#187E28
Closest named color: Tree Green (#2A7E19). oklch(51.9% 0.152 145), rgb(24, 126, 40).
Aa
White text reads best on this color (5.18:1).
About this color
#187E28 is a medium-dark, vivid green. In OKLCH its lightness is 52%, its chroma 0.152 and its hue 145°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Tree Green (#2A7E19), ΔE 0.012 away. White text reads best on it, at 5.18:1.
| Hue family | Greens |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.152) |
| Temperature | in between |
| Nearest name | Tree Green (#2A7E19) |
| Black text | 4.05:1 |
| White text | 5.18:1 |
Values
| HEX | #187E28 |
| RGB | rgb(24, 126, 40) |
| HSL | hsl(129, 68%, 29%) |
| OKLCH | oklch(51.9% 0.152 145) |
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 #187E28 | 5.18:1 | AA | Lc -80.5 | Fine for body text |
| Black text on #187E28 | 4.05:1 | AA large text | Lc 28.9 | Dividers and decoration only |
| #187E28 text on white | 5.18:1 | AA | Lc 75.2 | Fine for body text |
| #187E28 text on black | 4.05:1 | AA large text | Lc -26.6 | 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 700.
-
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
#C9E1C9
oklch(88.5% 0.041 145.2)
-
Step 300
300
#A3CEA4
oklch(80.9% 0.074 145.4)
-
Step 400
400
#6FB472
oklch(70.7% 0.118 145.2)
-
Step 500
500
#44A04B
oklch(63% 0.15 144.9)
-
Step 600
600
#1A8B2C
oklch(55.7% 0.164 145)
-
Step 700
700 (this color)
#187E28
oklch(51.9% 0.152 145)
-
Step 800
800
#0F601C
oklch(42.8% 0.126 145)
-
Step 900
900
#174E1D
oklch(37.5% 0.097 145.1)
-
Step 950
950
#102E12
oklch(27% 0.062 144.9)
#187E28 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) | #80721D | 0.113 |
| Deuteranopia (no green cones) | #756A30 | 0.113 |
| Tritanopia (no blue cones) | #007B6C | 0.093 |
| Achromatopsia (no color) | #6D6D6D | 0.153 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #187E28
#187E28
oklch(51.9% 0.152 145)
- #924498
#924498
oklch(51.9% 0.151 324.7)
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 #187E28, closest first.
No curated palette has a color within ΔE 0.04 of #187E28.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tree Green #2A7E19 ΔE 0.012
- Green #008000 ΔE 0.026
- Dark Grass Green #388004 ΔE 0.026
- Jungle Green #048243 ΔE 0.027
- Forest Green #228B22 ΔE 0.042
- Emerald Green #028F1E ΔE 0.054
- Kelley Green #009337 ΔE 0.062
- Sea Green #2E8B57 ΔE 0.064
Use #187E28 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.