#63BE37
Closest named color: Frog Green (#58BC08). oklch(71.8% 0.19 137.4), rgb(99, 190, 55).
Aa
Black text reads best on this color (8.95:1).
About this color
#63BE37 is a medium-light, vivid green. In OKLCH its lightness is 72%, its chroma 0.190 and its hue 137°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Frog Green (#58BC08), ΔE 0.024 away. Black text reads best on it, at 8.95:1.
| Hue family | Greens |
| Lightness | medium-light (72%) |
| Chroma | vivid (0.190) |
| Temperature | in between |
| Nearest name | Frog Green (#58BC08) |
| Black text | 8.95:1 |
| White text | 2.34:1 |
Values
| HEX | #63BE37 |
| RGB | rgb(99, 190, 55) |
| HSL | hsl(100, 55%, 48%) |
| OKLCH | oklch(71.8% 0.19 137.4) |
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 #63BE37 | 2.34:1 | Fails | Lc -50.9 | Large or bold text, headings |
| Black text on #63BE37 | 8.95:1 | AAA | Lc 58.0 | Large or bold text, headings |
| #63BE37 text on white | 2.34:1 | Fails | Lc 46.0 | Large or bold text, headings |
| #63BE37 text on black | 8.95:1 | AAA | Lc -56.1 | 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
#F1F8EE
oklch(97.1% 0.015 136.1)
-
Step 100
100
#DFF0D9
oklch(93.6% 0.035 137.5)
-
Step 200
200
#C5E4B9
oklch(88.5% 0.066 137)
-
Step 300
300
#9BD386
oklch(80.9% 0.119 137.5)
-
Step 400
400 (this color)
#63BE37
oklch(71.8% 0.19 137.4)
-
Step 500
500
#46A200
oklch(63.1% 0.192 137.3)
-
Step 600
600
#398800
oklch(55.5% 0.17 137.5)
-
Step 700
700
#2F7300
oklch(49.2% 0.15 137.5)
-
Step 800
800
#255E00
oklch(42.7% 0.13 137.5)
-
Step 900
900
#1E4F00
oklch(37.9% 0.116 137.5)
-
Step 950
950
#0F2F00
oklch(27% 0.083 137.4)
#63BE37 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) | #C4AE21 | 0.120 |
| Deuteranopia (no green cones) | #B8A644 | 0.122 |
| Tritanopia (no blue cones) | #5DB7A3 | 0.133 |
| Achromatopsia (no color) | #A9A9A9 | 0.191 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63BE37
#63BE37
oklch(71.8% 0.19 137.4)
- #D378F1
#D378F1
oklch(71.8% 0.19 317.2)
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 #63BE37, closest first.
No curated palette has a color within ΔE 0.04 of #63BE37.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Frog Green #58BC08 ΔE 0.024
- Leafy Green #51B73B ΔE 0.027
- Dark Lime Green #7EBD01 ΔE 0.028
- Dark Lime #84B701 ΔE 0.034
- Turtle Green #75B84F ΔE 0.036
- Apple #6ECB3C ΔE 0.039
- Shamrock Green #02C14D ΔE 0.041
- Lime Green #32CD32 ΔE 0.049
Use #63BE37 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.