#191B0B
Closest named color: Dark Brown (#341C02). oklch(21.5% 0.029 114.7), rgb(25, 27, 11).
Aa
White text reads best on this color (17.45:1).
About this color
#191B0B is a very dark close to neutral grey. In OKLCH its lightness is 21%, its chroma 0.029. It has too little chroma to lean warm or cool. The nearest named color is Dark Brown (#341C02), ΔE 0.057 away. White text reads best on it, at 17.45:1.
| Hue family | Neutrals |
| Lightness | very dark (21%) |
| Chroma | close to neutral grey (0.029) |
| Temperature | neutral |
| Nearest name | Dark Brown (#341C02) |
| Black text | 1.20:1 |
| White text | 17.45:1 |
Values
| HEX | #191B0B |
| RGB | rgb(25, 27, 11) |
| HSL | hsl(68, 42%, 7%) |
| OKLCH | oklch(21.5% 0.029 114.7) |
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 #191B0B | 17.45:1 | AAA | Lc -106.6 | Preferred for body text |
| Black text on #191B0B | 1.20:1 | Fails | Lc 0.0 | Not readable |
| #191B0B text on white | 17.45:1 | AAA | Lc 104.3 | Preferred for body text |
| #191B0B text on black | 1.20:1 | 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
#F5F6F2
oklch(97.1% 0.005 117.9)
-
Step 100
100
#E9EBE3
oklch(93.6% 0.011 118)
-
Step 200
200
#D8DBCD
oklch(88.5% 0.019 116.6)
-
Step 300
300
#C0C4AB
oklch(81% 0.034 114.6)
-
Step 400
400
#9FA57E
oklch(70.7% 0.055 114.9)
-
Step 500
500
#888F5D
oklch(63.2% 0.07 114.9)
-
Step 600
600
#727943
oklch(55.7% 0.076 115)
-
Step 700
700
#606535
oklch(49% 0.069 113.9)
-
Step 800
800
#4E532C
oklch(42.8% 0.059 114.9)
-
Step 900
900
#414528
oklch(37.9% 0.046 115)
-
Step 950
950 (this color)
#191B0B
oklch(21.5% 0.029 114.7)
#191B0B 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) | #1D1A0A | 0.008 |
| Deuteranopia (no green cones) | #1D1A0C | 0.009 |
| Tritanopia (no blue cones) | #1B1917 | 0.026 |
| Achromatopsia (no color) | #1A1A1A | 0.029 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #191B0B
#191B0B
oklch(21.5% 0.029 114.7)
- #1A1725
#1A1725
oklch(21.5% 0.027 293.8)
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 #191B0B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Brown #341C02 ΔE 0.057
- Jet #212529 ΔE 0.059
- Rich Black #0D1B2A ΔE 0.060
- Rich Navy #001219 ΔE 0.067
- Dark #1B2431 ΔE 0.069
- Almost Black #070D0D ΔE 0.069
- Dark Forest Green #002D04 ΔE 0.074
- Very Dark Green #062E03 ΔE 0.076
Use #191B0B 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.