#63A647
Closest named color: Fern (#63A950). oklch(65.9% 0.146 137.4), rgb(99, 166, 71).
Aa
Black text reads best on this color (7.07:1).
About this color
#63A647 is a medium-light, vivid green. In OKLCH its lightness is 66%, its chroma 0.146 and its hue 137°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Fern (#63A950), ΔE 0.011 away. Black text reads best on it, at 7.07:1.
| Hue family | Greens |
| Lightness | medium-light (66%) |
| Chroma | vivid (0.146) |
| Temperature | in between |
| Nearest name | Fern (#63A950) |
| Black text | 7.07:1 |
| White text | 2.96:1 |
Values
| HEX | #63A647 |
| RGB | rgb(99, 166, 71) |
| HSL | hsl(102, 40%, 46%) |
| OKLCH | oklch(65.9% 0.146 137.4) |
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 #63A647 | 2.96:1 | Fails | Lc -61.4 | Content text, not long reading |
| Black text on #63A647 | 7.07:1 | AAA | Lc 48.0 | Large or bold text, headings |
| #63A647 text on white | 2.96:1 | Fails | Lc 56.1 | Large or bold text, headings |
| #63A647 text on black | 7.07:1 | AAA | Lc -45.7 | 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 500.
-
Step 50
50
#F2F7F1
oklch(97.1% 0.01 140.5)
-
Step 100
100
#E3EDE0
oklch(93.5% 0.02 138.4)
-
Step 200
200
#CDE0C6
oklch(88.5% 0.041 137.2)
-
Step 300
300
#ABCC9F
oklch(80.9% 0.071 137.4)
-
Step 400
400
#7DB169
oklch(70.6% 0.114 137.4)
-
Step 500
500 (this color)
#63A647
oklch(65.9% 0.146 137.4)
-
Step 600
600
#3F8716
oklch(55.5% 0.159 137.3)
-
Step 700
700
#307304
oklch(49.2% 0.149 137.5)
-
Step 800
800
#295D0C
oklch(42.6% 0.122 137.4)
-
Step 900
900
#264D14
oklch(37.8% 0.096 137.4)
-
Step 950
950
#172D0E
oklch(27% 0.06 137.5)
#63A647 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) | #AB993E | 0.095 |
| Deuteranopia (no green cones) | #A2944E | 0.095 |
| Tritanopia (no blue cones) | #60A191 | 0.101 |
| Achromatopsia (no color) | #969696 | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63A647
#63A647
oklch(65.9% 0.146 137.4)
- #B673CC
#B673CC
oklch(66% 0.146 317.4)
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 #63A647, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Fern #63A950 ΔE 0.011
- Mid Green #50A747 ΔE 0.017
- Off Green #6BA353 ΔE 0.020
- Dark Pastel Green #56AE57 ΔE 0.024
- Muted Green #5FA052 ΔE 0.024
- Leaf #71AA34 ΔE 0.026
- Flat Green #699D4C ΔE 0.029
- Asparagus #77AB56 ΔE 0.032
Use #63A647 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.