010 |
| Achromatopsia (no color) | #0E0E0E | 0.024 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #180B09
#180B09
oklch(16.8% 0.023 29.4)
- #031214
#031214
oklch(16.9% 0.023 205.7)
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 #180B09, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Brown #1D0200 ΔE 0.035
- Almost Black #070D0D ΔE 0.037
- Rich Navy #001219 ΔE 0.054
- Rich Black #0D1B2A ΔE 0.074
- Dark Maroon #3C0008 ΔE 0.088
- Dark Brown #341C02 ΔE 0.093
- Jet #212529 ΔE 0.099
- Deep Brown #410200 ΔE 0.100
Use #180B09 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.