#0B0000
Closest named color: Very Dark Brown (#1D0200). oklch(9.4% 0.039 29.2), rgb(11, 0, 0).
Aa
White text reads best on this color (20.70:1).
About this color
#0B0000 is a very dark, muted red. In OKLCH its lightness is 9%, its chroma 0.039 and its hue 29°. Its hue sits on the warm side of the wheel. The nearest named color is Very Dark Brown (#1D0200), ΔE 0.059 away. White text reads best on it, at 20.70:1.
| Hue family | Reds |
| Lightness | very dark (9%) |
| Chroma | muted (0.039) |
| Temperature | warm |
| Nearest name | Very Dark Brown (#1D0200) |
| Black text | 1.01:1 |
| White text | 20.70:1 |
Values
| HEX | #0B0000 |
| RGB | rgb(11, 0, 0) |
| HSL | hsl(0, 100%, 2%) |
| OKLCH | oklch(9.4% 0.039 29.2) |
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 #0B0000 | 20.70:1 | AAA | Lc -107.8 | Preferred for body text |
| Black text on #0B0000 | 1.01:1 | Fails | Lc 0.0 | Not readable |
| #0B0000 text on white | 20.70:1 | AAA | Lc 106.0 | Preferred for body text |
| #0B0000 text on black | 1.01:1 | 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
#F9F4F3
oklch(97.1% 0.006 31.1)
-
Step 100
100
#F3E7E5
oklch(93.7% 0.013 28.9)
-
Step 200
200
#EAD3D0
oklch(88.5% 0.026 26.6)
-
Step 300
300
#DDB6B0
oklch(80.9% 0.046 28.3)
-
Step 400
400
#CA9086
oklch(70.7% 0.073 29.9)
-
Step 500
500
#BB7368
oklch(63% 0.093 29.3)
-
Step 600
600
#A65B50
oklch(55.6% 0.1 29.4)
-
Step 700
700
#8E4A41
oklch(49% 0.094 28.8)
-
Step 800
800
#743D35
oklch(42.7% 0.079 29.4)
-
Step 900
900
#5E352E
oklch(37.8% 0.061 30.5)
-
Step 950
950 (this color)
#0B0000
oklch(9.4% 0.039 29.2)
#0B0000 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) | #020100 | 0.040 |
| Deuteranopia (no green cones) | #040300 | 0.037 |
| Tritanopia (no blue cones) | #0D0000 | 0.006 |
| Achromatopsia (no color) | #020202 | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0B0000
#0B0000
oklch(9.4% 0.039 29.2)
- #000405
#000405
oklch(9.8% 0.017 208)
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 #0B0000, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Brown #1D0200 ΔE 0.059
- Almost Black #070D0D ΔE 0.076
- Black #000000 ΔE 0.102
- Rich Navy #001219 ΔE 0.102
- Midnight #03012D ΔE 0.122
- Dark Navy Blue #00022E ΔE 0.126
- Very Dark Blue #000133 ΔE 0.136
- Dark Navy #000435 ΔE 0.139
Use #0B0000 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.