#63CC6D
Closest named color: Seaweed (#18D17B). oklch(76% 0.165 145.6), rgb(99, 204, 109).
Aa
Black text reads best on this color (10.38:1).
About this color
#63CC6D is a medium-light, vivid green. In OKLCH its lightness is 76%, its chroma 0.165 and its hue 146°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Seaweed (#18D17B), ΔE 0.034 away. Black text reads best on it, at 10.38:1.
| Hue family | Greens |
| Lightness | medium-light (76%) |
| Chroma | vivid (0.165) |
| Temperature | in between |
| Nearest name | Seaweed (#18D17B) |
| Black text | 10.38:1 |
| White text | 2.02:1 |
Values
| HEX | #63CC6D |
| RGB | rgb(99, 204, 109) |
| HSL | hsl(126, 51%, 59%) |
| OKLCH | oklch(76% 0.165 145.6) |
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 #63CC6D | 2.02:1 | Fails | Lc -43.5 | Non-text elements, placeholder text |
| Black text on #63CC6D | 10.38:1 | AAA | Lc 64.9 | Content text, not long reading |
| #63CC6D text on white | 2.02:1 | Fails | Lc 39.0 | Non-text elements, placeholder text |
| #63CC6D text on black | 10.38:1 | AAA | Lc -63.4 | 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 300.
-
Step 50
50
#EDFAED
oklch(97.2% 0.022 145.4)
-
Step 100
100
#D7F3D7
oklch(93.6% 0.048 145.2)
-
Step 200
200
#B3EAB5
oklch(88.5% 0.091 145.7)
-
Step 300
300 (this color)
#63CC6D
oklch(76% 0.165 145.6)
-
Step 400
400
#00C23C
oklch(70.8% 0.218 145.7)
-
Step 500
500
#00A632
oklch(63.1% 0.195 145.7)
-
Step 600
600
#008C28
oklch(55.7% 0.172 145.6)
-
Step 700
700
#007621
oklch(49.2% 0.152 145.7)
-
Step 800
800
#006119
oklch(42.8% 0.133 145.6)
-
Step 900
900
#005113
oklch(37.8% 0.117 145.5)
-
Step 950
950
#003008
oklch(26.9% 0.083 145.6)
#63CC6D 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) | #CFBC65 | 0.127 |
| Deuteranopia (no green cones) | #C1B373 | 0.125 |
| Tritanopia (no blue cones) | #51C8B5 | 0.098 |
| Achromatopsia (no color) | #B6B6B6 | 0.165 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63CC6D
#63CC6D
oklch(76% 0.165 145.6)
- #E589E9
#E589E9
oklch(76% 0.164 325.6)
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 #63CC6D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Seaweed #18D17B ΔE 0.034
- Soft Green #6FC276 ΔE 0.035
- Apple #6ECB3C ΔE 0.043
- Dark Mint #48C072 ΔE 0.043
- Algae Green #21C36F ΔE 0.048
- Fresh Green #69D84F ΔE 0.051
- Turtle Green #75B84F ΔE 0.054
- Dark Mint Green #20C073 ΔE 0.055
Use #63CC6D 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.