#63C548
Closest named color: Apple (#6ECB3C). oklch(73.8% 0.187 139.5), rgb(99, 197, 72).
Aa
Black text reads best on this color (9.61:1).
About this color
#63C548 is a medium-light, vivid green. In OKLCH its lightness is 74%, its chroma 0.187 and its hue 140°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Apple (#6ECB3C), ΔE 0.023 away. Black text reads best on it, at 9.61:1.
| Hue family | Greens |
| Lightness | medium-light (74%) |
| Chroma | vivid (0.187) |
| Temperature | in between |
| Nearest name | Apple (#6ECB3C) |
| Black text | 9.61:1 |
| White text | 2.18:1 |
Values
| HEX | #63C548 |
| RGB | rgb(99, 197, 72) |
| HSL | hsl(107, 52%, 53%) |
| OKLCH | oklch(73.8% 0.187 139.5) |
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 #63C548 | 2.18:1 | Fails | Lc -47.4 | Large or bold text, headings |
| Black text on #63C548 | 9.61:1 | AAA | Lc 61.3 | Content text, not long reading |
| #63C548 text on white | 2.18:1 | Fails | Lc 42.7 | Non-text elements, placeholder text |
| #63C548 text on black | 9.61:1 | AAA | Lc -59.5 | 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
#F0F8EE
oklch(97% 0.016 139.4)
-
Step 100
100
#DFF0DA
oklch(93.7% 0.034 138.6)
-
Step 200
200
#C3E4BB
oklch(88.4% 0.065 139.6)
-
Step 300
300
#98D38A
oklch(80.8% 0.117 139.7)
-
Step 400
400 (this color)
#63C548
oklch(73.8% 0.187 139.5)
-
Step 500
500
#36A400
oklch(63.1% 0.201 139.5)
-
Step 600
600
#2C8A00
oklch(55.6% 0.177 139.5)
-
Step 700
700
#247400
oklch(49.1% 0.156 139.5)
-
Step 800
800
#1C5F00
oklch(42.6% 0.136 139.5)
-
Step 900
900
#165000
oklch(37.9% 0.121 139.5)
-
Step 950
950
#0A3000
oklch(27.2% 0.086 139.4)
#63C548 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) | #CAB539 | 0.125 |
| Deuteranopia (no green cones) | #BDAC52 | 0.126 |
| Tritanopia (no blue cones) | #5ABFAB | 0.126 |
| Achromatopsia (no color) | #AFAFAF | 0.188 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63C548
#63C548
oklch(73.8% 0.187 139.5)
- #DC7EF3
#DC7EF3
oklch(73.8% 0.187 319.5)
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 #63C548, closest first.
No curated palette has a color within ΔE 0.04 of #63C548.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Apple #6ECB3C ΔE 0.023
- Dark Lime Green #7EBD01 ΔE 0.035
- Apple Green #76CD26 ΔE 0.038
- Frog Green #58BC08 ΔE 0.041
- Turtle Green #75B84F ΔE 0.041
- Lime Green #32CD32 ΔE 0.043
- Leafy Green #51B73B ΔE 0.044
- Shamrock Green #02C14D ΔE 0.045
Use #63C548 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.