#018F0A
Closest named color: Emerald Green (#028F1E). oklch(56.4% 0.189 142.9), rgb(1, 143, 10).
Aa
Black text reads best on this color (4.93:1).
About this color
#018F0A is a medium-dark, vivid green. In OKLCH its lightness is 56%, its chroma 0.189 and its hue 143°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Emerald Green (#028F1E), ΔE 0.009 away. Black text reads best on it, at 4.93:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.189) |
| Temperature | in between |
| Nearest name | Emerald Green (#028F1E) |
| Black text | 4.93:1 |
| White text | 4.25:1 |
Values
| HEX | #018F0A |
| RGB | rgb(1, 143, 10) |
| HSL | hsl(124, 99%, 28%) |
| OKLCH | oklch(56.4% 0.189 142.9) |
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 #018F0A | 4.25:1 | AA large text | Lc -74.1 | Content text, not long reading |
| Black text on #018F0A | 4.93:1 | AA | Lc 35.5 | Non-text elements, placeholder text |
| #018F0A text on white | 4.25:1 | AA large text | Lc 68.6 | Content text, not long reading |
| #018F0A text on black | 4.93:1 | AA | Lc -33.0 | 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
#F1F8F1
oklch(97.2% 0.012 145.5)
-
Step 100
100
#E1EEDF
oklch(93.5% 0.024 141.5)
-
Step 200
200
#C8E2C5
oklch(88.6% 0.048 142.3)
-
Step 300
300
#A1CF9D
oklch(80.9% 0.084 142.7)
-
Step 400
400
#6AB666
oklch(70.7% 0.136 142.9)
-
Step 500
500
#3AA338
oklch(63.2% 0.174 142.9)
-
Step 600
600 (this color)
#018F0A
oklch(56.4% 0.189 142.9)
-
Step 700
700
#007606
oklch(49% 0.165 142.9)
-
Step 800
800
#006104
oklch(42.7% 0.144 142.9)
-
Step 900
900
#105010
oklch(37.8% 0.114 142.9)
-
Step 950
950
#0D2F0C
oklch(27.1% 0.071 142.8)
#018F0A 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) | #928000 | 0.135 |
| Deuteranopia (no green cones) | #857720 | 0.133 |
| Tritanopia (no blue cones) | #008A79 | 0.124 |
| Achromatopsia (no color) | #7B7B7B | 0.190 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #018F0A
#018F0A
oklch(56.4% 0.189 142.9)
- #A744B4
#A744B4
oklch(56.3% 0.189 322.9)
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 #018F0A, closest first.
No curated palette has a color within ΔE 0.04 of #018F0A.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Emerald Green #028F1E ΔE 0.009
- True Green #089404 ΔE 0.016
- Forest Green #228B22 ΔE 0.021
- Irish Green #019529 ΔE 0.022
- Kelley Green #009337 ΔE 0.029
- Green #008000 ΔE 0.046
- Dark Grass Green #388004 ΔE 0.046
- Grass Green #3F9B0B ΔE 0.048
Use #018F0A 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.