#198554
Closest named color: Sea Green (#2E8B57). oklch(54.6% 0.121 157.6), rgb(25, 133, 84).
Aa
White text reads best on this color (4.64:1).
About this color
#198554 is a medium-dark, moderately saturated green. In OKLCH its lightness is 55%, its chroma 0.121 and its hue 158°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sea Green (#2E8B57), ΔE 0.023 away. White text reads best on it, at 4.64:1.
| Hue family | Greens |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.121) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 4.52:1 |
| White text | 4.64:1 |
Values
| HEX | #198554 |
| RGB | rgb(25, 133, 84) |
| HSL | hsl(153, 68%, 31%) |
| OKLCH | oklch(54.6% 0.121 157.6) |
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 #198554 | 4.64:1 | AA | Lc -77.3 | Fine for body text |
| Black text on #198554 | 4.52:1 | AA | Lc 32.3 | Non-text elements, placeholder text |
| #198554 text on white | 4.64:1 | AA | Lc 71.8 | Content text, not long reading |
| #198554 text on black | 4.52:1 | AA | Lc -29.9 | Dividers and decoration only |
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
#F2F7F3
oklch(97.1% 0.007 151.9)
-
Step 100
100
#E2EDE6
oklch(93.6% 0.015 158.2)
-
Step 200
200
#CAE0D1
oklch(88.6% 0.031 155.9)
-
Step 300
300
#A4CCB3
oklch(80.9% 0.055 157.5)
-
Step 400
400
#71B18B
oklch(70.6% 0.087 157.2)
-
Step 500
500
#469E6F
oklch(63.2% 0.111 157.5)
-
Step 600
600 (this color)
#198554
oklch(54.6% 0.121 157.6)
-
Step 700
700
#0B7347
oklch(49.1% 0.112 157.8)
-
Step 800
800
#115E3A
oklch(42.8% 0.094 157.3)
-
Step 900
900
#194D32
oklch(37.7% 0.072 157.3)
-
Step 950
950
#102D1E
oklch(27% 0.045 158.6)
#198554 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) | #847A51 | 0.111 |
| Deuteranopia (no green cones) | #777157 | 0.107 |
| Tritanopia (no blue cones) | #008478 | 0.055 |
| Achromatopsia (no color) | #747474 | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #198554
#198554
oklch(54.6% 0.121 157.6)
- #9C5289
#9C5289
oklch(54.6% 0.121 337.6)
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 #198554, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.023
- Jungle Green #048243 ΔE 0.024
- Viridian #1E9167 ΔE 0.040
- Dark Sage #598556 ΔE 0.050
- Fern Green #548D44 ΔE 0.056
- Light Forest Green #4F9153 ΔE 0.056
- Tree Green #2A7E19 ΔE 0.058
- Forest Green #228B22 ΔE 0.061
Use #198554 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.