#63B450
Closest named color: Turtle Green (#75B84F). oklch(69.6% 0.158 139.9), rgb(99, 180, 80).
Aa
Black text reads best on this color (8.17:1).
About this color
#63B450 is a medium-light, vivid green. In OKLCH its lightness is 70%, its chroma 0.158 and its hue 140°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Turtle Green (#75B84F), ΔE 0.022 away. Black text reads best on it, at 8.17:1.
| Hue family | Greens |
| Lightness | medium-light (70%) |
| Chroma | vivid (0.158) |
| Temperature | in between |
| Nearest name | Turtle Green (#75B84F) |
| Black text | 8.17:1 |
| White text | 2.56:1 |
Values
| HEX | #63B450 |
| RGB | rgb(99, 180, 80) |
| HSL | hsl(109, 40%, 51%) |
| OKLCH | oklch(69.6% 0.158 139.9) |
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 #63B450 | 2.56:1 | Fails | Lc -55.1 | Large or bold text, headings |
| Black text on #63B450 | 8.17:1 | AAA | Lc 54.0 | Large or bold text, headings |
| #63B450 text on white | 2.56:1 | Fails | Lc 50.0 | Large or bold text, headings |
| #63B450 text on black | 8.17:1 | AAA | Lc -51.9 | 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
#F1F8EF
oklch(97.1% 0.014 138.7)
-
Step 100
100
#E0EFDD
oklch(93.6% 0.029 140.5)
-
Step 200
200
#C7E3C0
oklch(88.6% 0.056 139.4)
-
Step 300
300
#9FD194
oklch(81% 0.099 140)
-
Step 400
400 (this color)
#63B450
oklch(69.6% 0.158 139.9)
-
Step 500
500
#33A403
oklch(63% 0.201 139.9)
-
Step 600
600
#298A00
oklch(55.5% 0.178 139.9)
-
Step 700
700
#217400
oklch(49% 0.157 139.9)
-
Step 800
800
#1A5F00
oklch(42.6% 0.136 139.8)
-
Step 900
900
#145000
oklch(37.8% 0.121 139.9)
-
Step 950
950
#0A2F02
oklch(26.8% 0.083 140)
#63B450 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) | #B9A646 | 0.109 |
| Deuteranopia (no green cones) | #AD9F57 | 0.107 |
| Tritanopia (no blue cones) | #5CAF9E | 0.106 |
| Achromatopsia (no color) | #A1A1A1 | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63B450
#63B450
oklch(69.6% 0.158 139.9)
- #C779D9
#C779D9
oklch(69.4% 0.158 319.9)
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 #63B450, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turtle Green #75B84F ΔE 0.022
- Dark Pastel Green #56AE57 ΔE 0.024
- Boring Green #63B365 ΔE 0.024
- Leafy Green #51B73B ΔE 0.029
- Leaf #71AA34 ΔE 0.031
- Fern #63A950 ΔE 0.032
- Cool Green #33B864 ΔE 0.033
- Asparagus #77AB56 ΔE 0.034
Use #63B450 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.