#0B180C
Closest named color: Rich Navy (#001219). oklch(19.3% 0.03 146.1), rgb(11, 24, 12).
Aa
White text reads best on this color (18.25:1).
About this color
#0B180C is a very dark, muted green. In OKLCH its lightness is 19%, its chroma 0.030 and its hue 146°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.045 away. White text reads best on it, at 18.25:1.
| Hue family | Greens |
| Lightness | very dark (19%) |
| Chroma | muted (0.030) |
| Temperature | in between |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.15:1 |
| White text | 18.25:1 |
Values
| HEX | #0B180C |
| RGB | rgb(11, 24, 12) |
| HSL | hsl(125, 37%, 7%) |
| OKLCH | oklch(19.3% 0.03 146.1) |
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 #0B180C | 18.25:1 | AAA | Lc -107.0 | Preferred for body text |
| Black text on #0B180C | 1.15:1 | Fails | Lc 0.0 | Not readable |
| #0B180C text on white | 18.25:1 | AAA | Lc 104.9 | Preferred for body text |
| #0B180C 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
#F3F6F3
oklch(97% 0.005 145.5)
-
Step 100
100
#E6ECE6
oklch(93.7% 0.01 145.5)
-
Step 200
200
#D1DDD1
oklch(88.5% 0.021 145.4)
-
Step 300
300
#B3C7B3
oklch(80.9% 0.035 145.2)
-
Step 400
400
#8AAB8C
oklch(70.8% 0.057 146.5)
-
Step 500
500
#6D966F
oklch(63.2% 0.073 145.9)
-
Step 600
600
#548057
oklch(55.6% 0.079 146)
-
Step 700
700
#446C47
oklch(49.1% 0.074 146.1)
-
Step 800
800
#38583A
oklch(42.7% 0.062 145.9)
-
Step 900
900
#314932
oklch(37.8% 0.049 145.5)
-
Step 950
950 (this color)
#0B180C
oklch(19.3% 0.03 146.1)
#0B180C 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) | #18160B | 0.023 |
| Deuteranopia (no green cones) | #16150D | 0.022 |
| Tritanopia (no blue cones) | #091715 | 0.019 |
| Achromatopsia (no color) | #151515 | 0.030 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0B180C
#0B180C
oklch(19.3% 0.03 146.1)
- #1B0F1C
#1B0F1C
oklch(19.1% 0.031 324.1)
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 #0B180C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.045
- Almost Black #070D0D ΔE 0.047
- Rich Black #0D1B2A ΔE 0.058
- Jet #212529 ΔE 0.077
- Dark #1B2431 ΔE 0.081
- Very Dark Brown #1D0200 ΔE 0.082
- Dark Brown #341C02 ΔE 0.084
- Dark Forest Green #002D04 ΔE 0.084
Use #0B180C 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.