#0D180B
Closest named color: Rich Navy (#001219). oklch(19.4% 0.03 140.7), rgb(13, 24, 11).
Aa
White text reads best on this color (18.21:1).
About this color
#0D180B is a very dark close to neutral grey. In OKLCH its lightness is 19%, its chroma 0.030. It has too little chroma to lean warm or cool. The nearest named color is Rich Navy (#001219), ΔE 0.047 away. White text reads best on it, at 18.21:1.
| Hue family | Neutrals |
| Lightness | very dark (19%) |
| Chroma | close to neutral grey (0.030) |
| Temperature | neutral |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.15:1 |
| White text | 18.21:1 |
Values
| HEX | #0D180B |
| RGB | rgb(13, 24, 11) |
| HSL | hsl(111, 37%, 7%) |
| OKLCH | oklch(19.4% 0.03 140.7) |
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 #0D180B | 18.21:1 | AAA | Lc -107.0 | Preferred for body text |
| Black text on #0D180B | 1.15:1 | Fails | Lc 0.0 | Not readable |
| #0D180B text on white | 18.21:1 | AAA | Lc 104.9 | Preferred for body text |
| #0D180B text on black | 1.15:1 | 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
#F4F6F3
oklch(97.1% 0.004 134.8)
-
Step 100
100
#E6ECE5
oklch(93.7% 0.011 141.3)
-
Step 200
200
#D2DDD0
oklch(88.6% 0.021 140.9)
-
Step 300
300
#B5C7B1
oklch(81% 0.036 140)
-
Step 400
400
#8EAA89
oklch(70.8% 0.056 140.9)
-
Step 500
500
#72956B
oklch(63.2% 0.073 140.4)
-
Step 600
600
#597F53
oklch(55.6% 0.079 141.1)
-
Step 700
700
#496B43
oklch(49.1% 0.073 140.8)
-
Step 800
800
#3C5737
oklch(42.6% 0.061 140.6)
-
Step 900
900
#344830
oklch(37.7% 0.047 140.4)
-
Step 950
950 (this color)
#0D180B
oklch(19.4% 0.03 140.7)
#0D180B 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) | #19160A | 0.022 |
| Deuteranopia (no green cones) | #17150C | 0.021 |
| Tritanopia (no blue cones) | #0C1715 | 0.021 |
| Achromatopsia (no color) | #151515 | 0.030 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0D180B
#0D180B
oklch(19.4% 0.03 140.7)
- #1B101D
#1B101D
oklch(19.4% 0.03 321.2)
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 #0D180B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.047
- Almost Black #070D0D ΔE 0.049
- Rich Black #0D1B2A ΔE 0.059
- Jet #212529 ΔE 0.076
- Dark #1B2431 ΔE 0.081
- Very Dark Brown #1D0200 ΔE 0.081
- Dark Brown #341C02 ΔE 0.081
- Dark Forest Green #002D04 ΔE 0.083
Use #0D180B 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.