#121D0D
Closest named color: Rich Black (#0D1B2A). oklch(21.5% 0.034 136.4), rgb(18, 29, 13).
Aa
White text reads best on this color (17.39:1).
About this color
#121D0D is a very dark, muted green. In OKLCH its lightness is 21%, its chroma 0.034 and its hue 136°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.059 away. White text reads best on it, at 17.39:1.
| Hue family | Greens |
| Lightness | very dark (21%) |
| Chroma | muted (0.034) |
| Temperature | in between |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.20:1 |
| White text | 17.39:1 |
Values
| HEX | #121D0D |
| RGB | rgb(18, 29, 13) |
| HSL | hsl(101, 38%, 8%) |
| OKLCH | oklch(21.5% 0.034 136.4) |
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 #121D0D | 17.39:1 | AAA | Lc -106.5 | Preferred for body text |
| Black text on #121D0D | 1.20:1 | Fails | Lc 0.0 | Not readable |
| #121D0D text on white | 17.39:1 | AAA | Lc 104.2 | Preferred for body text |
| #121D0D 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
#F4F6F3
oklch(97.1% 0.004 134.8)
-
Step 100
100
#E6ECE4
oklch(93.6% 0.012 137.8)
-
Step 200
200
#D3DDCE
oklch(88.6% 0.023 135)
-
Step 300
300
#B5C7AE
oklch(80.9% 0.04 136.9)
-
Step 400
400
#8EAA83
oklch(70.6% 0.064 136.9)
-
Step 500
500
#729563
oklch(63% 0.082 136.6)
-
Step 600
600
#5B7F4A
oklch(55.5% 0.088 136.2)
-
Step 700
700
#4A6B3B
oklch(49% 0.082 136.5)
-
Step 800
800
#3D5831
oklch(42.8% 0.069 136.6)
-
Step 900
900
#34482B
oklch(37.6% 0.054 136.4)
-
Step 950
950 (this color)
#121D0D
oklch(21.5% 0.034 136.4)
#121D0D 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) | #1E1B0C | 0.022 |
| Deuteranopia (no green cones) | #1C1A0E | 0.021 |
| Tritanopia (no blue cones) | #121C19 | 0.024 |
| Achromatopsia (no color) | #1A1A1A | 0.034 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #121D0D
#121D0D
oklch(21.5% 0.034 136.4)
- #201424
#201424
oklch(21.5% 0.035 317.5)
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 #121D0D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.059
- Jet #212529 ΔE 0.061
- Rich Navy #001219 ΔE 0.064
- Dark Forest Green #002D04 ΔE 0.066
- Dark Brown #341C02 ΔE 0.067
- Dark #1B2431 ΔE 0.069
- Very Dark Green #062E03 ΔE 0.069
- Almost Black #070D0D ΔE 0.069
Use #121D0D 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.