#00A640
Closest named color: Kelly Green (#02AB2E). oklch(63.2% 0.184 147.7), rgb(0, 166, 64).
Aa
Black text reads best on this color (6.52:1).
About this color
#00A640 is a medium-light, vivid green. In OKLCH its lightness is 63%, its chroma 0.184 and its hue 148°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Kelly Green (#02AB2E), ΔE 0.024 away. Black text reads best on it, at 6.52:1.
| Hue family | Greens |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.184) |
| Temperature | in between |
| Nearest name | Kelly Green (#02AB2E) |
| Black text | 6.52:1 |
| White text | 3.21:1 |
Values
| HEX | #00A640 |
| RGB | rgb(0, 166, 64) |
| HSL | hsl(143, 100%, 33%) |
| OKLCH | oklch(63.2% 0.184 147.7) |
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 #00A640 | 3.21:1 | AA large text | Lc -64.1 | Content text, not long reading |
| Black text on #00A640 | 6.52:1 | AA | Lc 45.4 | Large or bold text, headings |
| #00A640 text on white | 3.21:1 | AA large text | Lc 58.7 | Large or bold text, headings |
| #00A640 text on black | 6.52:1 | AA | Lc -43.1 | 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
#F0F8F1
oklch(97.1% 0.013 149.3)
-
Step 100
100
#DFEFE0
oklch(93.6% 0.026 147.1)
-
Step 200
200
#C4E3C7
oklch(88.6% 0.05 147.8)
-
Step 300
300
#99D1A0
oklch(80.9% 0.09 148)
-
Step 400
400
#5AB96A
oklch(70.8% 0.145 147.5)
-
Step 500
500 (this color)
#00A640
oklch(63.2% 0.184 147.7)
-
Step 600
600
#008B34
oklch(55.5% 0.162 147.6)
-
Step 700
700
#00752B
oklch(49% 0.143 147.8)
-
Step 800
800
#006022
oklch(42.6% 0.124 147.8)
-
Step 900
900
#00501B
oklch(37.6% 0.109 147.8)
-
Step 950
950
#02300E
oklch(27% 0.076 147.6)
#00A640 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) | #A89635 | 0.145 |
| Deuteranopia (no green cones) | #998B49 | 0.145 |
| Tritanopia (no blue cones) | #00A290 | 0.109 |
| Achromatopsia (no color) | #8F8F8F | 0.185 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00A640
#00A640
oklch(63.2% 0.184 147.7)
- #C259C2
#C259C2
oklch(63.2% 0.185 327.5)
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 #00A640, closest first.
No curated palette has a color within ΔE 0.04 of #00A640.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Kelly Green #02AB2E ΔE 0.024
- Medium Green #39AD48 ΔE 0.031
- Grassy Green #419C03 ΔE 0.038
- Mid Green #50A747 ΔE 0.038
- Grass Green #3F9B0B ΔE 0.038
- Shamrock #01B44C ΔE 0.040
- Irish Green #019529 ΔE 0.050
- Grass #5CAC2D ΔE 0.051
Use #00A640 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.