#121E0F
Closest named color: Rich Black (#0D1B2A). oklch(21.9% 0.033 139.5), rgb(18, 30, 15).
Aa
White text reads best on this color (17.23:1).
About this color
#121E0F is a very dark, muted green. In OKLCH its lightness is 22%, its chroma 0.033 and its hue 139°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.057 away. White text reads best on it, at 17.23:1.
| Hue family | Greens |
| Lightness | very dark (22%) |
| Chroma | muted (0.033) |
| Temperature | in between |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.21:1 |
| White text | 17.23:1 |
Values
| HEX | #121E0F |
| RGB | rgb(18, 30, 15) |
| HSL | hsl(108, 33%, 9%) |
| OKLCH | oklch(21.9% 0.033 139.5) |
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 #121E0F | 17.23:1 | AAA | Lc -106.4 | Preferred for body text |
| Black text on #121E0F | 1.21:1 | Fails | Lc 0.0 | Not readable |
| #121E0F text on white | 17.23:1 | AAA | Lc 104.1 | Preferred for body text |
| #121E0F text on black | 1.21:1 | 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
#D2DDCF
oklch(88.5% 0.022 139)
-
Step 300
300
#B4C7AF
oklch(80.9% 0.039 139.2)
-
Step 400
400
#8DAB85
oklch(70.8% 0.063 139.1)
-
Step 500
500
#709667
oklch(63.2% 0.08 139.7)
-
Step 600
600
#58804E
oklch(55.7% 0.087 139.5)
-
Step 700
700
#486C3F
oklch(49.2% 0.081 139.5)
-
Step 800
800
#3B5834
oklch(42.7% 0.067 139.6)
-
Step 900
900
#33482D
oklch(37.6% 0.052 138.9)
-
Step 950
950 (this color)
#121E0F
oklch(21.9% 0.033 139.5)
#121E0F 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) | #1F1C0E | 0.023 |
| Deuteranopia (no green cones) | #1D1B10 | 0.022 |
| Tritanopia (no blue cones) | #111D1A | 0.022 |
| Achromatopsia (no color) | #1B1B1B | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #121E0F
#121E0F
oklch(21.9% 0.033 139.5)
- #211524
#211524
oklch(21.8% 0.034 319.5)
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 #121E0F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.057
- Jet #212529 ΔE 0.057
- Dark Forest Green #002D04 ΔE 0.064
- Dark #1B2431 ΔE 0.065
- Rich Navy #001219 ΔE 0.066
- Dark Brown #341C02 ΔE 0.066
- Very Dark Green #062E03 ΔE 0.067
- Almost Black #070D0D ΔE 0.072
Use #121E0F 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.