#63BF66
Closest named color: Dark Mint (#48C072). oklch(72.6% 0.153 144.4), rgb(99, 191, 102).
Aa
Black text reads best on this color (9.17:1).
About this color
#63BF66 is a medium-light, vivid green. In OKLCH its lightness is 73%, its chroma 0.153 and its hue 144°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Mint (#48C072), ΔE 0.021 away. Black text reads best on it, at 9.17:1.
| Hue family | Greens |
| Lightness | medium-light (73%) |
| Chroma | vivid (0.153) |
| Temperature | in between |
| Nearest name | Dark Mint (#48C072) |
| Black text | 9.17:1 |
| White text | 2.28:1 |
Values
| HEX | #63BF66 |
| RGB | rgb(99, 191, 102) |
| HSL | hsl(122, 42%, 57%) |
| OKLCH | oklch(72.6% 0.153 144.4) |
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 #63BF66 | 2.28:1 | Fails | Lc -49.8 | Large or bold text, headings |
| Black text on #63BF66 | 9.17:1 | AAA | Lc 59.1 | Large or bold text, headings |
| #63BF66 text on white | 2.28:1 | Fails | Lc 44.9 | Non-text elements, placeholder text |
| #63BF66 text on black | 9.17:1 | AAA | Lc -57.2 | 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
#F0F8F0
oklch(97.1% 0.014 145.5)
-
Step 100
100
#DFEFDF
oklch(93.6% 0.027 145.4)
-
Step 200
200
#C5E3C4
oklch(88.6% 0.053 144.3)
-
Step 300
300
#9AD19A
oklch(80.8% 0.095 144.6)
-
Step 400
400 (this color)
#63BF66
oklch(72.6% 0.153 144.4)
-
Step 500
500
#15A62D
oklch(63.2% 0.195 144.5)
-
Step 600
600
#008C1F
oklch(55.6% 0.178 144.4)
-
Step 700
700
#007618
oklch(49.1% 0.157 144.4)
-
Step 800
800
#006112
oklch(42.8% 0.137 144.4)
-
Step 900
900
#00510E
oklch(37.8% 0.121 144.5)
-
Step 950
950
#043008
oklch(27% 0.081 144.3)
#63BF66 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) | #C2B15F | 0.115 |
| Deuteranopia (no green cones) | #B5A86C | 0.114 |
| Tritanopia (no blue cones) | #56BBAA | 0.094 |
| Achromatopsia (no color) | #ABABAB | 0.154 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63BF66
#63BF66
oklch(72.6% 0.153 144.4)
- #D583DC
#D583DC
oklch(72.7% 0.152 324.2)
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 #63BF66, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Mint #48C072 ΔE 0.021
- Soft Green #6FC276 ΔE 0.024
- Turtle Green #75B84F ΔE 0.026
- Boring Green #63B365 ΔE 0.034
- Algae Green #21C36F ΔE 0.035
- Dark Mint Green #20C073 ΔE 0.037
- Cool Green #33B864 ΔE 0.041
- Greenblue #23C48B ΔE 0.048
Use #63BF66 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.