#63AA50
Closest named color: Fern (#63A950). oklch(67% 0.144 139.4), rgb(99, 170, 80).
Aa
Black text reads best on this color (7.39:1).
About this color
#63AA50 is a medium-light, vivid green. In OKLCH its lightness is 67%, its chroma 0.144 and its hue 139°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Fern (#63A950), ΔE 0.003 away. Black text reads best on it, at 7.39:1.
| Hue family | Greens |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.144) |
| Temperature | in between |
| Nearest name | Fern (#63A950) |
| Black text | 7.39:1 |
| White text | 2.83:1 |
Values
| HEX | #63AA50 |
| RGB | rgb(99, 170, 80) |
| HSL | hsl(107, 36%, 49%) |
| OKLCH | oklch(67% 0.144 139.4) |
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 #63AA50 | 2.83:1 | Fails | Lc -59.6 | Large or bold text, headings |
| Black text on #63AA50 | 7.39:1 | AAA | Lc 49.8 | Large or bold text, headings |
| #63AA50 text on white | 2.83:1 | Fails | Lc 54.3 | Large or bold text, headings |
| #63AA50 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
#F1F8F0
oklch(97.2% 0.013 141.8)
-
Step 100
100
#E1EEDE
oklch(93.5% 0.025 139.8)
-
Step 200
200
#C9E2C2
oklch(88.6% 0.051 138.9)
-
Step 300
300
#A3CF97
oklch(80.9% 0.09 139)
-
Step 400
400 (this color)
#63AA50
oklch(67% 0.144 139.4)
-
Step 500
500
#42A222
oklch(63% 0.184 139.4)
-
Step 600
600
#2D8A00
oklch(55.6% 0.177 139.4)
-
Step 700
700
#257400
oklch(49.1% 0.156 139.3)
-
Step 800
800
#1D5F00
oklch(42.7% 0.135 139.3)
-
Step 900
900
#164F00
oklch(37.6% 0.119 139.4)
-
Step 950
950
#0F2F06
oklch(27.1% 0.076 139.5)
#63AA50 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) | #AE9D48 | 0.098 |
| Deuteranopia (no green cones) | #A49756 | 0.097 |
| Tritanopia (no blue cones) | #5EA596 | 0.098 |
| Achromatopsia (no color) | #999999 | 0.144 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63AA50
#63AA50
oklch(67% 0.144 139.4)
- #BB76CC
#BB76CC
oklch(67% 0.143 319.5)
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 #63AA50, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Fern #63A950 ΔE 0.003
- Dark Pastel Green #56AE57 ΔE 0.014
- Off Green #6BA353 ΔE 0.023
- Mid Green #50A747 ΔE 0.023
- Asparagus #77AB56 ΔE 0.024
- Leaf #71AA34 ΔE 0.026
- Algae #54AC68 ΔE 0.027
- Boring Green #63B365 ΔE 0.030
Use #63AA50 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.