#63AB2B
Closest named color: Grass (#5CAC2D). oklch(66.9% 0.174 134.7), rgb(99, 171, 43).
Aa
Black text reads best on this color (7.39:1).
About this color
#63AB2B is a medium-light, vivid green. In OKLCH its lightness is 67%, its chroma 0.174 and its hue 135°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grass (#5CAC2D), ΔE 0.007 away. Black text reads best on it, at 7.39:1.
| Hue family | Greens |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.174) |
| Temperature | in between |
| Nearest name | Grass (#5CAC2D) |
| Black text | 7.39:1 |
| White text | 2.84:1 |
Values
| HEX | #63AB2B |
| RGB | rgb(99, 171, 43) |
| HSL | hsl(94, 60%, 42%) |
| OKLCH | oklch(66.9% 0.174 134.7) |
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 #63AB2B | 2.84:1 | Fails | Lc -59.5 | Large or bold text, headings |
| Black text on #63AB2B | 7.39:1 | AAA | Lc 49.8 | Large or bold text, headings |
| #63AB2B text on white | 2.84:1 | Fails | Lc 54.2 | Large or bold text, headings |
| #63AB2B text on black | 7.39:1 | AAA | Lc -47.6 | Large or bold text, headings |
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 400.
-
Step 50
50
#F1F8EE
oklch(97.1% 0.015 136.1)
-
Step 100
100
#E1EFDA
oklch(93.6% 0.032 135)
-
Step 200
200
#C9E3BB
oklch(88.6% 0.06 134.6)
-
Step 300
300
#A3D189
oklch(81% 0.109 134.7)
-
Step 400
400 (this color)
#63AB2B
oklch(66.9% 0.174 134.7)
-
Step 500
500
#54A000
oklch(63.1% 0.184 134.7)
-
Step 600
600
#468600
oklch(55.5% 0.161 134.6)
-
Step 700
700
#3A7100
oklch(49.1% 0.142 134.6)
-
Step 800
800
#2E5D00
oklch(42.8% 0.125 134.8)
-
Step 900
900
#254D00
oklch(37.6% 0.109 134.8)
-
Step 950
950
#142E00
oklch(27% 0.078 134.6)
#63AB2B 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) | #B29D10 | 0.103 |
| Deuteranopia (no green cones) | #A89738 | 0.105 |
| Tritanopia (no blue cones) | #62A492 | 0.127 |
| Achromatopsia (no color) | #999999 | 0.174 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63AB2B
#63AB2B
oklch(66.9% 0.174 134.7)
- #BC6FDD
#BC6FDD
oklch(66.9% 0.174 314.9)
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 #63AB2B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grass #5CAC2D ΔE 0.007
- Leaf #71AA34 ΔE 0.018
- Leaf Green #5CA904 ΔE 0.018
- Mid Green #50A747 ΔE 0.031
- Leafy Green #51B73B ΔE 0.033
- Medium Green #39AD48 ΔE 0.033
- Fern #63A950 ΔE 0.034
- Dark Pastel Green #56AE57 ΔE 0.036
Use #63AB2B 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.