#121C03
Closest named color: Dark Forest Green (#002D04). oklch(21% 0.047 127.5), rgb(18, 28, 3).
Aa
White text reads best on this color (17.60:1).
About this color
#121C03 is a very dark, muted green. In OKLCH its lightness is 21%, its chroma 0.047 and its hue 128°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Forest Green (#002D04), ΔE 0.063 away. White text reads best on it, at 17.60:1.
| Hue family | Greens |
| Lightness | very dark (21%) |
| Chroma | muted (0.047) |
| Temperature | in between |
| Nearest name | Dark Forest Green (#002D04) |
| Black text | 1.19:1 |
| White text | 17.60:1 |
Values
| HEX | #121C03 |
| RGB | rgb(18, 28, 3) |
| HSL | hsl(84, 81%, 6%) |
| OKLCH | oklch(21% 0.047 127.5) |
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 #121C03 | 17.60:1 | AAA | Lc -106.6 | Preferred for body text |
| Black text on #121C03 | 1.19:1 | Fails | Lc 0.0 | Not readable |
| #121C03 text on white | 17.60:1 | AAA | Lc 104.4 | Preferred for body text |
| #121C03 text on black | 1.19:1 | 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
#F4F6F1
oklch(97% 0.007 124.4)
-
Step 100
100
#E7ECE1
oklch(93.6% 0.016 126.8)
-
Step 200
200
#D3DDC8
oklch(88.4% 0.03 127.9)
-
Step 300
300
#B6C8A1
oklch(80.9% 0.057 127.8)
-
Step 400
400
#91AB6E
oklch(70.6% 0.089 127.3)
-
Step 500
500
#769646
oklch(63.1% 0.114 127.4)
-
Step 600
600
#5F8024
oklch(55.6% 0.124 127.2)
-
Step 700
700
#4E6C16
oklch(49% 0.116 127.4)
-
Step 800
800
#405816
oklch(42.6% 0.096 127.4)
-
Step 900
900
#364919
oklch(37.7% 0.076 127.8)
-
Step 950
950 (this color)
#121C03
oklch(21% 0.047 127.5)
#121C03 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) | #1E1901 | 0.023 |
| Deuteranopia (no green cones) | #1D1904 | 0.023 |
| Tritanopia (no blue cones) | #131A17 | 0.039 |
| Achromatopsia (no color) | #191919 | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #121C03
#121C03
oklch(21% 0.047 127.5)
- #1E1229
#1E1229
oklch(21% 0.047 306.9)
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 #121C03, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Forest Green #002D04 ΔE 0.063
- Very Dark Green #062E03 ΔE 0.066
- Dark Brown #341C02 ΔE 0.069
- Rich Navy #001219 ΔE 0.072
- Almost Black #070D0D ΔE 0.073
- Rich Black #0D1B2A ΔE 0.074
- Jet #212529 ΔE 0.075
- Dark #1B2431 ΔE 0.084
Use #121C03 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.