#18AA1F
Closest named color: Kelly Green (#02AB2E). oklch(64.2% 0.207 143.1), rgb(24, 170, 31).
Aa
Black text reads best on this color (6.80:1).
About this color
#18AA1F is a medium-light, vivid green. In OKLCH its lightness is 64%, its chroma 0.207 and its hue 143°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Kelly Green (#02AB2E), ΔE 0.008 away. Black text reads best on it, at 6.80:1.
| Hue family | Greens |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.207) |
| Temperature | in between |
| Nearest name | Kelly Green (#02AB2E) |
| Black text | 6.80:1 |
| White text | 3.08:1 |
Values
| HEX | #18AA1F |
| RGB | rgb(24, 170, 31) |
| HSL | hsl(123, 75%, 38%) |
| OKLCH | oklch(64.2% 0.207 143.1) |
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 #18AA1F | 3.08:1 | AA large text | Lc -62.5 | Content text, not long reading |
| Black text on #18AA1F | 6.80:1 | AA | Lc 47.0 | Large or bold text, headings |
| #18AA1F text on white | 3.08:1 | AA large text | Lc 57.1 | Large or bold text, headings |
| #18AA1F text on black | 6.80:1 | AA | Lc -44.7 | 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 500.
-
Step 50
50
#F0F8F0
oklch(97.1% 0.014 145.5)
-
Step 100
100
#DFEFDE
oklch(93.6% 0.028 143.7)
-
Step 200
200
#C4E3C2
oklch(88.4% 0.055 143.5)
-
Step 300
300
#9AD296
oklch(81% 0.101 143)
-
Step 400
400
#5BB958
oklch(70.6% 0.162 143.1)
-
Step 500
500 (this color)
#18AA1F
oklch(64.2% 0.207 143.1)
-
Step 600
600
#008C0D
oklch(55.5% 0.185 143.1)
-
Step 700
700
#007609
oklch(49.1% 0.164 143)
-
Step 800
800
#006106
oklch(42.7% 0.143 143.1)
-
Step 900
900
#005104
oklch(37.7% 0.126 143)
-
Step 950
950
#033004
oklch(26.9% 0.085 143.1)
#18AA1F 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) | #AE9900 | 0.148 |
| Deuteranopia (no green cones) | #9F8F31 | 0.147 |
| Tritanopia (no blue cones) | #00A591 | 0.133 |
| Achromatopsia (no color) | #939393 | 0.208 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #18AA1F
#18AA1F
oklch(64.2% 0.207 143.1)
- #C656D4
#C656D4
oklch(64.3% 0.208 323.1)
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 #18AA1F, closest first.
No curated palette has a color within ΔE 0.04 of #18AA1F.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Kelly Green #02AB2E ΔE 0.008
- Medium Green #39AD48 ΔE 0.038
- Shamrock #01B44C ΔE 0.039
- Leaf Green #5CA904 ΔE 0.039
- Grassy Green #419C03 ΔE 0.040
- Grass Green #3F9B0B ΔE 0.042
- Grass #5CAC2D ΔE 0.045
- Mid Green #50A747 ΔE 0.050
Use #18AA1F 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.