#1A9820
Closest named color: Irish Green (#019529). oklch(59.3% 0.187 143.2), rgb(26, 152, 32).
Aa
Black text reads best on this color (5.55:1).
About this color
#1A9820 is a medium-dark, vivid green. In OKLCH its lightness is 59%, its chroma 0.187 and its hue 143°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Irish Green (#019529), ΔE 0.013 away. Black text reads best on it, at 5.55:1.
| Hue family | Greens |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.187) |
| Temperature | in between |
| Nearest name | Irish Green (#019529) |
| Black text | 5.55:1 |
| White text | 3.77:1 |
Values
| HEX | #1A9820 |
| RGB | rgb(26, 152, 32) |
| HSL | hsl(123, 71%, 35%) |
| OKLCH | oklch(59.3% 0.187 143.2) |
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 #1A9820 | 3.77:1 | AA large text | Lc -70.2 | Content text, not long reading |
| Black text on #1A9820 | 5.55:1 | AA | Lc 39.4 | Non-text elements, placeholder text |
| #1A9820 text on white | 3.77:1 | AA large text | Lc 64.7 | Content text, not long reading |
| #1A9820 text on black | 5.55:1 | AA | Lc -36.9 | 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
#E1EEE0
oklch(93.6% 0.023 143.4)
-
Step 200
200
#C8E2C6
oklch(88.6% 0.047 143.2)
-
Step 300
300
#A1CF9E
oklch(80.9% 0.083 143.2)
-
Step 400
400
#6AB667
oklch(70.7% 0.135 143.2)
-
Step 500
500
#3AA23A
oklch(63% 0.172 143.2)
-
Step 600
600 (this color)
#1A9820
oklch(59.3% 0.187 143.2)
-
Step 700
700
#00760B
oklch(49.1% 0.163 143.2)
-
Step 800
800
#006108
oklch(42.7% 0.142 143.2)
-
Step 900
900
#105012
oklch(37.8% 0.112 143.3)
-
Step 950
950
#0D2F0C
oklch(27.1% 0.071 142.8)
#1A9820 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) | #9B8900 | 0.132 |
| Deuteranopia (no green cones) | #8E802E | 0.133 |
| Tritanopia (no blue cones) | #009382 | 0.121 |
| Achromatopsia (no color) | #838383 | 0.187 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1A9820
#1A9820
oklch(59.3% 0.187 143.2)
- #B14EBD
#B14EBD
oklch(59.3% 0.188 323.2)
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 #1A9820, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Irish Green #019529 ΔE 0.013
- True Green #089404 ΔE 0.017
- Grass Green #3F9B0B ΔE 0.023
- Kelley Green #009337 ΔE 0.026
- Grassy Green #419C03 ΔE 0.027
- Emerald Green #028F1E ΔE 0.029
- Forest Green #228B22 ΔE 0.039
- Kelly Green #02AB2E ΔE 0.054
Use #1A9820 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.