#128838
Closest named color: Forest Green (#228B22). oklch(54.9% 0.153 148), rgb(18, 136, 56).
Aa
Black text reads best on this color (4.60:1).
About this color
#128838 is a medium-dark, vivid green. In OKLCH its lightness is 55%, its chroma 0.153 and its hue 148°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Forest Green (#228B22), ΔE 0.023 away. Black text reads best on it, at 4.60:1.
| Hue family | Greens |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.153) |
| Temperature | in between |
| Nearest name | Forest Green (#228B22) |
| Black text | 4.60:1 |
| White text | 4.56:1 |
Values
| HEX | #128838 |
| RGB | rgb(18, 136, 56) |
| HSL | hsl(139, 77%, 30%) |
| OKLCH | oklch(54.9% 0.153 148) |
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 #128838 | 4.56:1 | AA | Lc -76.6 | Fine for body text |
| Black text on #128838 | 4.60:1 | AA | Lc 33.0 | Non-text elements, placeholder text |
| #128838 text on white | 4.56:1 | AA | Lc 71.1 | Content text, not long reading |
| #128838 text on black | 4.60:1 | AA | Lc -30.5 | 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
#F1F7F2
oklch(97% 0.009 150.7)
-
Step 100
100
#E1EEE3
oklch(93.6% 0.02 150.1)
-
Step 200
200
#C9E1CB
oklch(88.6% 0.039 147.6)
-
Step 300
300
#A3CDA8
oklch(80.8% 0.068 148.2)
-
Step 400
400
#6FB379
oklch(70.6% 0.109 147.9)
-
Step 500
500
#42A056
oklch(63.1% 0.141 148.1)
-
Step 600
600 (this color)
#128838
oklch(54.9% 0.153 148)
-
Step 700
700
#00752C
oklch(49% 0.142 148)
-
Step 800
800
#0C5F26
oklch(42.6% 0.117 148.1)
-
Step 900
900
#164E23
oklch(37.6% 0.092 147.9)
-
Step 950
950
#0F2E15
oklch(27% 0.059 147.8)
#128838 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) | #897B30 | 0.120 |
| Deuteranopia (no green cones) | #7D723E | 0.120 |
| Tritanopia (no blue cones) | #008576 | 0.088 |
| Achromatopsia (no color) | #767676 | 0.154 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #128838
#128838
oklch(54.9% 0.153 148)
- #9F4B9D
#9F4B9D
oklch(54.9% 0.153 328.3)
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 #128838, closest first.
No curated palette has a color within ΔE 0.04 of #128838.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Forest Green #228B22 ΔE 0.023
- Jungle Green #048243 ΔE 0.026
- Tree Green #2A7E19 ΔE 0.033
- Kelley Green #009337 ΔE 0.034
- Emerald Green #028F1E ΔE 0.035
- Dark Grass Green #388004 ΔE 0.035
- Green #008000 ΔE 0.041
- Sea Green #2E8B57 ΔE 0.042
Use #128838 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.