#178963
Closest named color: Sea Green (#2E8B57). oklch(56.1% 0.113 164.3), rgb(23, 137, 99).
Aa
Black text reads best on this color (4.79:1).
About this color
#178963 is a medium-dark, moderately saturated green. In OKLCH its lightness is 56%, its chroma 0.113 and its hue 164°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sea Green (#2E8B57), ΔE 0.021 away. Black text reads best on it, at 4.79:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.113) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 4.79:1 |
| White text | 4.37:1 |
Values
| HEX | #178963 |
| RGB | rgb(23, 137, 99) |
| HSL | hsl(160, 71%, 31%) |
| OKLCH | oklch(56.1% 0.113 164.3) |
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 #178963 | 4.37:1 | AA large text | Lc -75.4 | Fine for body text |
| Black text on #178963 | 4.79:1 | AA | Lc 34.2 | Non-text elements, placeholder text |
| #178963 text on white | 4.37:1 | AA large text | Lc 69.9 | Content text, not long reading |
| #178963 text on black | 4.79:1 | AA | Lc -31.8 | 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
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E1EDE7
oklch(93.5% 0.015 164.7)
-
Step 200
200
#C9DFD4
oklch(88.4% 0.028 164.3)
-
Step 300
300
#A3CBB8
oklch(80.8% 0.05 164.7)
-
Step 400
400
#6EB193
oklch(70.7% 0.082 164.1)
-
Step 500
500
#429D79
oklch(63.1% 0.103 164.4)
-
Step 600
600 (this color)
#178963
oklch(56.1% 0.113 164.3)
-
Step 700
700
#007351
oklch(49.2% 0.104 164.3)
-
Step 800
800
#0A5E42
oklch(42.8% 0.088 163.9)
-
Step 900
900
#164D38
oklch(37.8% 0.068 164.1)
-
Step 950
950
#0F2D21
oklch(27% 0.043 164.6)
#178963 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) | #867E61 | 0.111 |
| Deuteranopia (no green cones) | #797566 | 0.107 |
| Tritanopia (no blue cones) | #00897F | 0.042 |
| Achromatopsia (no color) | #797979 | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #178963
#178963
oklch(56.1% 0.113 164.3)
- #A25885
#A25885
oklch(56.1% 0.112 344)
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 #178963, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.021
- Viridian #1E9167 ΔE 0.025
- Jungle Green #048243 ΔE 0.045
- Dark Sage #598556 ΔE 0.047
- Light Forest Green #4F9153 ΔE 0.052
- Ocean Green #3D9973 ΔE 0.057
- Fern Green #548D44 ΔE 0.058
- Dark Cyan #008B8B ΔE 0.059
Use #178963 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.