#00A639
Closest named color: Kelly Green (#02AB2E). oklch(63.1% 0.19 146.6), rgb(0, 166, 57).
Aa
Black text reads best on this color (6.51:1).
About this color
#00A639 is a medium-light, vivid green. In OKLCH its lightness is 63%, its chroma 0.190 and its hue 147°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Kelly Green (#02AB2E), ΔE 0.019 away. Black text reads best on it, at 6.51:1.
| Hue family | Greens |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.190) |
| Temperature | in between |
| Nearest name | Kelly Green (#02AB2E) |
| Black text | 6.51:1 |
| White text | 3.22:1 |
Values
| HEX | #00A639 |
| RGB | rgb(0, 166, 57) |
| HSL | hsl(141, 100%, 33%) |
| OKLCH | oklch(63.1% 0.19 146.6) |
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 #00A639 | 3.22:1 | AA large text | Lc -64.1 | Content text, not long reading |
| Black text on #00A639 | 6.51:1 | AA | Lc 45.3 | Large or bold text, headings |
| #00A639 text on white | 3.22:1 | AA large text | Lc 58.7 | Large or bold text, headings |
| #00A639 text on black | 6.51:1 | AA | Lc -43.0 | 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 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
#C4E3C6
oklch(88.5% 0.051 146.9)
-
Step 300
300
#99D19D
oklch(80.8% 0.093 146.5)
-
Step 400
400
#5AB966
oklch(70.8% 0.149 146.4)
-
Step 500
500 (this color)
#00A639
oklch(63.1% 0.19 146.6)
-
Step 600
600
#008C2F
oklch(55.7% 0.167 146.6)
-
Step 700
700
#007526
oklch(49% 0.147 146.7)
-
Step 800
800
#00601E
oklch(42.6% 0.127 146.7)
-
Step 900
900
#005017
oklch(37.6% 0.113 146.6)
-
Step 950
950
#02300C
oklch(27% 0.078 146.6)
#00A639 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) | #A8962C | 0.145 |
| Deuteranopia (no green cones) | #998B43 | 0.145 |
| Tritanopia (no blue cones) | #00A28F | 0.114 |
| Achromatopsia (no color) | #8F8F8F | 0.191 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00A639
#00A639
oklch(63.1% 0.19 146.6)
- #C258C5
#C258C5
oklch(63.2% 0.189 326.5)
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 #00A639, closest first.
No curated palette has a color within ΔE 0.04 of #00A639.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Kelly Green #02AB2E ΔE 0.019
- Medium Green #39AD48 ΔE 0.033
- Grassy Green #419C03 ΔE 0.035
- Grass Green #3F9B0B ΔE 0.035
- Mid Green #50A747 ΔE 0.041
- Shamrock #01B44C ΔE 0.041
- Leaf Green #5CA904 ΔE 0.049
- Irish Green #019529 ΔE 0.050
Use #00A639 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.