#198C1B
Closest named color: Forest Green (#228B22). oklch(55.8% 0.176 142.9), rgb(25, 140, 27).
Aa
Black text reads best on this color (4.80:1).
About this color
#198C1B is a medium-dark, vivid green. In OKLCH its lightness is 56%, its chroma 0.176 and its hue 143°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Forest Green (#228B22), ΔE 0.007 away. Black text reads best on it, at 4.80:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.176) |
| Temperature | in between |
| Nearest name | Forest Green (#228B22) |
| Black text | 4.80:1 |
| White text | 4.36:1 |
Values
| HEX | #198C1B |
| RGB | rgb(25, 140, 27) |
| HSL | hsl(121, 70%, 32%) |
| OKLCH | oklch(55.8% 0.176 142.9) |
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 #198C1B | 4.36:1 | AA large text | Lc -75.2 | Fine for body text |
| Black text on #198C1B | 4.80:1 | AA | Lc 34.4 | Non-text elements, placeholder text |
| #198C1B text on white | 4.36:1 | AA large text | Lc 69.7 | Content text, not long reading |
| #198C1B text on black | 4.80:1 | AA | Lc -32.0 | Non-text elements, placeholder text |
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 600.
-
Step 50
50
#F1F7F1
oklch(97% 0.01 145.5)
-
Step 100
100
#E1EEE0
oklch(93.6% 0.023 143.4)
-
Step 200
200
#C9E1C7
oklch(88.5% 0.043 143.1)
-
Step 300
300
#A3CEA0
oklch(80.8% 0.078 143.1)
-
Step 400
400
#6FB56B
oklch(70.8% 0.127 142.9)
-
Step 500
500
#43A140
oklch(63.1% 0.162 142.9)
-
Step 600
600 (this color)
#198C1B
oklch(55.8% 0.176 142.9)
-
Step 700
700
#027609
oklch(49.1% 0.164 142.9)
-
Step 800
800
#0D600E
oklch(42.6% 0.135 142.8)
-
Step 900
900
#164F16
oklch(37.7% 0.106 143.1)
-
Step 950
950
#0F2E0E
oklch(26.9% 0.067 142.9)
#198C1B 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) | #8F7E00 | 0.125 |
| Deuteranopia (no green cones) | #837629 | 0.125 |
| Tritanopia (no blue cones) | #008877 | 0.113 |
| Achromatopsia (no color) | #797979 | 0.177 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #198C1B
#198C1B
oklch(55.8% 0.176 142.9)
- #A348AE
#A348AE
oklch(55.9% 0.175 323.2)
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 #198C1B, closest first.
No curated palette has a color within ΔE 0.04 of #198C1B.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Forest Green #228B22 ΔE 0.007
- Emerald Green #028F1E ΔE 0.009
- Kelley Green #009337 ΔE 0.025
- Irish Green #019529 ΔE 0.026
- True Green #089404 ΔE 0.027
- Dark Grass Green #388004 ΔE 0.035
- Green #008000 ΔE 0.039
- Tree Green #2A7E19 ΔE 0.042
Use #198C1B 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.