#00A021
Closest named color: Grass Green (#3F9B0B). oklch(61.3% 0.198 144.1), rgb(0, 160, 33).
Aa
Black text reads best on this color (6.05:1).
About this color
#00A021 is a medium-dark, vivid green. In OKLCH its lightness is 61%, its chroma 0.198 and its hue 144°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grass Green (#3F9B0B), ΔE 0.023 away. Black text reads best on it, at 6.05:1.
| Hue family | Greens |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.198) |
| Temperature | in between |
| Nearest name | Grass Green (#3F9B0B) |
| Black text | 6.05:1 |
| White text | 3.47:1 |
Values
| HEX | #00A021 |
| RGB | rgb(0, 160, 33) |
| HSL | hsl(132, 100%, 31%) |
| OKLCH | oklch(61.3% 0.198 144.1) |
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 #00A021 | 3.47:1 | AA large text | Lc -66.9 | Content text, not long reading |
| Black text on #00A021 | 6.05:1 | AA | Lc 42.6 | Non-text elements, placeholder text |
| #00A021 text on white | 3.47:1 | AA large text | Lc 61.5 | Content text, not long reading |
| #00A021 text on black | 6.05:1 | AA | Lc -40.2 | 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
#C4E3C3
oklch(88.5% 0.054 144.3)
-
Step 300
300
#9AD199
oklch(80.8% 0.096 144.2)
-
Step 400
400
#5CB95E
oklch(70.7% 0.156 144.1)
-
Step 500
500 (this color)
#00A021
oklch(61.3% 0.198 144.1)
-
Step 600
600
#008C1C
oklch(55.6% 0.179 144.1)
-
Step 700
700
#007616
oklch(49.1% 0.159 144.1)
-
Step 800
800
#006110
oklch(42.8% 0.138 144.1)
-
Step 900
900
#00510C
oklch(37.8% 0.122 144.2)
-
Step 950
950
#043007
oklch(27% 0.082 143.9)
#00A021 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) | #A39000 | 0.143 |
| Deuteranopia (no green cones) | #958630 | 0.144 |
| Tritanopia (no blue cones) | #009B88 | 0.126 |
| Achromatopsia (no color) | #8A8A8A | 0.199 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00A021
#00A021
oklch(61.3% 0.198 144.1)
- #BB50C5
#BB50C5
oklch(61.3% 0.197 324.2)
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 #00A021, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grass Green #3F9B0B ΔE 0.023
- Grassy Green #419C03 ΔE 0.024
- Kelly Green #02AB2E ΔE 0.032
- Irish Green #019529 ΔE 0.035
- True Green #089404 ΔE 0.035
- Kelley Green #009337 ΔE 0.046
- Emerald Green #028F1E ΔE 0.051
- Medium Green #39AD48 ΔE 0.054
Use #00A021 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.