#278729
Closest named color: Forest Green (#228B22). oklch(54.8% 0.158 143.3), rgb(39, 135, 41).
Aa
Black text reads best on this color (4.58:1).
About this color
#278729 is a medium-dark, vivid green. In OKLCH its lightness is 55%, its chroma 0.158 and its hue 143°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Forest Green (#228B22), ΔE 0.015 away. Black text reads best on it, at 4.58:1.
| Hue family | Greens |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.158) |
| Temperature | in between |
| Nearest name | Forest Green (#228B22) |
| Black text | 4.58:1 |
| White text | 4.58:1 |
Values
| HEX | #278729 |
| RGB | rgb(39, 135, 41) |
| HSL | hsl(121, 55%, 34%) |
| OKLCH | oklch(54.8% 0.158 143.3) |
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 #278729 | 4.58:1 | AA | Lc -76.8 | Fine for body text |
| Black text on #278729 | 4.58:1 | AA | Lc 32.7 | Non-text elements, placeholder text |
| #278729 text on white | 4.58:1 | AA | Lc 71.4 | Content text, not long reading |
| #278729 text on black | 4.58:1 | AA | Lc -30.3 | 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
#F2F7F1
oklch(97.1% 0.01 140.5)
-
Step 100
100
#E2EEE1
oklch(93.7% 0.021 143.2)
-
Step 200
200
#CAE0C9
oklch(88.4% 0.039 144)
-
Step 300
300
#A6CDA3
oklch(80.9% 0.071 143)
-
Step 400
400
#74B371
oklch(70.7% 0.114 143.2)
-
Step 500
500
#4C9F4B
oklch(63.1% 0.145 143.4)
-
Step 600
600 (this color)
#278729
oklch(54.8% 0.158 143.3)
-
Step 700
700
#1B741E
oklch(49% 0.146 143.3)
-
Step 800
800
#1A5F1B
oklch(42.7% 0.122 143.3)
-
Step 900
900
#1D4E1D
oklch(37.8% 0.095 143.4)
-
Step 950
950
#122E12
oklch(27.1% 0.06 143.7)
#278729 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) | #8A7A1C | 0.114 |
| Deuteranopia (no green cones) | #7F7232 | 0.115 |
| Tritanopia (no blue cones) | #0A8374 | 0.100 |
| Achromatopsia (no color) | #757575 | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #278729
#278729
oklch(54.8% 0.158 143.3)
- #9B4BA5
#9B4BA5
oklch(54.8% 0.158 323.1)
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 #278729, closest first.
No curated palette has a color within ΔE 0.04 of #278729.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Forest Green #228B22 ΔE 0.015
- Dark Grass Green #388004 ΔE 0.024
- Tree Green #2A7E19 ΔE 0.027
- Emerald Green #028F1E ΔE 0.029
- Kelley Green #009337 ΔE 0.034
- Green #008000 ΔE 0.034
- Jungle Green #048243 ΔE 0.036
- Irish Green #019529 ΔE 0.042
Use #278729 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.