#63A641
Closest named color: Fern (#63A950). oklch(65.8% 0.152 136.5), rgb(99, 166, 65).
Aa
Black text reads best on this color (7.06:1).
About this color
#63A641 is a medium-light, vivid green. In OKLCH its lightness is 66%, its chroma 0.152 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 7.06:1.
| Hue family | Greens |
| Lightness | medium-light (66%) |
| Chroma | vivid (0.152) |
| Temperature | in between |
| Nearest name | Fern (#63A950) |
| Black text | 7.06:1 |
| White text | 2.97:1 |
Values
| HEX | #63A641 |
| RGB | rgb(99, 166, 65) |
| HSL | hsl(100, 44%, 45%) |
| OKLCH | oklch(65.8% 0.152 136.5) |
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 #63A641 | 2.97:1 | Fails | Lc -61.5 | Content text, not long reading |
| Black text on #63A641 | 7.06:1 | AAA | Lc 47.9 | Large or bold text, headings |
| #63A641 text on white | 2.97:1 | Fails | Lc 56.1 | Large or bold text, headings |
| #63A641 text on black | 7.06:1 | 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
#E3EDDF
oklch(93.5% 0.021 136.6)
-
Step 200
200
#CDE0C5
oklch(88.5% 0.042 136.3)
-
Step 300
300
#ABCC9D
oklch(80.9% 0.074 136.5)
-
Step 400
400
#7DB266
oklch(70.8% 0.119 136.8)
-
Step 500
500 (this color)
#63A641
oklch(65.8% 0.152 136.5)
-
Step 600
600
#3F8706
oklch(55.5% 0.164 136.5)
-
Step 700
700
#337200
oklch(49.1% 0.147 136.5)
-
Step 800
800
#295D02
oklch(42.5% 0.126 136.5)
-
Step 900
900
#264D10
oklch(37.7% 0.099 136.6)
-
Step 950
950
#172D0C
oklch(27% 0.062 136.6)
#63A641 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) | #AB9936 | 0.095 |
| Deuteranopia (no green cones) | #A29349 | 0.097 |
| Tritanopia (no blue cones) | #60A090 | 0.107 |
| Achromatopsia (no color) | #969696 | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63A641
#63A641
oklch(65.8% 0.152 136.5)
- #B671CF
#B671CF
oklch(65.8% 0.152 316.6)
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 #63A641, 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
- Leaf #71AA34 ΔE 0.022
- Off Green #6BA353 ΔE 0.025
- Dark Pastel Green #56AE57 ΔE 0.026
- Grass #5CAC2D ΔE 0.028
- Muted Green #5FA052 ΔE 0.028
- Flat Green #699D4C ΔE 0.032
Use #63A641 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.