#198E40
Closest named color: Kelley Green (#009337). oklch(56.8% 0.152 148.9), rgb(25, 142, 64).
Aa
Black text reads best on this color (4.98:1).
About this color
#198E40 is a medium-dark, vivid green. In OKLCH its lightness is 57%, its chroma 0.152 and its hue 149°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Kelley Green (#009337), ΔE 0.021 away. Black text reads best on it, at 4.98:1.
| Hue family | Greens |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.152) |
| Temperature | in between |
| Nearest name | Kelley Green (#009337) |
| Black text | 4.98:1 |
| White text | 4.21:1 |
Values
| HEX | #198E40 |
| RGB | rgb(25, 142, 64) |
| HSL | hsl(140, 70%, 33%) |
| OKLCH | oklch(56.8% 0.152 148.9) |
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 #198E40 | 4.21:1 | AA large text | Lc -74.1 | Content text, not long reading |
| Black text on #198E40 | 4.98:1 | AA | Lc 35.5 | Non-text elements, placeholder text |
| #198E40 text on white | 4.21:1 | AA large text | Lc 68.6 | Content text, not long reading |
| #198E40 text on black | 4.98:1 | AA | Lc -33.1 | 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
#F1F7F2
oklch(97% 0.009 150.7)
-
Step 100
100
#E1EEE3
oklch(93.6% 0.02 150.1)
-
Step 200
200
#C9E1CC
oklch(88.6% 0.038 148.9)
-
Step 300
300
#A3CDA9
oklch(80.8% 0.067 148.9)
-
Step 400
400
#6EB47A
oklch(70.8% 0.11 148.5)
-
Step 500
500
#41A058
oklch(63.1% 0.139 148.8)
-
Step 600
600 (this color)
#198E40
oklch(56.8% 0.152 148.9)
-
Step 700
700
#00752F
oklch(49.1% 0.139 148.8)
-
Step 800
800
#086027
oklch(42.8% 0.118 148.7)
-
Step 900
900
#154E25
oklch(37.6% 0.09 149.1)
-
Step 950
950
#0F2E16
oklch(27% 0.057 148.7)
#198E40 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) | #8F8139 | 0.122 |
| Deuteranopia (no green cones) | #827846 | 0.120 |
| Tritanopia (no blue cones) | #008B7C | 0.086 |
| Achromatopsia (no color) | #7B7B7B | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #198E40
#198E40
oklch(56.8% 0.152 148.9)
- #A551A2
#A551A2
oklch(56.7% 0.151 328.7)
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 #198E40, closest first.
No curated palette has a color within ΔE 0.04 of #198E40.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Kelley Green #009337 ΔE 0.021
- Forest Green #228B22 ΔE 0.026
- Emerald Green #028F1E ΔE 0.033
- Irish Green #019529 ΔE 0.035
- Sea Green #2E8B57 ΔE 0.036
- Jungle Green #048243 ΔE 0.040
- Fern Green #548D44 ΔE 0.043
- Light Forest Green #4F9153 ΔE 0.048
Use #198E40 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.