#178949
Closest named color: Jungle Green (#048243). oklch(55.5% 0.137 152.4), rgb(23, 137, 73).
Aa
Black text reads best on this color (4.71:1).
About this color
#178949 is a medium-dark, moderately saturated green. In OKLCH its lightness is 56%, its chroma 0.137 and its hue 152°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Jungle Green (#048243), ΔE 0.023 away. Black text reads best on it, at 4.71:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.137) |
| Temperature | in between |
| Nearest name | Jungle Green (#048243) |
| Black text | 4.71:1 |
| White text | 4.45:1 |
Values
| HEX | #178949 |
| RGB | rgb(23, 137, 73) |
| HSL | hsl(146, 71%, 31%) |
| OKLCH | oklch(55.5% 0.137 152.4) |
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 #178949 | 4.45:1 | AA large text | Lc -75.9 | Fine for body text |
| Black text on #178949 | 4.71:1 | AA | Lc 33.6 | Non-text elements, placeholder text |
| #178949 text on white | 4.45:1 | AA large text | Lc 70.4 | Content text, not long reading |
| #178949 text on black | 4.71:1 | AA | Lc -31.2 | 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
#F2F7F3
oklch(97.1% 0.007 151.9)
-
Step 100
100
#E2EEE4
oklch(93.7% 0.018 150.5)
-
Step 200
200
#C9E0CE
oklch(88.5% 0.035 152)
-
Step 300
300
#A3CDAE
oklch(81% 0.062 152.9)
-
Step 400
400
#6FB382
oklch(70.8% 0.1 152.1)
-
Step 500
500
#439F63
oklch(63.1% 0.126 152.4)
-
Step 600
600 (this color)
#178949
oklch(55.5% 0.137 152.4)
-
Step 700
700
#02743A
oklch(49% 0.127 152.3)
-
Step 800
800
#0C5F31
oklch(42.8% 0.106 152.5)
-
Step 900
900
#174E2B
oklch(37.8% 0.083 152.1)
-
Step 950
950
#0F2E1A
oklch(27.1% 0.052 152.9)
#178949 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) | #897D44 | 0.116 |
| Deuteranopia (no green cones) | #7C744D | 0.114 |
| Tritanopia (no blue cones) | #00877A | 0.073 |
| Achromatopsia (no color) | #777777 | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #178949
#178949
oklch(55.5% 0.137 152.4)
- #A05196
#A05196
oklch(55.5% 0.137 332.2)
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 #178949, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jungle Green #048243 ΔE 0.023
- Sea Green #2E8B57 ΔE 0.024
- Forest Green #228B22 ΔE 0.040
- Kelley Green #009337 ΔE 0.042
- Viridian #1E9167 ΔE 0.042
- Fern Green #548D44 ΔE 0.046
- Tree Green #2A7E19 ΔE 0.048
- Light Forest Green #4F9153 ΔE 0.050
Use #178949 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.