#198566
Closest named color: Sea Green (#2E8B57). oklch(55.1% 0.105 168), rgb(25, 133, 102).
Aa
Black text reads best on this color (4.58:1).
About this color
#198566 is a medium-dark, moderately saturated green. In OKLCH its lightness is 55%, its chroma 0.105 and its hue 168°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sea Green (#2E8B57), ΔE 0.034 away. Black text reads best on it, at 4.58:1.
| Hue family | Greens |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.105) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 4.58:1 |
| White text | 4.57:1 |
Values
| HEX | #198566 |
| RGB | rgb(25, 133, 102) |
| HSL | hsl(163, 68%, 31%) |
| OKLCH | oklch(55.1% 0.105 168) |
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 #198566 | 4.57:1 | AA | Lc -76.8 | Fine for body text |
| Black text on #198566 | 4.58:1 | AA | Lc 32.7 | Non-text elements, placeholder text |
| #198566 text on white | 4.57:1 | AA | Lc 71.4 | Content text, not long reading |
| #198566 text on black | 4.58:1 | AA | Lc -30.3 | 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
#F2F7F5
oklch(97.2% 0.006 170.4)
-
Step 100
100
#E2EDE8
oklch(93.6% 0.013 167.2)
-
Step 200
200
#C9DFD6
oklch(88.5% 0.026 169.2)
-
Step 300
300
#A4CBBB
oklch(80.9% 0.047 168.3)
-
Step 400
400
#70B098
oklch(70.7% 0.075 168.5)
-
Step 500
500
#459C7E
oklch(63.1% 0.096 167.9)
-
Step 600
600 (this color)
#198566
oklch(55.1% 0.105 168)
-
Step 700
700
#077256
oklch(49.1% 0.098 168)
-
Step 800
800
#0F5D46
oklch(42.7% 0.081 167.6)
-
Step 900
900
#184C3B
oklch(37.7% 0.063 168)
-
Step 950
950
#102D23
oklch(27.1% 0.04 168.2)
#198566 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) | #817B64 | 0.105 |
| Deuteranopia (no green cones) | #747268 | 0.101 |
| Tritanopia (no blue cones) | #00867C | 0.033 |
| Achromatopsia (no color) | #757575 | 0.105 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #198566
#198566
oklch(55.1% 0.105 168)
- #9E577D
#9E577D
oklch(55.2% 0.105 347.8)
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 #198566, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.034
- Viridian #1E9167 ΔE 0.038
- Teal #008080 ΔE 0.048
- Jungle Green #048243 ΔE 0.049
- Dark Sage #598556 ΔE 0.050
- Bluegreen #017A79 ΔE 0.053
- Dark Cyan #008B8B ΔE 0.054
- Light Forest Green #4F9153 ΔE 0.064
Use #198566 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.