#009028
Closest named color: Emerald Green (#028F1E). oklch(56.8% 0.177 145.4), rgb(0, 144, 40).
Aa
Black text reads best on this color (5.01:1).
About this color
#009028 is a medium-dark, vivid green. In OKLCH its lightness is 57%, its chroma 0.177 and its hue 145°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Emerald Green (#028F1E), ΔE 0.007 away. Black text reads best on it, at 5.01:1.
| Hue family | Greens |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.177) |
| Temperature | in between |
| Nearest name | Emerald Green (#028F1E) |
| Black text | 5.01:1 |
| White text | 4.18:1 |
Values
| HEX | #009028 |
| RGB | rgb(0, 144, 40) |
| HSL | hsl(137, 100%, 28%) |
| OKLCH | oklch(56.8% 0.177 145.4) |
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 #009028 | 4.18:1 | AA large text | Lc -73.6 | Content text, not long reading |
| Black text on #009028 | 5.01:1 | AA | Lc 36.0 | Non-text elements, placeholder text |
| #009028 text on white | 4.18:1 | AA large text | Lc 68.1 | Content text, not long reading |
| #009028 text on black | 5.01:1 | AA | Lc -33.6 | 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
#F1F7F1
oklch(97% 0.01 145.5)
-
Step 100
100
#E1EEE1
oklch(93.6% 0.022 145.4)
-
Step 200
200
#C8E1C8
oklch(88.4% 0.043 145.2)
-
Step 300
300
#A0CFA2
oklch(80.9% 0.08 145.9)
-
Step 400
400
#6AB56E
oklch(70.6% 0.126 145.2)
-
Step 500
500
#39A246
oklch(63.1% 0.162 145.4)
-
Step 600
600 (this color)
#009028
oklch(56.8% 0.177 145.4)
-
Step 700
700
#00761F
oklch(49.2% 0.153 145.3)
-
Step 800
800
#006118
oklch(42.8% 0.133 145.4)
-
Step 900
900
#0F4F19
oklch(37.6% 0.106 145.3)
-
Step 950
950
#0C2F10
oklch(27.1% 0.068 145.4)
#009028 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) | #928218 | 0.131 |
| Deuteranopia (no green cones) | #857833 | 0.132 |
| Tritanopia (no blue cones) | #008C7B | 0.109 |
| Achromatopsia (no color) | #7C7C7C | 0.178 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #009028
#009028
oklch(56.8% 0.177 145.4)
- #A949AE
#A949AE
oklch(56.8% 0.177 325.6)
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 #009028, closest first.
No curated palette has a color within ΔE 0.04 of #009028.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Emerald Green #028F1E ΔE 0.007
- Kelley Green #009337 ΔE 0.014
- Forest Green #228B22 ΔE 0.015
- Irish Green #019529 ΔE 0.015
- True Green #089404 ΔE 0.023
- Dark Grass Green #388004 ΔE 0.046
- Grass Green #3F9B0B ΔE 0.048
- Green #008000 ΔE 0.049
Use #009028 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.