#178018
Closest named color: Tree Green (#2A7E19). oklch(52.4% 0.165 142.9), rgb(23, 128, 24).
Aa
White text reads best on this color (5.07:1).
About this color
#178018 is a medium-dark, vivid green. In OKLCH its lightness is 52%, its chroma 0.165 and its hue 143°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Tree Green (#2A7E19), ΔE 0.011 away. White text reads best on it, at 5.07:1.
| Hue family | Greens |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.165) |
| Temperature | in between |
| Nearest name | Tree Green (#2A7E19) |
| Black text | 4.13:1 |
| White text | 5.07:1 |
Values
| HEX | #178018 |
| RGB | rgb(23, 128, 24) |
| HSL | hsl(121, 70%, 30%) |
| OKLCH | oklch(52.4% 0.165 142.9) |
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 #178018 | 5.07:1 | AA | Lc -79.9 | Fine for body text |
| Black text on #178018 | 4.13:1 | AA large text | Lc 29.6 | Dividers and decoration only |
| #178018 text on white | 5.07:1 | AA | Lc 74.5 | Content text, not long reading |
| #178018 text on black | 4.13:1 | AA large text | Lc -27.2 | 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
#F2F7F1
oklch(97.1% 0.01 140.5)
-
Step 100
100
#E2EEE1
oklch(93.7% 0.021 143.2)
-
Step 200
200
#CAE1C8
oklch(88.6% 0.042 143)
-
Step 300
300
#A5CDA2
oklch(80.8% 0.073 143.1)
-
Step 400
400
#73B36E
oklch(70.6% 0.118 142.6)
-
Step 500
500
#4AA046
oklch(63.2% 0.152 142.7)
-
Step 600
600 (this color)
#178018
oklch(52.4% 0.165 142.9)
-
Step 700
700
#167516
oklch(49.1% 0.153 142.8)
-
Step 800
800
#175F16
oklch(42.6% 0.127 142.8)
-
Step 900
900
#1B4E1A
oklch(37.6% 0.098 143)
-
Step 950
950
#112E10
oklch(27% 0.063 143)
#178018 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) | #837300 | 0.117 |
| Deuteranopia (no green cones) | #786B24 | 0.118 |
| Tritanopia (no blue cones) | #007C6D | 0.107 |
| Achromatopsia (no color) | #6E6E6E | 0.165 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #178018
#178018
oklch(52.4% 0.165 142.9)
- #9541A0
#9541A0
oklch(52.4% 0.165 322.9)
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 #178018, closest first.
No curated palette has a color within ΔE 0.04 of #178018.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tree Green #2A7E19 ΔE 0.011
- Green #008000 ΔE 0.013
- Dark Grass Green #388004 ΔE 0.019
- Forest Green #228B22 ΔE 0.035
- Jungle Green #048243 ΔE 0.039
- Emerald Green #028F1E ΔE 0.045
- Kelley Green #009337 ΔE 0.057
- Irish Green #019529 ΔE 0.062
Use #178018 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.