#63AC0B
Closest named color: Leaf Green (#5CA904). oklch(67% 0.187 133.3), rgb(99, 172, 11).
Aa
Black text reads best on this color (7.43:1).
About this color
#63AC0B is a medium-light, vivid green. In OKLCH its lightness is 67%, its chroma 0.187 and its hue 133°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Leaf Green (#5CA904), ΔE 0.012 away. Black text reads best on it, at 7.43:1.
| Hue family | Greens |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.187) |
| Temperature | in between |
| Nearest name | Leaf Green (#5CA904) |
| Black text | 7.43:1 |
| White text | 2.82:1 |
Values
| HEX | #63AC0B |
| RGB | rgb(99, 172, 11) |
| HSL | hsl(87, 88%, 36%) |
| OKLCH | oklch(67% 0.187 133.3) |
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 #63AC0B | 2.82:1 | Fails | Lc -59.2 | Large or bold text, headings |
| Black text on #63AC0B | 7.43:1 | AAA | Lc 50.1 | Large or bold text, headings |
| #63AC0B text on white | 2.82:1 | Fails | Lc 53.9 | Large or bold text, headings |
| #63AC0B text on black | 7.43:1 | AAA | Lc -47.9 | 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
#F1F8ED
oklch(97.1% 0.016 133.8)
-
Step 100
100
#E1EFD8
oklch(93.5% 0.034 133)
-
Step 200
200
#C8E3B7
oklch(88.5% 0.066 133.4)
-
Step 300
300
#A2D182
oklch(80.9% 0.117 133.5)
-
Step 400
400 (this color)
#63AC0B
oklch(67% 0.187 133.3)
-
Step 500
500
#5A9F00
oklch(63.2% 0.179 133.4)
-
Step 600
600
#4B8500
oklch(55.5% 0.157 133.2)
-
Step 700
700
#3E7000
oklch(49% 0.139 133.3)
-
Step 800
800
#325C00
oklch(42.7% 0.121 133.3)
-
Step 900
900
#294D00
oklch(37.8% 0.107 133.2)
-
Step 950
950
#162E00
oklch(27.1% 0.077 133.4)
#63AC0B 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) | #B39D00 | 0.108 |
| Deuteranopia (no green cones) | #AA9826 | 0.107 |
| Tritanopia (no blue cones) | #63A592 | 0.139 |
| Achromatopsia (no color) | #9A9A9A | 0.188 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63AC0B
#63AC0B
oklch(67% 0.187 133.3)
- #BD6CE5
#BD6CE5
oklch(67% 0.187 313.3)
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 #63AC0B, closest first.
No curated palette has a color within ΔE 0.04 of #63AC0B.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Leaf Green #5CA904 ΔE 0.012
- Grass #5CAC2D ΔE 0.014
- Leaf #71AA34 ΔE 0.029
- Leafy Green #51B73B ΔE 0.033
- Medium Green #39AD48 ΔE 0.041
- Mid Green #50A747 ΔE 0.043
- Avocado Green #87A922 ΔE 0.044
- Frog Green #58BC08 ΔE 0.045
Use #63AC0B 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.