#1B1909
Closest named color: Dark Brown (#341C02). oklch(21.1% 0.028 102.2), rgb(27, 25, 9).
Aa
White text reads best on this color (17.65:1).
About this color
#1B1909 is a very dark close to neutral grey. In OKLCH its lightness is 21%, its chroma 0.028. It has too little chroma to lean warm or cool. The nearest named color is Dark Brown (#341C02), ΔE 0.056 away. White text reads best on it, at 17.65:1.
| Hue family | Neutrals |
| Lightness | very dark (21%) |
| Chroma | close to neutral grey (0.028) |
| Temperature | neutral |
| Nearest name | Dark Brown (#341C02) |
| Black text | 1.18:1 |
| White text | 17.65:1 |
Values
| HEX | #1B1909 |
| RGB | rgb(27, 25, 9) |
| HSL | hsl(53, 50%, 7%) |
| OKLCH | oklch(21.1% 0.028 102.2) |
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 #1B1909 | 17.65:1 | AAA | Lc -106.7 | Preferred for body text |
| Black text on #1B1909 | 1.18:1 | Fails | Lc 0.0 | Not readable |
| #1B1909 text on white | 17.65:1 | AAA | Lc 104.5 | Preferred for body text |
| #1B1909 text on black | 1.18:1 | 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
#F6F6F2
oklch(97.2% 0.005 106.5)
-
Step 100
100
#EBEAE3
oklch(93.6% 0.009 100)
-
Step 200
200
#DBDACC
oklch(88.5% 0.019 103.5)
-
Step 300
300
#C4C2A9
oklch(80.9% 0.034 103.4)
-
Step 400
400
#A7A27C
oklch(70.7% 0.053 101.4)
-
Step 500
500
#918B5A
oklch(63% 0.068 102.1)
-
Step 600
600
#7C753F
oklch(55.6% 0.075 101.9)
-
Step 700
700
#686231
oklch(49% 0.069 102.4)
-
Step 800
800
#555029
oklch(42.6% 0.058 102)
-
Step 900
900
#464326
oklch(37.8% 0.045 103.2)
-
Step 950
950 (this color)
#1B1909
oklch(21.1% 0.028 102.2)
#1B1909 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) | #1C1808 | 0.004 |
| Deuteranopia (no green cones) | #1C190A | 0.003 |
| Tritanopia (no blue cones) | #1D1715 | 0.025 |
| Achromatopsia (no color) | #191919 | 0.028 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B1909
#1B1909
oklch(21.1% 0.028 102.2)
- #161725
#161725
oklch(21.1% 0.028 280.6)
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 #1B1909, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Brown #341C02 ΔE 0.056
- Rich Black #0D1B2A ΔE 0.062
- Jet #212529 ΔE 0.063
- Almost Black #070D0D ΔE 0.066
- Rich Navy #001219 ΔE 0.067
- Dark #1B2431 ΔE 0.072
- Very Dark Brown #1D0200 ΔE 0.078
- Dark Forest Green #002D04 ΔE 0.080
Use #1B1909 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.