#63D78C
Closest named color: Aqua Green (#12E193). oklch(79.3% 0.151 153), rgb(99, 215, 140).
Aa
Black text reads best on this color (11.62:1).
About this color
#63D78C is a light, vivid green. In OKLCH its lightness is 79%, its chroma 0.151 and its hue 153°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Aqua Green (#12E193), ΔE 0.037 away. Black text reads best on it, at 11.62:1.
| Hue family | Greens |
| Lightness | light (79%) |
| Chroma | vivid (0.151) |
| Temperature | in between |
| Nearest name | Aqua Green (#12E193) |
| Black text | 11.62:1 |
| White text | 1.80:1 |
Values
| HEX | #63D78C |
| RGB | rgb(99, 215, 140) |
| HSL | hsl(141, 59%, 62%) |
| OKLCH | oklch(79.3% 0.151 153) |
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 #63D78C | 1.80:1 | Fails | Lc -37.3 | Non-text elements, placeholder text |
| Black text on #63D78C | 11.62:1 | AAA | Lc 70.6 | Content text, not long reading |
| #63D78C text on white | 1.80:1 | Fails | Lc 33.3 | Non-text elements, placeholder text |
| #63D78C text on black | 11.62:1 | AAA | Lc -69.3 | 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
#ECFAEF
oklch(97.2% 0.021 152.2)
-
Step 100
100
#D5F3DC
oklch(93.6% 0.044 152.4)
-
Step 200
200
#AFEABF
oklch(88.5% 0.084 152.9)
-
Step 300
300 (this color)
#63D78C
oklch(79.3% 0.151 153)
-
Step 400
400
#00C066
oklch(70.8% 0.183 152.8)
-
Step 500
500
#00A457
oklch(63% 0.162 153)
-
Step 600
600
#008A48
oklch(55.5% 0.143 153)
-
Step 700
700
#00743C
oklch(49% 0.126 153.1)
-
Step 800
800
#005F30
oklch(42.6% 0.109 153.1)
-
Step 900
900
#005027
oklch(37.8% 0.098 152.9)
-
Step 950
950
#003015
oklch(27.1% 0.07 152.9)
#63D78C 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) | #D7C887 | 0.131 |
| Deuteranopia (no green cones) | #C7BC91 | 0.129 |
| Tritanopia (no blue cones) | #44D4C4 | 0.079 |
| Achromatopsia (no color) | #C1C1C1 | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63D78C
#63D78C
oklch(79.3% 0.151 153)
- #F495E5
#F495E5
oklch(79.3% 0.151 332.8)
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 #63D78C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Aqua Green #12E193 ΔE 0.037
- Emerald #06D6A0 ΔE 0.041
- Seaweed #18D17B ΔE 0.048
- Weird Green #3AE57F ΔE 0.051
- Soft Green #6FC276 ΔE 0.056
- Medium Aquamarine #66CDAA ΔE 0.057
- Aqua Marine #2EE8BB ΔE 0.063
- Fresh Green #69D84F ΔE 0.065
Use #63D78C 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.