#63A543
Closest named color: Fern (#63A950). oklch(65.6% 0.148 136.7), rgb(99, 165, 67).
Aa
Black text reads best on this color (6.99:1).
About this color
#63A543 is a medium-light, vivid green. In OKLCH its lightness is 66%, its chroma 0.148 and its hue 137°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Fern (#63A950), ΔE 0.015 away. Black text reads best on it, at 6.99:1.
| Hue family | Greens |
| Lightness | medium-light (66%) |
| Chroma | vivid (0.148) |
| Temperature | in between |
| Nearest name | Fern (#63A950) |
| Black text | 6.99:1 |
| White text | 3.00:1 |
Values
| HEX | #63A543 |
| RGB | rgb(99, 165, 67) |
| HSL | hsl(100, 42%, 45%) |
| OKLCH | oklch(65.6% 0.148 136.7) |
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 #63A543 | 3.00:1 | AA large text | Lc -61.9 | Content text, not long reading |
| Black text on #63A543 | 6.99:1 | AA | Lc 47.5 | Large or bold text, headings |
| #63A543 text on white | 3.00:1 | AA large text | Lc 56.5 | Large or bold text, headings |
| #63A543 text on black | 6.99:1 | AA | Lc -45.3 | 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
#E4EDE0
oklch(93.6% 0.02 135.8)
-
Step 200
200
#CDE0C6
oklch(88.5% 0.041 137.2)
-
Step 300
300
#ABCC9E
oklch(80.9% 0.072 136.9)
-
Step 400
400
#7EB167
oklch(70.6% 0.116 136.5)
-
Step 500
500 (this color)
#63A543
oklch(65.6% 0.148 136.7)
-
Step 600
600
#40870F
oklch(55.5% 0.161 136.6)
-
Step 700
700
#327200
oklch(49% 0.148 136.7)
-
Step 800
800
#2A5D07
oklch(42.6% 0.124 136.6)
-
Step 900
900
#274D12
oklch(37.8% 0.097 136.6)
-
Step 950
950
#172D0D
oklch(27% 0.061 137.1)
#63A543 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) | #AA9839 | 0.094 |
| Deuteranopia (no green cones) | #A1934A | 0.094 |
| Tritanopia (no blue cones) | #609F90 | 0.106 |
| Achromatopsia (no color) | #959595 | 0.149 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63A543
#63A543
oklch(65.6% 0.148 136.7)
- #B571CD
#B571CD
oklch(65.6% 0.15 316.8)
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 #63A543, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Fern #63A950 ΔE 0.015
- Mid Green #50A747 ΔE 0.017
- Off Green #6BA353 ΔE 0.022
- Muted Green #5FA052 ΔE 0.025
- Leaf #71AA34 ΔE 0.026
- Dark Pastel Green #56AE57 ΔE 0.027
- Flat Green #699D4C ΔE 0.028
- Grass #5CAC2D ΔE 0.032
Use #63A543 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.