#0A1809
Closest named color: Rich Navy (#001219). oklch(19.1% 0.035 142.6), rgb(10, 24, 9).
Aa
White text reads best on this color (18.30:1).
About this color
#0A1809 is a very dark, muted green. In OKLCH its lightness is 19%, its chroma 0.035 and its hue 143°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.048 away. White text reads best on it, at 18.30:1.
| Hue family | Greens |
| Lightness | very dark (19%) |
| Chroma | muted (0.035) |
| Temperature | in between |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.14:1 |
| White text | 18.30:1 |
Values
| HEX | #0A1809 |
| RGB | rgb(10, 24, 9) |
| HSL | hsl(116, 45%, 6%) |
| OKLCH | oklch(19.1% 0.035 142.6) |
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 #0A1809 | 18.30:1 | AAA | Lc -107.0 | Preferred for body text |
| Black text on #0A1809 | 1.14:1 | Fails | Lc 0.0 | Not readable |
| #0A1809 text on white | 18.30:1 | AAA | Lc 104.9 | Preferred for body text |
| #0A1809 text on black | 1.14:1 | 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
#E5ECE5
oklch(93.6% 0.012 145.5)
-
Step 200
200
#D1DDCF
oklch(88.5% 0.023 141.2)
-
Step 300
300
#B2C8AF
oklch(80.9% 0.042 141.8)
-
Step 400
400
#89AC85
oklch(70.8% 0.068 142.2)
-
Step 500
500
#6B9767
oklch(63.1% 0.085 142.5)
-
Step 600
600
#52814E
oklch(55.6% 0.092 142.5)
-
Step 700
700
#426D3F
oklch(49.1% 0.086 142.7)
-
Step 800
800
#375934
oklch(42.7% 0.072 142.4)
-
Step 900
900
#30492E
oklch(37.7% 0.055 142.7)
-
Step 950
950 (this color)
#0A1809
oklch(19.1% 0.035 142.6)
#0A1809 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) | #191608 | 0.026 |
| Deuteranopia (no green cones) | #17140A | 0.027 |
| Tritanopia (no blue cones) | #091714 | 0.022 |
| Achromatopsia (no color) | #151515 | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0A1809
#0A1809
oklch(19.1% 0.035 142.6)
- #1B0E1D
#1B0E1D
oklch(18.9% 0.035 322)
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 #0A1809, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.048
- Almost Black #070D0D ΔE 0.049
- Rich Black #0D1B2A ΔE 0.063
- Jet #212529 ΔE 0.081
- Dark Forest Green #002D04 ΔE 0.082
- Very Dark Brown #1D0200 ΔE 0.083
- Dark Brown #341C02 ΔE 0.085
- Dark #1B2431 ΔE 0.086
Use #0A1809 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.