#1B1709
Closest named color: Dark Brown (#341C02). oklch(20.5% 0.026 94), rgb(27, 23, 9).
Aa
White text reads best on this color (17.90:1).
About this color
#1B1709 is a very dark close to neutral grey. In OKLCH its lightness is 21%, its chroma 0.026. It has too little chroma to lean warm or cool. The nearest named color is Dark Brown (#341C02), ΔE 0.059 away. White text reads best on it, at 17.90:1.
| Hue family | Neutrals |
| Lightness | very dark (21%) |
| Chroma | close to neutral grey (0.026) |
| Temperature | neutral |
| Nearest name | Dark Brown (#341C02) |
| Black text | 1.17:1 |
| White text | 17.90:1 |
Values
| HEX | #1B1709 |
| RGB | rgb(27, 23, 9) |
| HSL | hsl(47, 50%, 7%) |
| OKLCH | oklch(20.5% 0.026 94) |
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 #1B1709 | 17.90:1 | AAA | Lc -106.8 | Preferred for body text |
| Black text on #1B1709 | 1.17:1 | Fails | Lc 0.0 | Not readable |
| #1B1709 text on white | 17.90:1 | AAA | Lc 104.6 | Preferred for body text |
| #1B1709 text on black | 1.17:1 | 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
#F6F5F2
oklch(97% 0.004 91.4)
-
Step 100
100
#ECEAE3
oklch(93.7% 0.01 93.6)
-
Step 200
200
#DDD9CD
oklch(88.5% 0.017 91.6)
-
Step 300
300
#C7C1AB
oklch(81% 0.031 94.4)
-
Step 400
400
#AAA17E
oklch(70.8% 0.05 95.3)
-
Step 500
500
#96895E
oklch(63.1% 0.062 93.3)
-
Step 600
600
#807344
oklch(55.6% 0.067 94.4)
-
Step 700
700
#6C6035
oklch(49% 0.063 94.2)
-
Step 800
800
#584F2D
oklch(42.8% 0.052 95)
-
Step 900
900
#494128
oklch(37.7% 0.041 92.4)
-
Step 950
950 (this color)
#1B1709
oklch(20.5% 0.026 94)
#1B1709 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) | #1A1608 | 0.004 |
| Deuteranopia (no green cones) | #1B180A | 0.004 |
| Tritanopia (no blue cones) | #1D1514 | 0.024 |
| Achromatopsia (no color) | #171717 | 0.026 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B1709
#1B1709
oklch(20.5% 0.026 94)
- #131623
#131623
oklch(20.4% 0.026 273.8)
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 #1B1709, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Brown #341C02 ΔE 0.059
- Almost Black #070D0D ΔE 0.060
- Rich Black #0D1B2A ΔE 0.061
- Rich Navy #001219 ΔE 0.063
- Jet #212529 ΔE 0.067
- Very Dark Brown #1D0200 ΔE 0.071
- Dark #1B2431 ΔE 0.075
- Chocolate Brown #411900 ΔE 0.086
Use #1B1709 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.