#121B03
Closest named color: Dark Forest Green (#002D04). oklch(20.6% 0.046 126.4), rgb(18, 27, 3).
Aa
White text reads best on this color (17.73:1).
About this color
#121B03 is a very dark, muted green. In OKLCH its lightness is 21%, its chroma 0.046 and its hue 126°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Forest Green (#002D04), ΔE 0.067 away. White text reads best on it, at 17.73:1.
| Hue family | Greens |
| Lightness | very dark (21%) |
| Chroma | muted (0.046) |
| Temperature | in between |
| Nearest name | Dark Forest Green (#002D04) |
| Black text | 1.18:1 |
| White text | 17.73:1 |
Values
| HEX | #121B03 |
| RGB | rgb(18, 27, 3) |
| HSL | hsl(83, 80%, 6%) |
| OKLCH | oklch(20.6% 0.046 126.4) |
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 #121B03 | 17.73:1 | AAA | Lc -106.7 | Preferred for body text |
| Black text on #121B03 | 1.18:1 | Fails | Lc 0.0 | Not readable |
| #121B03 text on white | 17.73:1 | AAA | Lc 104.5 | Preferred for body text |
| #121B03 text on black | 1.18:1 | 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
#D4DDC8
oklch(88.5% 0.03 126)
-
Step 300
300
#B7C7A2
oklch(80.8% 0.053 126.6)
-
Step 400
400
#93AB6F
oklch(70.8% 0.087 126.2)
-
Step 500
500
#789548
oklch(63% 0.11 126.4)
-
Step 600
600
#617F27
oklch(55.5% 0.12 126.3)
-
Step 700
700
#506C19
oklch(49.2% 0.113 126.7)
-
Step 800
800
#425818
oklch(42.8% 0.093 126.4)
-
Step 900
900
#38481B
oklch(37.6% 0.071 126)
-
Step 950
950 (this color)
#121B03
oklch(20.6% 0.046 126.4)
#121B03 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) | #1D1801 | 0.022 |
| Deuteranopia (no green cones) | #1C1804 | 0.022 |
| Tritanopia (no blue cones) | #131916 | 0.038 |
| Achromatopsia (no color) | #181818 | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #121B03
#121B03
oklch(20.6% 0.046 126.4)
- #1D1128
#1D1128
oklch(20.6% 0.047 306.8)
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 #121B03, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Forest Green #002D04 ΔE 0.067
- Rich Navy #001219 ΔE 0.069
- Almost Black #070D0D ΔE 0.069
- Very Dark Green #062E03 ΔE 0.070
- Dark Brown #341C02 ΔE 0.070
- Rich Black #0D1B2A ΔE 0.073
- Jet #212529 ΔE 0.076
- Dark #1B2431 ΔE 0.085
Use #121B03 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.