#63B548
Closest named color: Leafy Green (#51B73B). oklch(69.7% 0.166 138.7), rgb(99, 181, 72).
Aa
Black text reads best on this color (8.23:1).
About this color
#63B548 is a medium-light, vivid green. In OKLCH its lightness is 70%, its chroma 0.166 and its hue 139°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Leafy Green (#51B73B), ΔE 0.022 away. Black text reads best on it, at 8.23:1.
| Hue family | Greens |
| Lightness | medium-light (70%) |
| Chroma | vivid (0.166) |
| Temperature | in between |
| Nearest name | Leafy Green (#51B73B) |
| Black text | 8.23:1 |
| White text | 2.55:1 |
Values
| HEX | #63B548 |
| RGB | rgb(99, 181, 72) |
| HSL | hsl(105, 43%, 50%) |
| OKLCH | oklch(69.7% 0.166 138.7) |
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 #63B548 | 2.55:1 | Fails | Lc -54.8 | Large or bold text, headings |
| Black text on #63B548 | 8.23:1 | AAA | Lc 54.3 | Large or bold text, headings |
| #63B548 text on white | 2.55:1 | Fails | Lc 49.7 | Large or bold text, headings |
| #63B548 text on black | 8.23:1 | AAA | Lc -52.2 | 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
#F1F8EF
oklch(97.1% 0.014 138.7)
-
Step 100
100
#E0EFDC
oklch(93.6% 0.03 139.1)
-
Step 200
200
#C7E3BE
oklch(88.5% 0.058 138.1)
-
Step 300
300
#9FD190
oklch(80.9% 0.103 138.6)
-
Step 400
400 (this color)
#63B548
oklch(69.7% 0.166 138.7)
-
Step 500
500
#3DA300
oklch(63% 0.197 138.7)
-
Step 600
600
#328900
oklch(55.5% 0.174 138.7)
-
Step 700
700
#297400
oklch(49.2% 0.154 138.7)
-
Step 800
800
#205F00
oklch(42.8% 0.134 138.7)
-
Step 900
900
#194F00
oklch(37.7% 0.118 138.8)
-
Step 950
950
#0C2F00
oklch(26.9% 0.084 138.6)
#63B548 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) | #BAA73C | 0.110 |
| Deuteranopia (no green cones) | #AF9F50 | 0.111 |
| Tritanopia (no blue cones) | #5DAF9E | 0.115 |
| Achromatopsia (no color) | #A2A2A2 | 0.167 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63B548
#63B548
oklch(69.7% 0.166 138.7)
- #C878DF
#C878DF
oklch(69.7% 0.167 318.4)
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 #63B548, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Leafy Green #51B73B ΔE 0.022
- Turtle Green #75B84F ΔE 0.023
- Leaf #71AA34 ΔE 0.031
- Dark Pastel Green #56AE57 ΔE 0.031
- Grass #5CAC2D ΔE 0.032
- Boring Green #63B365 ΔE 0.033
- Cool Green #33B864 ΔE 0.036
- Fern #63A950 ΔE 0.038
Use #63B548 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.