#63B370
Closest named color: Boring Green (#63B365). oklch(69.8% 0.125 147.8), rgb(99, 179, 112).
Aa
Black text reads best on this color (8.21:1).
About this color
#63B370 is a medium-light, moderately saturated green. In OKLCH its lightness is 70%, its chroma 0.125 and its hue 148°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Boring Green (#63B365), ΔE 0.014 away. Black text reads best on it, at 8.21:1.
| Hue family | Greens |
| Lightness | medium-light (70%) |
| Chroma | moderately saturated (0.125) |
| Temperature | in between |
| Nearest name | Boring Green (#63B365) |
| Black text | 8.21:1 |
| White text | 2.55:1 |
Values
| HEX | #63B370 |
| RGB | rgb(99, 179, 112) |
| HSL | hsl(130, 34%, 55%) |
| OKLCH | oklch(69.8% 0.125 147.8) |
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 #63B370 | 2.55:1 | Fails | Lc -55.0 | Large or bold text, headings |
| Black text on #63B370 | 8.21:1 | AAA | Lc 54.1 | Large or bold text, headings |
| #63B370 text on white | 2.55:1 | Fails | Lc 49.9 | Large or bold text, headings |
| #63B370 text on black | 8.21:1 | AAA | Lc -52.1 | 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
#F1F7F1
oklch(97% 0.01 145.5)
-
Step 100
100
#E0EEE1
oklch(93.5% 0.023 147.4)
-
Step 200
200
#C7E2C9
oklch(88.6% 0.044 147.3)
-
Step 300
300
#9FCFA4
oklch(80.9% 0.078 147.6)
-
Step 400
400 (this color)
#63B370
oklch(69.8% 0.125 147.8)
-
Step 500
500
#30A34D
oklch(63.2% 0.161 147.9)
-
Step 600
600
#008B35
oklch(55.5% 0.161 147.8)
-
Step 700
700
#00752B
oklch(49% 0.143 147.8)
-
Step 800
800
#006022
oklch(42.6% 0.124 147.8)
-
Step 900
900
#08501E
oklch(37.8% 0.104 147.9)
-
Step 950
950
#0A2F12
oklch(27.1% 0.067 147.5)
#63B370 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) | #B5A76B | 0.102 |
| Deuteranopia (no green cones) | #A99F74 | 0.100 |
| Tritanopia (no blue cones) | #56B0A2 | 0.072 |
| Achromatopsia (no color) | #A2A2A2 | 0.126 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63B370
#63B370
oklch(69.8% 0.125 147.8)
- #C781C5
#C781C5
oklch(69.8% 0.124 327.8)
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 #63B370, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Boring Green #63B365 ΔE 0.014
- Faded Green #7BB274 ΔE 0.026
- Algae #54AC68 ΔE 0.027
- Medium Sea Green #3CB371 ΔE 0.029
- Tea #65AB7C ΔE 0.032
- Asparagus #77AB56 ΔE 0.033
- Dark Seafoam Green #3EAF76 ΔE 0.033
- Dark Pastel Green #56AE57 ΔE 0.035
Use #63B370 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.