#63B855
Closest named color: Turtle Green (#75B84F). oklch(70.6% 0.159 140.9), rgb(99, 184, 85).
Aa
Black text reads best on this color (8.51:1).
About this color
#63B855 is a medium-light, vivid green. In OKLCH its lightness is 71%, its chroma 0.159 and its hue 141°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Turtle Green (#75B84F), ΔE 0.017 away. Black text reads best on it, at 8.51:1.
| Hue family | Greens |
| Lightness | medium-light (71%) |
| Chroma | vivid (0.159) |
| Temperature | in between |
| Nearest name | Turtle Green (#75B84F) |
| Black text | 8.51:1 |
| White text | 2.46:1 |
Values
| HEX | #63B855 |
| RGB | rgb(99, 184, 85) |
| HSL | hsl(112, 41%, 53%) |
| OKLCH | oklch(70.6% 0.159 140.9) |
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 #63B855 | 2.46:1 | Fails | Lc -53.3 | Large or bold text, headings |
| Black text on #63B855 | 8.51:1 | AAA | Lc 55.8 | Large or bold text, headings |
| #63B855 text on white | 2.46:1 | Fails | Lc 48.2 | Large or bold text, headings |
| #63B855 text on black | 8.51:1 | AAA | Lc -53.8 | 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
#C6E3C1
oklch(88.6% 0.055 141)
-
Step 300
300
#9DD194
oklch(80.9% 0.1 140.9)
-
Step 400
400 (this color)
#63B855
oklch(70.6% 0.159 140.9)
-
Step 500
500
#2BA50C
oklch(63.1% 0.203 140.9)
-
Step 600
600
#1F8B00
oklch(55.6% 0.182 140.9)
-
Step 700
700
#197500
oklch(49.1% 0.161 140.9)
-
Step 800
800
#126000
oklch(42.7% 0.14 141)
-
Step 900
900
#0E5000
oklch(37.6% 0.123 140.9)
-
Step 950
950
#083003
oklch(27.1% 0.084 141.1)
#63B855 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) | #BCAA4C | 0.111 |
| Deuteranopia (no green cones) | #B1A25C | 0.112 |
| Tritanopia (no blue cones) | #5BB3A2 | 0.105 |
| Achromatopsia (no color) | #A5A5A5 | 0.160 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63B855
#63B855
oklch(70.6% 0.159 140.9)
- #CC7CDC
#CC7CDC
oklch(70.6% 0.159 320.8)
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 #63B855, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turtle Green #75B84F ΔE 0.017
- Boring Green #63B365 ΔE 0.026
- Leafy Green #51B73B ΔE 0.031
- Cool Green #33B864 ΔE 0.033
- Dark Pastel Green #56AE57 ΔE 0.033
- Dark Mint #48C072 ΔE 0.034
- Leaf #71AA34 ΔE 0.040
- Asparagus #77AB56 ΔE 0.041
Use #63B855 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.