#63CA63
Closest named color: Apple (#6ECB3C). oklch(75.4% 0.171 143.6), rgb(99, 202, 99).
Aa
Black text reads best on this color (10.15:1).
About this color
#63CA63 is a medium-light, vivid green. In OKLCH its lightness is 75%, its chroma 0.171 and its hue 144°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Apple (#6ECB3C), ΔE 0.034 away. Black text reads best on it, at 10.15:1.
| Hue family | Greens |
| Lightness | medium-light (75%) |
| Chroma | vivid (0.171) |
| Temperature | in between |
| Nearest name | Apple (#6ECB3C) |
| Black text | 10.15:1 |
| White text | 2.06:1 |
Values
| HEX | #63CA63 |
| RGB | rgb(99, 202, 99) |
| HSL | hsl(120, 49%, 59%) |
| OKLCH | oklch(75.4% 0.171 143.6) |
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 #63CA63 | 2.06:1 | Fails | Lc -44.6 | Non-text elements, placeholder text |
| Black text on #63CA63 | 10.15:1 | AAA | Lc 63.9 | Content text, not long reading |
| #63CA63 text on white | 2.06:1 | Fails | Lc 40.1 | Non-text elements, placeholder text |
| #63CA63 text on black | 10.15:1 | AAA | Lc -62.2 | Content text, not long reading |
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
#F0F8EF
oklch(97.1% 0.015 142.2)
-
Step 100
100
#DEF0DD
oklch(93.7% 0.032 143.9)
-
Step 200
200
#C2E4C1
oklch(88.5% 0.059 144.3)
-
Step 300
300
#96D394
oklch(80.9% 0.107 143.8)
-
Step 400
400 (this color)
#63CA63
oklch(75.4% 0.171 143.6)
-
Step 500
500
#00A71D
oklch(63.2% 0.207 143.7)
-
Step 600
600
#008C16
oklch(55.5% 0.182 143.6)
-
Step 700
700
#007611
oklch(49.1% 0.161 143.6)
-
Step 800
800
#00610C
oklch(42.7% 0.14 143.6)
-
Step 900
900
#005108
oklch(37.7% 0.124 143.6)
-
Step 950
950
#003003
oklch(26.8% 0.088 143.6)
#63CA63 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) | #CEBA5A | 0.127 |
| Deuteranopia (no green cones) | #C0B16A | 0.126 |
| Tritanopia (no blue cones) | #54C5B2 | 0.107 |
| Achromatopsia (no color) | #B4B4B4 | 0.172 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63CA63
#63CA63
oklch(75.4% 0.171 143.6)
- #E386EC
#E386EC
oklch(75.4% 0.171 323.9)
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 #63CA63, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Apple #6ECB3C ΔE 0.034
- Seaweed #18D17B ΔE 0.037
- Soft Green #6FC276 ΔE 0.038
- Dark Mint #48C072 ΔE 0.043
- Algae Green #21C36F ΔE 0.045
- Turtle Green #75B84F ΔE 0.048
- Fresh Green #69D84F ΔE 0.049
- Apple Green #76CD26 ΔE 0.049
Use #63CA63 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.